Suomi.fi authorisations for tax matters – how to grant and request authorisation

The party who has been granted this authorisation can manage all tax matters on behalf of the authorising party:

• on behalf of an individual taxpayer: personal tax matters
• on behalf of a self-employed person (a self-employed business operator or an agricultural operator): both personal and business-related tax matters
• on behalf of an organisation, e.g. a company or cooperative: all of the organisation’s tax matters.

The authorised party can use the authorisation at tax offices, in the telephone service, in MyTax, in the Ilmoitin.fi service and through software provided that the software has an interface to the Tax Administration (Vero API). The authorised party can see all of the authorising party’s tax information in MyTax and can also ask for the information via other channels.

Note the exceptions: The “Managing of tax affairs” authorisation does not allow the authorised party to
- change a company’s bank account number in MyTax if the company form is a limited company, public limited company or non-profit association
- submit a bank account number or change a bank account number of a person under legal guardianship
- use Palkka.fi, EMCS or the e-service for filing excise duties
- submit reports to the Incomes Register – the Incomes Register requires separate authorisations.

Self-employed business operators or agricultural operators: the authorised party can also view your personal tax information

If you grant the “Managing of tax affairs” authorisation to an accounting firm, the representative of the accounting firm can see your personal tax information as well as your company’s information in MyTax.

The authorised party can view the following details in MyTax:

• income tax, inheritance tax, gift tax
• advance rulings and claims for adjustment relating to income tax
• decisions on claims for adjustment made by the Tax Administration and the Adjustment Board
• letters and decisions concerning taxation
• tax audit reports concerning business operations
• decisions on advance rulings made in MyTax.

Inside information according to the EU regulation on market abuse is not available in MyTax.

The “Managing of tax affairs” authorisation also allows you to search the tax debt register for business operators’ tax debt information. (Everyone can search for tax debts of companies and organisations without an authorisation.)

The authorised party can

• request registration for the VAT special scheme
• take care of tax matters related to the VAT special scheme.

Information available to the authorised party in MyTax

The authorised party can take care of the following tax matters, but only if they are related to the VAT special scheme:

• file, view and edit returns
• view the amount of tax based on the return, the reference number and account number in the return and its PDF printout, but the authorised party cannot see the overall status of taxes or whether the tax has been paid
• respond to information requests
• view reminders concerning returns and information requests and decisions
• see and edit the scheme registration details
• file a notification of termination

The authorised party cannot access

• any information about the authorising party’s other tax matters
• any tax payment status or payment details other than the amount of tax payable based on the special scheme return.

Taking care of matters at the tax office or via the telephone service: The authorisation allows you to access information about the tax returns related to the VAT special scheme, registrations, reminders, decisions, information requests and responses, and the reference number for making the payment.

Taking care of matters by the use of software: The authorised party can request OSS letters on behalf of the authorising party if the software has the Letters, Decisions and Information Requests interface to the Tax Administration.

The authorised party can make and edit requests for VAT refunds submitted to other EU countries and view the messages received on the subject.

Information available to the authorised party in MyTax

The authorised party can take care of all matters related to refund applications. They can:

• file a refund request
• view the status of the request
• read messages and decisions related to refund applications published in MyTax.

The authorised person cannot see the taxpayer’s other tax matters in MyTax, such as tax payment details.

Taking care of matters at the tax office or via the telephone service: The authorisation allows you to access the same information as in MyTax.

Taking care of matters by the use of software: The authorised party can request ALVEU letters on behalf of the authorising party if the software has the Letters, Decisions and Information Requests interface to the Tax Administration.

The authorised party can take care of tax matters related to the taxation of vehicles that are registered or taken into use in Finland for the first time. The authorised party can, for example

• register as a filer of car tax and change registration details
• file car tax returns and respond to requests for further information
• view car tax decisions
• submit price details on new vehicles and view price details
• file declarations of demonstration use
• request car tax refunds
• request for extension of time limit for tourist use
• request a decision on residency for purposes of car tax
• appeal against a decision on car tax.

Taking care of matters at the tax office or via the telephone service: The authorisation allows you to access information on car tax returns, export refund applications and declarations of demonstration use, requests for additional information, car tax decisions and the decision made on the application. Information related to adjustments cannot be accessed.

Taking care of matters by the use of software: The authorised party can request on behalf of the authorising party

• letters related to car taxation if the software has the Letters, Decisions and Information Requests interface to the Tax Administration
• decisions on car tax if the software has the Car Taxation interface to the Tax Administration.

The authorised party can view and update the real estate details used as basis for the authorising party’s real estate taxation. The authorised party can also request extended time for filing a real estate tax return and file a claim for adjustment of real estate tax. In addition, the authorised party can also apply for a temporary real estate tax subsidy for agricultural production buildings.

Taking care of matters at the tax office or via the telephone service: The authorisation allows access to information related to real estate tax, including real estate tax decisions. You cannot access information, letters or decisions related to payments.

Taking care of matters by the use of software: The authorised party can request letters related to real estate tax on behalf of the authorising party if the software has the Letters, Decisions and Information Requests interface to the Tax Administration.

The authorised party can apply for

• refunds of tax at source withheld on dividends, interest or royalties in Finland when the amount withheld has been too high or entirely unwarranted
• a foreign corporation’s tax-at-source card for dividends, interest and royalties to be received from a source in Finland.

This authorisation is used in Ilmoitin.fi.

The “Managing matters concerning excise taxation” authorisation allows the authorised party to take care of the following matters in MyTax:

• file excise duty returns
• submit advance notices and see whether guarantees have been paid or not or whether they have been used
• request refunds of excise duties
• view previous tax decisions and refund decisions concerning excise duties
• request new excise duty authorisations or changes to existing authorisations
• take care of matters related to the register of aid recipients for excise duty (VATU)
• register as liable for excise duty or make changes to registration details.
• take care tax matters that concern the movement of products subject to harmonised excise duty in the Excise Movement and Control System (EMCS).

Taking care of matters via the telephone service: The authorisation allows you to access the same information as in MyTax.

Please note: If you have been granted the “Managing matters concerning excise taxation” authorisation, you can pay guarantees in advance in MyTax but you cannot pay any other excise duties or take care of matters related to payments.

However, you can pay taxes, charges and guarantees in an online bank if you have the relevant details, i.e. the amount of taxes, the account number and the reference number for self-assessed taxes. These details can be requested from the authorising party or from a person who has the “Managing of tax affairs” authorisation. They can check the information in MyTax.

Taking care of matters by the use of software: The authorised party can request letters related to excise taxation on behalf of the authorising party if the software has the Letters, Decisions and Information Requests interface to the Tax Administration.

The Suomi.fi authorisation for EMCS transactions is “Submitting notifications of movements of excise goods”. If you have a previous authorisation for using EMCS for movements of excise products under duty suspension, you do not have to apply for a new authorisation.

The authorised party can manage the authorising party’s tax matters that concern the movement of products subject to harmonised excise duty in the Excise Movement and Control System (EMCS).

The authorisation can be used in MyTax and through software, provided that the software has an EMCS interface with the Tax Administration (Vero API). The authorisation also covers products for which the excise duty has been paid in the country of dispatch.

Taking care of tax matters in the telephone service: You can use the authorisation to take care of similar matters as in MyTax.

The authorisation does not allow the authorised party to send or receive messages from MyTax.

This authorisation does not allow the authorised party to use MyTax.

Instead, it allows the authorised party to use Ilmoitin.fi to submit tax returns and other tax-related reports on behalf of the authorising party. Additionally, this authorisation allows you to search the tax debt register for business operators’ tax debt information. (Everyone can search for tax debts of companies and organisations without an authorisation.)

Please note that Ilmoitin.fi does not include all tax returns. Additionally, Ilmoitin.fi allows you to submit returns only as files generated by accounting software. The file must adhere to the data file specification.

Example: If you cannot submit the VAT return as a file, you need the “Managing of tax affairs” authorisation to file the return in MyTax.

Taking care of matters at the tax office or via the telephone service: The authorisation does not give you access to an individual’s tax information.

If you have an underage child, you can take care of their tax matters by logging in to MyTax and selecting the option “Act on behalf of someone else”. As a guardian, you do not need a separate Suomi.fi authorisation.

You can take care of your underage child’s tax matters even if you yourself have a guardian. However, you cannot act on behalf of your underage child if you do not have full legal capacity yourself.

Exceptions:

• If a child has a non-disclosure order for personal safety reasons, their guardians cannot act on their behalf.
• If all the guardians of a child have a non-disclosure order for personal safety reasons, none of them can act on behalf of the child.
• If only one of the guardians has a non-disclosure order for personal safety reasons, only the guardian with the non-disclosure order can act on behalf of the child.

These terms are in place to protect information covered by non-disclosure.

If none of the guardians can act on behalf of the child, a separate Suomi.fi authorisation is needed, and each guardian must accept the authorisation. For more information, see Suomi.fi: Using a mandate to act on behalf of a child

If you want to enable another person to take care of your personal tax matters on your behalf, grant them an authorisation on Suomi.fi.

If you do not have personal e-bank codes, a mobile certificate or a certificate card, go to Suomi.fi and read the instructions: Granting mandates if you are unable to use electronic services

If you have a guardian, you can grant someone else the “Managing of tax affairs” authorisation. However, this authorisation cannot be used to report or change the bank account number in MyTax, because a person under guardianship cannot authorise another person to manage their bank account matters. You can also grant limited authorisations for specific tax matters, such as real estate taxes.

Grant an authorisation on Suomi.fi

1. Go to Suomi.fi and log in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Personal mandates.
3. Select Grant mandates.
4. Enter the name of the assignee, i.e. the party being authorised. Click Add a person. Enter the name and personal ID of the person who will take care of your tax matters.
   • Assignor is the party that authorises another party to act on their behalf.
   • Assignee is the person authorised to act on the other person’s behalf.
5. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes).
6. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – however, if you have activated Suomi.fi messages, you will receive a reminder of any authorisations ending soon.
7. Confirm the authorisation.
8. The assignee, i.e. the authorised person, can now log in to MyTax and take care of your tax matters on your behalf by selecting the option “Act on behalf of someone else”.

Instructions on Suomi.fi: How to grant mandates independently to manage your own affairs (opens in a new tab)

If you want to enable a company or organisation to take care of your personal tax matters on your behalf, grant an authorisation on Suomi.fi.

If you do not have personal e-bank codes, a mobile certificate or a certificate card, go to Suomi.fi and read the instructions: Granting mandates if you are unable to use electronic services

If you have a guardian, you can grant a company or organisation the “Managing of tax affairs” authorisation. However, this authorisation cannot be used to report or change the bank account number in MyTax, because a person under guardianship cannot authorise another person to manage their bank account matters. You can also grant limited authorisations for specific tax matters, such as real estate taxes.

Grant an authorisation on Suomi.fi

1. Go to Suomi.fi and log in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Personal mandates.
3. Select Grant mandates.
4. Enter the name of the assignee, i.e. the party being authorised. Click Add a company. Enter the name or Business ID of the company or organisation that will take care of your tax matters.
   • Assignor is the party that authorises a company or organisation to act on their behalf.
   • Assignee is the company or organisation whose representative is authorised to act on the other person’s behalf.
5. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes).
6. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – however, if you have activated Suomi.fi messages, you will receive a reminder of any authorisations ending soon.
7. Confirm the authorisation.
8. A representative of the authorised company or organisation can now log in to MyTax and take care of your tax matters on your behalf by selecting the option “Act on behalf of someone else”.

Instructions on Suomi.fi: How to grant mandates independently to manage your own affairs (opens in a new tab)

You can request authorisation from a person whose tax matters you wish to manage. You will need to give the assignee’s first name, last name and personal ID in the request.

These instructions are only intended for requesting authorisation to use MyTax. If you need authorisation for other matters beyond taxes, submit an authorisation application on Suomi.fi e-Authorizations. Instructions on Suomi.fi: How to request mandates as a person

The party granting the authorisation must accept the authorisation request. In order to do this, they must log in to the Suomi.fi e-Authorizations service. If the party granting the authorisation cannot use e-services, see the instructions on Suomi.fi: Granting mandates if you are unable to use electronic services

How to request an authorisation in MyTax

1. Log in to MyTax (opens in a new tab)
2. After logging in to MyTax, select Act on behalf of someone else.
3. Select Go to e-Authorizations.
4. Click Request mandates.
5. On the “Requesting mandates” page, select Make a mandate request.
6. Select Continue to service.
7. Stage 1: Parties
   • Assignee is you, so the details in the “Assignee” section are your details.
   • Assignor is the party from whom you are requesting authorisation and whose tax matters you wish to manage. Add the assignor’s details in the “Add the assignors” section. Enter the person’s name and personal ID.
   • Click Add.
   • You can see the assignor’s details you have added in the “Added parties” section.
8. Stage 2: Mandate themes
   • In this stage, select the authorisation or authorisations you wish to request from the assignor.
   • All the mandates that allow you to access MyTax have been pre-selected. Select the mandates you need. The Managing of tax affairs authorisation allows you take care of all the authorising party’s tax matters. When you select the mandate you need, you will see a more detailed description of what kinds of matters the mandate authorises you to manage.
9. Stage 3: Selected mandate themes
   • In this stage, you can see the authorisations you are requesting.
   • If you want to make changes, you can return to an earlier stage.
10. Stage 4: Validity
    • Select the period of time during which the authorisation is in force. The suggested period of validity is 5 years. An authorisation can be valid for up to 25 years.
    • Please note that the authorisation will end automatically on the day you select. If you have activated Suomi.fi Messages, you will receive a message from the service when the period of validity is ending. Otherwise you will not receive a separate reminder. Make sure to renew the authorisation before its period of validity ends if necessary.
11. Stage 5: Summary and validation
    • Check that the details you entered are correct. If there are errors in the details, go back to the previous stages to correct the information.
    • Finally, click Validate mandate request. The request will be sent for approval to the party from whom you have requested the authorisation.

Ask the assignor to accept your authorisation request

1. Ask the authorising person to log in to the Suomi.fi e-Authorizations service and accept your request there. Go to the Suomi.fi e-Authorizations service
   If the authorising person has activated Suomi.fi Messages, they will receive a message from the service saying that they have been sent a mandate request for approval.
2. If the person granting an authorisation is unable to identify themself electronically, they can book an appointment at a service location of the Digital and Population Data Services Agency (DVV), where they can approve the authorisation request. Read instructions on Suomi.fi: Approving a mandate request as a person

After the authorising person has accepted the mandate request, the authorisation is valid and you can take care of the authorising person's tax matters in MyTax. If you have activated Suomi.fi Messages, you will receive a message from the service after the mandate request you sent has been accepted.

If your continuing power of attorney to act as someone else’s guardian has been confirmed, or if you are registered as a private guardian, you do not need a separate Suomi.fi authorisation to use e-services. Log in to MyTax and select “Act on behalf of someone else”. You can manage your client’s tax matters and also submit or change their bank account number in MyTax. Please note that this does not apply to public guardians.

In the following situations, however, you will need a separate Suomi.fi authorisation from the person on whose behalf you are acting in MyTax:

• A private guardian or a person with a continuing power of attorney to act as guardian is not entitled to represent the person under their guardianship alone.
• Your right to manage financial affairs concerns a certain part of the property, or your jurisdiction is otherwise limited.

See more detailed instructions relevant to your situation:

• If you have a private guardian or you have granted someone a continuing power of attorney to act as your guardian, read the instructions in the section You are authorising another person.
• If you are a private guardian or someone has granted you a continuing power of attorney to act as their guardian, read the instructions in the section You are requesting an authorisation from another person.

Instructions on Suomi.fi:

Acting on behalf of a granter of a continuing power of attorney

Acting on behalf of a person as their guardian

If you are foreign individual and you have

1. a Finnish personal ID and a Finnish identification method: you can grant and receive Suomi.fi authorisations – see the instructions for authorising another individual, authorising a company or organisation, or requesting authorisation from someone else.
2. a Finnish personal identity code and a Finnish proof of ID, but no electronic identification method: you can grant a Suomi.fi authorisation by submitting an application on Suomi.fi.
3. a registered UID and the Finnish Authenticator app: you can receive a Suomi.fi authorisation and act as a representative, but only on the behalf of a company.

If you do not have a Finnish personal ID or a Finnish method of identification:

• You can log in to MyTax with eIDAS identification to manage certain personal tax matters or to submit a contact form.
  • Reporting, requesting and correcting information in MyTax in a limited scope
  • Using MyTax as a foreign individual
• Otherwise you must take care of any tax matters by filing paper forms available on vero.fi
• You cannot take care of another individual’s tax matters.

These instructions are for limited companies, housing companies, cooperatives, limited partnerships and general partnerships.

You do not need a Suomi.fi authorisation if all of the following apply to you:

1. You have a Finnish personal ID.
2. You have a Finnish means of identification, i.e. personal e-bank codes, a mobile certificate or a certificate card.
3. Your name and personal ID are recorded in the Trade Register with one of the following roles in the company or organisation:
   • Managing Director, Managing Director’s substitute, or Deputy Managing Director
   • Chair of the Board
   • member of the Board with the right to sign for the company or organisation alone
   • liquidator
   • building manager or full-time building manager
   • self-employed business operator (registration as private trader in the Business Information System is enough)
   • general partner
   • holder of procuration
   • auditor
   • other individual with the right to sign for the company or organisation alone

If you have a guardian: Generally, you can take care of your own company’s tax matters based on the information found in the Trade Register, for example.

If your role does not directly enable you to take care of the company’s or partnership’s matters, see the instructions for authorisation relevant to your circumstances.

Instructions on Suomi.fi: Acting on behalf of a Finnish company or self-employed person without a separate mandate

These instructions are for limited companies, housing companies, cooperatives, limited partnerships and general partnerships.

Please note that your personal ID and your right to sign must be recorded in the Trade Register. You will also need personal e-bank codes, a mobile certificate or a certificate card for identification.

If you have the right to sign for the organisation but your personal ID is not in the Trade Register, first make the correction in the Trade Register. After the information in the Trade Register is correct, you can grant a Suomi.fi authorisation following these instructions. Read the instructions for companies on the Suomi.fi page How a representative of an organisation grants mandates alone

If the party with the right to sign for the organisation does not have a Finnish personal ID or a Finnish method of identification, see the instructions for representatives of a foreign company and foreign individuals with the right to sign for a Finnish company.

If you are unsure whether or not you can authorise others on the company’s behalf, check on Suomi.fi: How a representative of an organisation grants mandates alone

Grant an authorisation on Suomi.fi

1. Go to Suomi.fi and log in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Company's mandates. Then select the company or cooperative society on whose behalf you wish to grant authorisations.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the name of the assignee, i.e. the party being authorised.
   • Assignor is the company, partnership or organisation that authorises another company or individual to manage their tax matters on their behalf.
   • Assignee is the person or company authorised to act on the company, partnership or organisation’s behalf.
6. Select the Suomi.fi authorisation or authorisations you wish to grant for the managing of tax affairs (mandate themes).
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation.
   • If you have the right to grant the authorisation alone, the authorisation will enter into effect immediately.
   • If several authorising parties are required, the authorisation will enter into effect once everyone has confirmed the authorisation in the Suomi.fi service. For more detailed instructions, see Suomi.fi: Granting mandates jointly
9. The authorised party can log in to MyTax, for example, and take care of the authorising party’s tax matters. When logging in, the authorised party must select the option “Act on behalf of a company”.

Authorised agents who have logged in to MyTax to handle their client’s affairs cannot change the account number of limited companies or public limited companies. Individuals with the required official role recorded in the Trade Register can make changes to account numbers on behalf of companies and cooperatives.

These instructions are intended for the following situations:

• The company is bankrupt, in liquidation or being restructured.
• The company has ended its operations.

Please note that a mandate to represent cannot be used after the company taking care of another company’s matters has been listed as bankrupt or in liquidation in the Business Information System (ytj.fi). However, if the person’s work tasks involve taking care of another company’s tax matters, do as follows: The other company, i.e. the client company, grants the estate a mandate for transactions on Suomi.fi e-Authorizations. After this, the bankruptcy estate will grant the person a mandate to represent. This will allow the person to take care of another company’s tax matters.

If the company is bankrupt or in liquidation, the company must first request the right to grant authorisations for at least one person. The right to grant a mandate enables the person in question to authorise an accounting firm or other such party to represent the company. It is recommended that the right to grant a mandate is assigned to a person who has personal e-bank codes, a mobile certificate or a certificate card for electronic identification.

If the company has ended its operations, the company can only request a mandate for transactions. A mandate for transactions authorises another party to take care of the company’s matters electronically.

The assignee, i.e. the recipient of the mandate for transactions, will also need personal e-bank codes, a mobile certificate or a certificate card for electronic identification.

1. Make a request for authorisation

Apply for an authorisation in the Suomi.fi e-service. Log in to the service before you start filling in the application, so that the application will be saved automatically.

These instructions will remain open in another tab when you click a link to Suomi.fi. You can refer back to these instructions while you fill in the application.

First, read section 1 of the Suomi.fi page to see what attachments are required for the application and what other requirements there are. After that, submit the application in section 2.

Go to the Suomi.fi page Authorisation with an application (opens in a new tab)

Instructions for filling in the authorisation application

1. Stage 1/10 Assignor:
   • Select “Finnish company or organisation with a Business ID”.
   • Answer “Yes” to the question of whether to company or organisation is in the Finnish Trade Register.
2. Stage 2/10 Assignor’s status:
   • Select whether the company is in liquidation, is being restructured, is bankrupt or has stopped operation.
   • Specify who will sign the application. Select the option stating that the signatory is a person authorised to represent the assignor.
3. Stage 3/10 Assignor’s details:
   • Enter the company’s Business ID.
   • Enter the company’s name.
4. Stage 4/10 Mandate type:
   1. When the company is bankrupt, in liquidation or being restructured: Select “Right to grant a mandate”. Having a right to grant a mandate means that after the right has been registered by the Digital and Population Data Services Agency (DVV), the person with the right can authorise other parties – including themself – to act on the company’s behalf in official matters.
   2. When the company has ended its operations: The only possible selection is “Mandate for transactions”. A mandate for transactions means a Suomi.fi authorisation that allows the authorised party to take care of the company’s affairs in practice. For example, the “Managing of tax affairs” authorisation provides access to MyTax. When someone in the company has the right to grant authorisations, they can grant an authorisation for managing tax matters in the Suomi.fi e-Authorizations service.
5. Stage 5/10 Assignee: If you selected the right to grant mandates in the previous stage, continue to the next stage. If you are granting a mandate for transactions, specify whether the assignee is an individual or a company or other organisation.
6. Stage 6/10 Assignee’s details:
   • If the assignee is an individual: Select “Finnish personal identity code” as the identifier type. Enter the personal ID, first name and last name of the individual in question.
   • If the assignee is a company: Select as the organisation’s identifier either a Finnish Business ID or a VAT number or corporate ID in the country of registration. Enter the company’s details.
   • Select “Add as an assignee”.
   • At this stage, add all the persons who are being authorised. After all the details have been entered, remember to click “Add as an assignee”.
7. Stage 7/10 Mandate themes: You can filter the mandate themes by a search word, such as “mytax” or “tax affair”. Select all the themes relating to the matters that you wish the authorised representative to manage on the company’s behalf.
   • The Managing of tax affairs authorisation allows the authorised party to take care of all the company’s tax matters in the Tax Administration’s e-services.
   • The Filing of tax returns and other reports authorisation does not provide access to MyTax.
   • Note that in this situation you are not required to use a mandate specifier. This is why you will move directly from stage 7 to stage 9 of the application.
8. Stage 9/10 Validity:
   • Select the start and end date of the right to grant authorisations. Note that you will have to remember to renew the right to grant authorisations yourself if it is still needed after the end date – there is no automatic reminder.
   • If the company has ended its operations, the mandate for transactions can be valid for no more than 1 year.
9. Stage 10/10 Mandate details: Check that the information is correct. Make corrections if necessary. After this stage, you can no longer make changes to the application.
10. Continue to finish the application:
    • If you have not yet logged in to the Suomi.fi e-service, you can identify yourself with your e-bank codes or other such method of identification and finish the application.
    • Answer the question of whether any of the signatories have a guardian.
    • Click the button to add yourself as a signatory. If there are any other signatories, add the required details for the signatories and specify how each of them will sign the application – by hand, or by logging in to Suomi.fi with their e-bank codes or other such identification method. You must include each signatory’s personal ID and specify what kind of identification will be used by those who will sign the application by hand.
    • After you have added each signatory, lock them and confirm the application by clicking the toggle switch. Select the application’s method of delivery. Add your email address to the contact details and read the instructions for delivering the application.
    • When the company has ended its operations: After the mandate for transactions has been registered and the application is accepted, you will receive an email fromthe Digital and Population Data Services Agency (DVV). After this, the assignee can act on the behalf of the company.
    • When the company is bankrupt, in liquidation or being restructured: After the right to grant authorisations has been registered and the application is accepted, you will receive an email from the Digital and Population Data Services Agency (DVV). After this, you can grant yourself or someone else a mandate for transactions in the Suomi.fi e-Authorizations service.
    • You can check the estimated processing time of the application on the Suomi.fi page Authorisation with an application

2. Grant a mandate for transactions to the party that will take care of the company’s matters

Note: These instructions are for companies that are bankrupt, in liquidation or being restructured.

1. After you have received a message from the DVV informing you that the right to grant a mandate has been registered, you can grant the mandate for transactions: go to Suomi.fi and log in to the e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Company's mandates. Then select the company on behalf of which you are granting authorisations.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the details of the assignee, i.e. the party being authorised to take care of the matters in question, such as an accounting firm or another individual.
   • Assignor is the company that authorises a certain person or another company to act on the company’s behalf.
   • Assignee is the person or company authorised to act on the other company’s behalf.
6. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes) concerning which you have received the right to grant authorisations.
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation.
9. After this, the assignee authorised to represent the company can use MyTax on the benefit’s behalf by selecting “Act on behalf of a company” after logging in to the e-service.

These instructions are intended for the following situations:

• The company is authorising an accounting firm or other such party to manage its tax matters.
• One or more foreign persons have the right to sign for the company.

If the foreign company already has a Business ID, use it when requesting Suomi.fi authorisations.

1. Before you start filling in the authorisation application

• Reserve enough time for making the application.
• You will need the following information in order to complete the application:
  • A Trade Register extract or, if the company is not in the Finnish Trade Register, other document proving that you have the right to act on the company’s behalf. This must be the original, certified version of the document.
  • A copy of each signatory’s valid passport or identity card. The copy must be an original and certified copy.
  • See more detailed instructions on dvv.fi: Mandate service provided by officials: Notarisation of foreign documents

2. Submit an application with which you request a mandate for transactions

Before you start filling in the form

• Determine what type of authorisation you will need: There are different types of Suomi.fi authorisations for different situations. The “Managing of tax affairs” authorisation allows the representative to take care of all of the company’s tax matters. The “Filing of tax returns and other reports” authorisation, on the other hand, does not allow the representative to use MyTax but does allow them to file tax returns on the company’s behalf.
• You can use the application to directly request a mandate for transactions. A mandate for transactions means a Suomi.fi authorisation that allows the authorised party to take care of the company’s affairs in practice.
• When you are requesting a mandate for transactions to another party, you cannot manage the granted mandate on your own on Suomi.fi e-Authorizations. If the authorisation needs to be invalidated later, an invalidation request must be submitted on Suomi.fi: Authorisation with an application
• If you want to use MyTax for yourself or manage the company’s authorisations on the Suomi.fi e-Authorizations service, see the instructions under “You are a non-Finnish individual and you are taking care of the company’s matters yourself”.
• Apply for an authorisation in the Suomi.fi e-service. These instructions will remain open in another tab when you click a link to Suomi.fi. You can refer back to these instructions while you fill in the application.

Instructions for filling in the authorisation application

Go to the Suomi.fi page Authorisation with an application (opens in a new tab)

First, read section 1 of the Suomi.fi page to see what attachments are required for the application and what other requirements there are. After that, submit the application in section 2.

1. Stage 1/10 Assignor:
   • Select the option that corresponds to your company. Note! If the foreign company has a Business ID, use it when requesting Suomi.fi authorisations.
     • “Finnish company or organisation with a Business ID”
     • “Foreign company or organisation with a Finnish Business ID”
     • “Foreign company without a Finnish Business ID”
2. Stage 2/10 Assignor’s status:
   • Select the option stating that the signatory is a person authorised to represent the assignor.
3. Stage 3/10 Assignor’s details:
   • If you selected the option “Finnish company or organisation with a Business ID” or “Foreign company or organisation with a Finnish Business ID” in stage 1:
     • Enter the company’s Business ID.
     • Enter the company’s name.
   • If you selected the option “Foreign company without a Finnish Business ID” in stage 1:
     • Select the country code according to the company’s country of residence.
     • Enter company’s VAT number or its corporate ID in the country of registration.
     • Enter the assignor’s name, i.e. the company whose authorisations the application concerns.
4. Stage 4/10 Mandate type: Select “Mandate for transactions”. A mandate for transactions means a Suomi.fi authorisation that allows the authorised party to take care of the company’s affairs in practice. For example, the “Managing of tax affairs” authorisation provides access to MyTax.
5. Stage 5/10 Assignee: Select whether the company is authorising a person or another company or organisation.
6. Stage 6/10 Assignee’s details:
   • If you are authorising an individual: If the assignee has a Finnish personal ID, select “Finnish personal identity code” as the identifier type. Otherwise, select “foreigner’s identifier”. Enter the ID and the individual’s name.
   • If you are authorising a company: Select as the identifier type either a Finnish Business ID or a VAT number or corporate ID in the country of registration. Enter the identifier and the organisation’s name.
   • Select “Add as an assignee”.
7. Stage 7/10 Mandate themes: You can filter the mandate themes by a search word, such as “mytax” or “tax affair”. Select all the themes relating to the matters that you wish the authorised representative to manage on the company’s behalf. If you select the “Managing of tax affairs” authorisation, the authorised party can take care of all of the company’s tax matters. The “Filing of tax returns and other reports” authorisation does not provide access to the MyTax e-service. Note that in this situation you are not required to use a mandate specifier. This is why you will move directly from stage 7 to stage 9 of the application.
8. Stage 9/10 Validity: An authorisation granted with a UID can be valid for up to 3 years. An authorisation granted with a personal ID or Business ID can be valid for up to 25 years. Select the start and end date of the mandate for transactions. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
9. Stage 10/10 Mandate details: Check that the information is correct. Make corrections if necessary. After this stage, you can no longer make changes to the application.
10. Continue to finish the application:
    • Answer the question of whether any of the signatories have a guardian.
    • Click the button to add yourself as a signatory. If there are any other signatories, add their details. You must include each signatory’s name and date of birth and specify what kind of identification will be used by those with the right to sign who will sign the application by hand.
    • After you have added each signatory, lock them with the toggle switch. Select the application’s method of delivery. Add your email address to the contact details and read the instructions for delivering the application.
    • Download the application to be signed and print it.
    • Sign the application. If there are other signatories, ask them to sign the application as well.
    • Send the following documents by post:
      • signed authorisation application
      • a copy of a trade register extract – if the company is not listed in the Finnish Trade Register – confirmed as valid by the relevant authority
      • copies of the signatories’ passports or identity cards confirmed as valid by the relevant authority
      • other required attachments.
    • See more detailed instructions on dvv.fi: Mandate service provided by officials: Notarisation of foreign documents
    • After the mandate for transactions has been registered and the application is accepted, you will receive an email from the Digital and Population Data Services Agency (DVV). You can check the estimated processing time of the application on the Suomi.fi page Authorisation with an application

3. The assignee can manage the company’s tax matters electronically

After you have been notified that the mandate for transactions is registered, let the assignee (i.e. the authorised party) know.

The assignee authorised to represent the company can use the Tax Administration’s MyTax e-service on the benefit’s behalf by selecting “Act on behalf of a company” after logging in to the e-service.

Go to MyTax

Information on MyTax

As a foreign individual, you can take care of the company’s tax matters in MyTax or authorise someone else to take care of them. These instructions are for you if you are a foreign individual with the right to sign for a Finnish or foreign company and you are taking care of the company’s tax matters in Finland.

If you do not have a Finnish personal ID or a Finnish method of identification, you will need the following to use e-services:

• a UID (foreign individual’s unique identifier) and the Finnish Authenticator app for electronic identification
• a Suomi.fi authorisation.

The representative must request the UID and the Suomi.fi authorisation separately following these instructions. If the foreign company already has a Business ID, use it when requesting Suomi.fi authorisations.

Note! A Suomi.fi authorisation granted to a foreign assignee can be valid for up to 3 years. After 3 years, the authorisation has to be requested and granted again, if necessary.

1. Before you start filling in the authorisation application

• Reserve enough time for making the application.
• You will need the following information in order to complete the application:
  • A Trade Register extract or, if the company is not in the Finnish Trade Register, other document proving that you have the right to act on the company’s behalf. This must be the original, certified version of the document.
  • A copy of each signatory’s valid passport or identity card. The copy must be an original and certified copy.
  • See more detailed instructions on dvv.fi: Mandate service provided by officials: Notarisation of foreign documents
  • A UID (foreign individual’s unique identifier) and the Finnish Authenticator app for accessing the services.

2. Register your UID (foreign individual’s unique identifier)

You need a UID and the Finnish Authenticator app to request Suomi.fi authorisations and to log in to e-services, such as MyTax.

• If you have a Finnish personal ID and a Finnish method of identification, you do not need to request a foreign individual’s unique identifier. Move on to step 3 of these instructions.
• Register in the foreign individual’s e-identification service to get your personal UID. Read the instructions on Suomi.fi: Activation of the Finnish Authenticator application
• Go to the app store on your smartphone and download the Finnish Authenticator app.
• You can identify yourself to the Finnish Authenticator app by submitting a photo of your face (selfie) and a photo of a proof of ID, such as your passport or official identity card. Note! The identification must be fully completed before you can request Suomi.fi authorisation.
• When you receive a notification that your Finnish Authenticator can now be used for identity authentication, you can request Suomi.fi authorisation.

3. Submit an application with which you request the right to grant authorisations

Before you start filling in the form

• Determine what type of authorisation you will need: There are different types of Suomi.fi authorisations for different situations. The “Managing of tax affairs” authorisation allows you to take care of all of the company’s tax matters. The “Filing of tax returns and other reports” authorisation, on the other hand, does not allow you to use MyTax but does allow you to file tax returns on the company’s behalf.
• The authorisation request can concern either a right to grant a mandate or a representative’s right to grant a mandate.
  • A right to grant a mandate must be requested for the matters that the company must take care of using the e-services. The right of authorisation can be registered to one or multiple individuals. Individuals with the right to grant authorisations can log in to the Suomi.fi authorisation service and grant an authorisation either to themselves or to a company employee or an accounting firm. For example, the authorisation can allow the authorised party to use Tax Administration e-services on the company’s behalf.
  • Representative’s right to grant a mandate can be requested for an individual who represents a company or organisation that has been authorised by another individual, company or organisation. When an individual has the representative’s right to grant authorisations, they can grant authorisations to other individuals to act on the behalf of the company or organisation that they represent. These individuals can then act in the name of the company or organisation they represent to take care of matters on the behalf of the party that authorised their company or organisation.
  • Apply for an authorisation in the Suomi.fi e-service. These instructions will remain open in another tab when you click a link to Suomi.fi. You can refer back to these instructions while you fill in the application.

Instructions for filling in the authorisation application

Go to the Suomi.fi page Authorisation with an application (opens in a new tab)

First, read section 1 of the Suomi.fi page to see what attachments are required for the application and what other requirements there are. After that, submit the application in section 2.

1. Stage 1/10 Assignor:
   • Select the option that corresponds to your company. Note! If the foreign company has a Business ID, use it when requesting Suomi.fi authorisations.
     • “Finnish company or organisation with a Business ID”
     • “Foreign company or organisation with a Finnish Business ID”
     • “Foreign company without a Finnish Business ID”
2. Stage 2/10 Assignor’s status:
   • Select the option stating that the signatory is a person authorised to represent the assignor.
3. Stage 3/10 Assignor’s details:
   • If you selected the option “Finnish company or organisation with a Business ID” or “Foreign company or organisation with a Finnish Business ID” in stage 1:
     • Enter the company’s Business ID.
     • Enter the company’s name.
   • If you selected the option “Foreign company without a Finnish Business ID” in stage 1:
     • Select the country code according to the company’s country of residence.
     • Enter company’s VAT number or its corporate ID in the country of registration.
     • Enter the assignor’s name, i.e. the company whose authorisations the application concerns.
4. Stage 4/10 Mandate type: Select “Right to grant a mandate”.
   • Having a right to grant a mandate means that after the right has been registered by the Digital and Population Data Services Agency (DVV), you can authorise other parties – including yourself – to act on the company’s behalf in official matters.
   • A mandate for transactions means a Suomi.fi authorisation that allows the authorised party to take care of the company’s affairs in practice. For example, the “Managing of tax affairs” authorisation gives you access to MyTax. When you have the right to grant authorisations, you can grant an authorisation for managing tax matters in the Suomi.fi e-Authorizations service.
5. Stage 5/10 Assignee: Proceed to the next stage.
6. Stage 6/10 Assignee’s details:
   • If you have a Finnish personal ID, select “Finnish personal identity code” as the identifier type. Otherwise, select “foreigner’s identifier”.
   • Enter your personal ID or UID, first name and last name. This section is for the personal ID and name of the person whose right to grant authorisations the application concerns.
   • Select “Add as an assignee”.
   • At this stage, only enter the details of individuals for whom you are requesting the right to grant mandates. After all the details have been entered, remember to click “Add as an assignee”.
7. Stage 7/10 Mandate themes: You can filter the mandate themes by a search word, such as “mytax” or “tax affair”. Select all the themes relating to the matters that you wish the authorised representative to manage on the company’s behalf. If you select the “Managing of tax affairs” authorisation, the authorised party can take care of all of the company’s tax matters. The “Filing of tax returns and other reports” authorisation does not provide access to the MyTax e-service. Note that in this situation you are not required to use a mandate specifier. This is why you will move directly from stage 7 to stage 9 of the application.
8. Stage 9/10 Validity: An authorisation granted with a UID can be valid for up to 3 years. An authorisation granted with a personal ID can be valid for up to 25 years. Select the start and end date of the right to grant authorisations. Note that you will have to remember to renew the right to grant authorisations yourself if it is still needed after the end date – there is no automatic reminder.
9. Stage 10/10 Mandate details: Check that the information is correct. Make corrections if necessary. After this stage, you can no longer make changes to the application.
10. Continue to finish the application:
    • Answer the question of whether any of the signatories have a guardian.
    • Click the button to add yourself as a signatory. If there are any other signatories, add their details. You must include each signatory’s name and date of birth and specify what kind of identification will be used by those with the right to sign who will sign the application by hand.
    • After you have added each signatory, lock them with the toggle switch. Select the application’s method of delivery. Add your email address to the contact details and read the instructions for delivering the application.
    • Download the application to be signed and print it.
    • Sign the application. If there are other signatories, ask them to sign the application as well.
    • Send the following documents by post:
      • signed authorisation application
      • a copy of a trade register extract – if the company is not listed in the Finnish Trade Register – confirmed as valid by the relevant authority
      • copies of the signatories’ passports or identity cards confirmed as valid by the relevant authority
      • other required attachments.
    • After the right to grant authorisations has been registered and the application is accepted, you will receive an email from the Digital and Population Data Services Agency (DVV). You can check the estimated processing time of the application on the Suomi.fi page Authorisation with an application
    • After the authorisation application has been accepted, you can grant yourself or someone else a mandate for transactions in the Suomi.fi e-Authorizations service.

4. Grant a mandate for transactions to the party that will take care of the company’s matters

After you have received a message from the Digital and Population Data Services Agency (DVV) informing you that the right to grant a mandate has been registered, you can manage the company’s mandates and authorise other parties in the Suomi.fi e-Authorizations service. You can grant the mandate for transactions concerning the company’s tax matters to yourself. You can also grant the mandate for transactions to another person with a Finnish personal ID or a UID. You can also grant the mandate for transactions to an accounting firm.

1. Use the Finnish Authenticator application to log in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Company's mandates. Then select the company on behalf of which you are granting authorisations.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the details of the assignee, i.e. the party being authorised to take care of the matters in question, such as yourself, another individual, or an accounting firm.
   • Assignor is the company that authorises a certain person or another company to act on the company’s behalf.
   • Assignee is the person or company authorised to act on the other company’s behalf.
6. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes) concerning which you have received the right to grant authorisations.
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder. An authorisation granted to a foreign assignee can be valid for up to 3 years.
8. Confirm the authorisation.

5. Use e-services for tax matters

The assignee authorised to represent the company can use the Tax Administration’s MyTax e-service on the benefit’s behalf by selecting “Act on behalf of a company” after logging in to the e-service. Once you have the Finnish Authenticator app and a Suomi.fi authorisation, you can log in to MyTax to manage the company’s tax matters.

Go to MyTax

Information on MyTax

If you are, for example, the managing director of the accounting firm or otherwise authorised to sign for the company, you can grant the following authorisations on Suomi.fi:

• a representative’s right to grant a mandate to a person who will from now on manage the accounting firm’s mandates – i.e. the person who will be able to authorise the firm’s accountants, check the mandates for transactions granted by the firm’s clients, and request authorisations from the clients
• a mandate to represent to an accountant, which enables them to manage the client company’s matters according to the mandates granted by the client to the accounting firm.

When you authorise someone else to represent you, remember to select the appropriate themes relevant for the matters the accountant is taking care of on the client’s behalf – such as “Managing of tax affairs”.

Read more detailed instructions on Suomi.fi: How an organisation grants its employees mandates to take care of a customer's affairs

Accounting firms can use mandate specifiers to restrict the scope of authorisations as necessary. Mandate specifiers can be used to define which client company’s tax matters an accountant can access in MyTax. For more information, see Suomi.fi: Granting mandates as an organisation, section “What are mandate specifiers and what are they used for?”.

Go to the Suomi.fi e-Authorization service

Examples of organisational authorisations

If you need authorisation to take care of another person’s, a company’s or an organisation’s tax matters electronically, you can request an authorisation on Suomi.fi.

1. Request a mandate for transactions on Suomi.fi

1. Go to Suomi.fi and log in to the Suomi.fi e-Authorizations service (opens in a new tab)
   • You need personal e-bank codes, a mobile certificate or a certificate card.
2. Select Company's mandates.
3. First, select the company or organisation on whose behalf you are requesting authorisation. For example, if you are an accountant, you represent an accounting firm and must therefore select the accounting firm at this point. Click Select and go to the e-service.
4. The e-service opens on the “Granted mandates” page. Select the link Request mandates.
5. Stage 1: Parties
   • If the assignee is a company, organisation, self-employed individual, agricultural operator or forestry operator, request the authorisation with a Business ID. Click Add a company. Select one of the following:
     • Finnish Business ID
     • VAT ID or foreign business ID.
   • If the party granting the authorisation is a private individual, select Add a person.
   • Add the assignor’s details, i.e. the details of the party from whom you are requesting authorisation. If you are requesting authorisation from an agricultural operator or other such party, select “Finnish Business ID” and search for the assignor’s details by using their name or Business ID.
   • You can see the assignor’s details you have added in the “Added parties” section.
6. Stage 2: Mandate themes
   • In this stage, select the authorisation or authorisations you wish to request from the assignor. You can search for mandates by using the search function.
     • If you select the Suomi.fi authorisation (mandate themes) called Managing of tax affairs, it authorises you to take care of all of your client’s tax matters in MyTax.
     • If you select the Filing of tax returns and other reports mandate, you can file the required tax returns electronically on Ilmoitin.fi but you cannot use MyTax.
   • When you select the mandate you need, you will see a more detailed description of what kinds of matters the mandate authorises you to manage. If you need multiple mandates from the same assignor, you can search for them individually with the search function and select the ones you wish to add.
7. Stage 3: Selected mandate themes
   • In this stage, you can see the authorisations you are requesting.
   • If you want to make changes – add more mandates, for example – you can return to an earlier stage.
8. Stage 4: Validity
   • Select the period of time during which the authorisation is in force. The suggested period of validity is 5 years.
   • Please note that the authorisation will end automatically on the day you select. There will be no separate reminder of the upcoming end date. Make sure to renew the authorisation before its period of validity ends if necessary.
9. Stage 5: Summary and validation
   • Check that the details you entered are correct.
   • Finally, click Validate mandate request. The request will be sent for approval to the party from whom you have requested the authorisation.
10. Ask the client to accept your authorisation request. The mandate request is in force for a limited time. Make sure that the request is approved or rejected as soon as possible. After the authorising party has accepted the mandate request, the authorisation enters into force immediately. Go to “Sent requests” to see the requests you have sent and cancel them if necessary.

2. Ask the client to accept your authorisation request

1. The client has personal e-bank codes, a mobile certificate or a certificate card
   • If the client has personal e-bank codes, a mobile or card certificate, ask the client to log in to Suomi.fi and accept your request.
   • If the client is a company, its Articles of Association determine who have the right to sign for the company and who therefore need to accept your request for authorisation.
   • Suomi.fi e-Authorization service
   • Instructions on Suomi.fi: Approving a mandate request as an organisation
   • Instructions on Suomi.fi: Approving a mandate request as a person
2. The client cannot use electronic means of identification
   • If your client does not have personal e-bank codes, a mobile certificate or a certificate card, they can approve the mandate request by booking an appointment with the Digital and Population Data Services Agency (or at the Åland Islands tax office).
   • Ask the client to bring a passport, photo ID card, driving licence or some other identification with a photo with them to the appointment. The person must be identifiable from the photo.
   • Book an appointment with the Digital and Population Data Services Agency (DVV)
   • If your client is a company or organisation that cannot accept your mandate request, see the instructions on Suomi.fi: Approving a mandate request as an organisation

Remember to also make sure that internal authorisations at the accounting firm or other organisation acting on behalf of another party are in order. See the instructions under “Accounting firm authorising accountants”.

Grant an authorisation on Suomi.fi

1. Go to Suomi.fi and log in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After logging in, select Company’s mandates. Then select your company’s Business ID.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the name of the assignee, i.e. the party being authorised. Enter the name of the person, company or organisation who will take care of your business-related matters.
   • Assignor is the self-employed individual that authorises another company or individual to manage their tax matters on their behalf.
   • Assignee is the person or company authorised to act on the self-employed individual’s behalf.
6. Select the authorisation (mandate themes) called Filing of tax returns and other reports.
   • The “Filing of tax returns and other reports” authorisation allows your accountant to file all necessary tax returns electronically on your behalf.
   • However, the “Filing of tax returns and other reports” authorisation does not provide access to MyTax, which means that the authorised party cannot see your personal tax matters.
   • If necessary, you can also grant other mandates. However, please note that the “Managing of tax affairs” authorisation allows the assignee to view your personal tax matters, too.
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation on Suomi.fi. After this, the authorisation will enter into effect immediately.

If you cannot use electronic identification

Request authorisations in the Suomi.fi service. Read the instructions first and then make the request without logging in. This way, you can authorise an accounting firm, for example.

Grant an authorisation on Suomi.fi

1. Go to Suomi.fi and log in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After logging in, select Company’s mandates. Then select your company’s Business ID.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the name of the assignee, i.e. the party being authorised. Enter the name of the person, company or organisation who will take care of your business-related matters.
   • Assignor is the self-employed individual that authorises another company or individual to manage their tax matters on their behalf.
   • Assignee is the person or company authorised to act on the self-employed individual’s behalf.
6. Select the Suomi.fi authorisation (mandate themes) called Managing of tax affairs. This allows your accountant or other such party to use MyTax on your behalf in both your personal tax matters and your business-related tax matters.
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation on Suomi.fi. After this, the authorisation will enter into effect immediately.

If you cannot use electronic identification

Request authorisations in the Suomi.fi service. Read the instructions first and then make the request without logging in. This way, you can authorise an accounting firm, for example.

Grant an authorisation on Suomi.fi

1. Go to Suomi.fi and log in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After logging in, select Company’s mandates. Then select the Business ID for the agricultural or forestry operation.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the name of the assignee, i.e. the party being authorised. Enter the name of the person, company or organisation who will take care of your agricultural or forestry-related matters.
   • Assignor is the agricultural or forestry operator that authorises another company or individual to manage their tax matters on their behalf.
   • Assignee is the person or company authorised to act on the agricultural or forestry operator’s behalf.
6. Select the Suomi.fi authorisation (mandate themes) appropriate for the specific tax matter in question. For example, with the Filing of tax returns and other reports authorisation, your accountant cannot take care of your tax matters in MyTax but they can file tax returns on your behalf in other e-services.
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation on Suomi.fi. After this, the authorisation will enter into effect immediately.

The “Filing of tax returns and other reports” mandate does not authorise your accountant to view your personal tax information or use MyTax on your behalf.

If you cannot use electronic identification

Request authorisations in the Suomi.fi service. Read the instructions first and then make the request without logging in. This way, you can authorise an accounting firm, for example.

Grant an authorisation on Suomi.fi

1. Go to Suomi.fi and log in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After logging in, select Company’s mandates. Then select the Business ID for the agricultural or forestry operation.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the name of the assignee, i.e. the party being authorised. Enter the name of the person, company or organisation who will take care of your agricultural or forestry-related matters.
   • Assignor is the agricultural or forestry operator that authorises another company or individual to manage their tax matters on their behalf.
   • Assignee is the person or company authorised to act on the agricultural or forestry operator’s behalf.
6. Select the Suomi.fi authorisation (mandate themes) called Managing of tax affairs. This allows your accountant or other such party to use MyTax on your behalf in both your personal tax matters and your agricultural or forestry-related tax matters.
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation on Suomi.fi. After this, the authorisation will enter into effect immediately.

If you cannot use electronic identification

Request authorisations in the Suomi.fi service. Read the instructions first and then make the request without logging in. This way, you can authorise an accounting firm, for example.

If you are a shareholder in a business partnership and you want to take care of the partnership’s tax matters electronically, you need authorisation to do so from every shareholder – including yourself. You will need a Suomi.fi authorisation, which you can request by following these instructions. Each shareholder must personally approve your authorisation.

Follow these instructions only in the following situations:

• The partnership’s shareholders include other partnerships, death estates, individuals under the age of 18, or foreign individuals.
• Some shareholders do not have personal e-bank codes, a mobile certificate or a certificate card.
• One of the shareholders is under guardianship.

How to request a mandate for transactions for yourself

Apply for an authorisation in the Suomi.fi e-service. Log in to the service before you start filling in the application, so that the application will be saved automatically.

You will need the following information in order to complete the application:

• Name and personal ID of each shareholder.
• Whether the shareholder has personal e-bank codes, a mobile certificate or a certificate card.
• Whether the shareholder has a valid proof of ID (passport or identity card).
• Your email address.

These instructions will remain open in another tab when you click a link to Suomi.fi. You can refer back to these instructions while you fill in the application.

First, read section 1 of the Suomi.fi page to see what attachments are required for the application and what other requirements there are. After that, submit the application in section 2.

Go to the Suomi.fi page Authorisation with an application (opens in a new tab)

Instructions for filling in the authorisation application

1. Stage 1/10 Assignor:
   • Select “Finnish company or organisation with a Business ID”.
   • Answer “No” to the question of whether the company or organisation is in the Finnish Trade Register.
   • Select “A tax partnership” (agricultural partnership, forestry partnership or real estate partnership) as the organisation form.
2. Stage 2/10 Assignor’s status:
   • Select “Normal” as status.
   • Specify who will sign the application. If all shareholders are individuals, state that the signatory is a person authorised to represent the assignor. If one of the shareholders is another partnership or an estate of a deceased person, select the option stating that the signatory is a company, association or other organisation authorised to represent the assignor.
   • o Note that if one of the shareholders is another partnership or an estate, all of its shareholders will also have to sign the application.
3. Stage 3/10 Assignor’s details:
   • Enter the partnership’s Business ID.
   • Enter the partnership’s name.
4. Stage 4/10 Mandate type: Select “Mandate for transactions”.
   • A mandate for transactions means that you receive the type of mandate that will enable you to take care of the partnership’s affairs based on your application. For example, the “Managing of tax affairs” authorisation gives you access to MyTax.
   • It is recommended that mandates for transactions are requested for as many shareholders as possible at the same time. This way, the managing of tax matters is not dependent on one person, and multiple people can take part in managing them as needed. Everyone with a mandate for transactions can see the partnership’s tax information in MyTax.
   • Please note: If the partnership’s shareholders want to later authorise someone else or grant other mandates for other matters, the entire application must be submitted again. If it is likely that the partnership requires a number of different people or different mandate themes for managing its affairs, at this point it is recommended to request the right to grant a mandate for one of the shareholders. See the instructions for how to request the right to grant a mandate and how to then grant a mandate for transactions under “Partnership authorises a shareholder – not all shareholders have methods of identification or one of the shareholders is a partnership, an estate or a foreign individual”.
5. Stage 5/10 Assignee: Select “A person”.
6. Stage 6/10 Assignee’s details:
   • Select “Finnish personal identity code” as the identifier type.
   • Enter your personal ID, first name and last name. This section is for the personal ID and name of the person who will take care of the partnership’s tax matters.
   • Select “Add as an assignee”.
   • At this stage, only enter the details of shareholders for whom you are requesting the mandate for transactions. After all the details have been entered, remember to click “Add as an assignee”.
7. Stage 7/10 Mandate themes: You can filter the mandate themes by a search word, such as “mytax” or “tax affair”. Select all the themes relating to the matters that you wish to manage on the partnership’s behalf. If you select the “Managing of tax affairs” authorisation, you can take care of all of the partnership’s tax matters. The “Filing of tax returns and other reports” authorisation does not provide access to MyTax. Note that partnerships are not required to use mandate specifers. This is why you will move directly from stage 7 to stage 9 of the application.
8. Stage 9/10 Validity: Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
9. Stage 10/10 Mandate details: Check that the information is correct. Make corrections if necessary. After this stage, you can no longer make changes to the application.
10. Continue to finish the application:
    • If you have not yet logged in to the Suomi.fi e-service, you can identify yourself with your e-bank codes or other such method of identification and finish the application.
    • Answer the question of whether any of the shareholders have a guardian.
    • First, click the button to add yourself as a signatory. Then add the required details for all the other shareholders and specify how each shareholder will sign the application – by hand, or by logging in to Suomi.fi with their e-bank codes or other such identification method. You must include each shareholder’s personal ID and specify what kind of identification will be used by the shareholders who will sign the application by hand. If one of the partnership’s shareholders is an estate of a deceased person, each one of the estate’s shareholders must also sign the application.
    • After you have added each signatory, lock them and confirm the application by clicking the toggle switch. Select the application’s method of delivery. Add your email address to the contact details and read the instructions for delivering the application. Remember to confirm that the application is finished and notify the other shareholders that the application is ready to be signed.
    • After the application is accepted, you will receive a message from the Digital and Population Data Services Agency (DVV). After that, you can start using MyTax on the partnership’s behalf. When logging in, select “Act on behalf of a company”.
    • You can check the estimated processing time of the application on the Suomi.fi page Authorisation with an application

Instructions on Suomi.fi: How a forestry partnership, an agricultural partnership or a real estate partnerhip grants mandates

If you are a shareholder in a business partnership and you want to take care of the partnership’s tax matters electronically, you need authorisation to do so from every shareholder – including yourself. Follow these instructions to request a Suomi.fi authorisation for yourself to take care of the partnership’s tax matters. Each shareholder must personally approve your authorisation. If necessary, you can authorise multiple people on the partnership’s behalf at the same time.

These instructions are intended for the following situations:

• Each shareholder in the partnership has a Finnish personal ID.
• Each shareholder has personal e-bank codes, a mobile certificate or a certificate card.

Note! If the partnership’s shareholders include underage individuals, an estate of a deceased person, another partnership, or individuals under guardianship, see the instructions “Partnership authorises a shareholder – not all shareholders have methods of identification or one of the shareholders is a partnership, an estate or a foreign individual”.

Grant an authorisation on Suomi.fi

1. Go to Suomi.fi and log in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Company's mandates. Then select the partnership on behalf of which you wish to use e-services.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the name of the assignee, i.e. the party being authorised – fill in your own details and click “Add”.
   • Assignor is the partnership that authorises a certain person to act on the partnership’s behalf.
   • Assignee is the person authorised to act on the partnership’s behalf.
6. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes).
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation for your own part.
9. Inform the other shareholders that they also need to do the following:
   • log in to the Suomi.fi e-Authorizations service
   • select Company's mandates and then the partnership
   • click the link Proceed to validate and then confirm the authorisation granted.
10. The authorisation enters into effect after all the shareholders have confirmed it. After each shareholder has validated the mandate, the authorisation can be seen in the Suomi.fi e-Authorizations service under Granted mandates. The authorised party can see their valid authorisations under Received mandates. (There will be no separate notification of confirmed authorisation.)

Note! It is important that each shareholder selects the option “Company’s mandates” on Suomi.fi when the authorisation in question concerns the partnership. This way, each shareholder will represent the partnership and the authorisation will concern the partnership, not the personal tax matters of any of the shareholders.

Instructions on Suomi.fi: How a forestry partnership, an agricultural partnership or a real estate partnerhip grants mandates

If you want an accounting firm or other such representative to take care of the partnership’s tax matters, the shareholders must grant the representative a Suomi.fi authorisation.

The partnership’s shareholders must first request the right to grant a mandate for at least one of the shareholders. The right to grant a mandate enables a shareholder to authorise an accounting firm or other such party to represent you. A mandate for transactions authorises another party to take care of the partnership’s matters electronically. These instructions are for shareholders applying for the right to grant authorisations for themselves and potentially for other shareholders.

Follow these instructions only in the following situations:

• The partnership’s shareholders include other partnerships, death estates, individuals under the age of 18, or foreign individuals.
• A shareholder does not have e-bank codes or another electronic means of identification.
• One of the shareholders is under guardianship.

1. Submit an application with which you request the right to grant authorisations

Apply for an authorisation in the Suomi.fi e-service. Log in to the service before you start filling in the application, so that the application will be saved automatically.

These instructions will remain open in another tab when you click a link to Suomi.fi. You can refer back to these instructions while you fill in the application.

First, read section 1 of the Suomi.fi page to see what attachments are required for the application and what other requirements there are. After that, submit the application in section 2.

Go to the Suomi.fi page Authorisation with an application (opens in a new tab)

Instructions for filling in the authorisation application

1. Stage 1/10 Assignor:
   • Select “Finnish company or organisation with a Business ID”.
   • Answer “No” to the question of whether the company or organisation is in the Finnish Trade Register.
   • Select “A tax partnership” (agricultural partnership, forestry partnership or real estate partnership) as the organisation form.
2. Stage 2/10 Assignor’s status:
   • Select “Normal” as status.
   • Specify who will sign the application. If all shareholders are individuals, state that the signatory is a person authorised to represent the assignor. If one of the shareholders is another partnership or an estate of a deceased person, select the option stating that the signatory is a company, association or other organisation authorised to represent the assignor.
   • Note that if one of the shareholders is another partnership or an estate, all of its shareholders will also have to sign the application.
3. Stage 3/10 Assignor’s details:
   • Enter the partnership’s Business ID.
   • Enter the partnership’s name.
4. Stage 4/10 Mandate type: Select “Right to grant a mandate”.
   • Having a right to grant a mandate means that after the right has been registered by the Digital and Population Data Services Agency (DVV), you can authorise other parties – including yourself – to act on the partnership’s behalf in official matters.
   • A mandate for transactions means a Suomi.fi authorisation that allows the authorised party to take care of the partnership’s affairs in practice. For example, the “Managing of tax affairs” authorisation provides access to MyTax. When you have the right to grant authorisations, you can grant an authorisation for managing tax matters in the Suomi.fi e-Authorizations service.
5. Stage 5/10 Assignee: Proceed to the next stage.
6. Stage 6/10 Assignee’s details:
   • Select “Finnish personal identity code” as the identifier type.
   • Enter your personal ID, first name and last name. This section is for the personal ID and name of the person whose right to grant authorisations the application concerns.
   • Select “Add as an assignee”.
   • At this stage, only enter the details of shareholders for whom you are requesting the right to grant mandates. After all the details have been entered, remember to click “Add as an assignee”.
7. Stage 7/10 Mandate themes: You can filter the mandate themes by a search word, such as “mytax” or “tax affair”. Select all the themes relating to the matters that you wish the authorised representative to manage on the partnership’s behalf. If you select the “Managing of tax affairs” authorisation, the representative can take care of all of the partnership’s tax matters. The “Filing of tax returns and other reports” authorisation does not provide access to MyTax. Note that partnerships are not required to use mandate specifers. This is why you will move directly from stage 7 to stage 9 of the application.
8. Stage 9/10 Validity: Select the start and end date of the right to grant authorisations. Note that you will have to remember to renew the right to grant authorisations yourself if it is still needed after the end date – there is no automatic reminder.
9. Stage 10/10 Mandate details: Check that the information is correct. Make corrections if necessary. After this stage, you can no longer make changes to the application.
10. Continue to finish the application:
    • If you have not yet logged in to the Suomi.fi e-service, you can identify yourself with your e-bank codes or other such method of identification and finish the application.
    • Answer the question of whether any of the shareholders have a guardian.
    • First, click the button to add yourself as a signatory. Then add the required details for all the other shareholders and specify how each shareholder will sign the application – by hand, or by logging in to Suomi.fi with their e-bank codes or other such identification method. You must include each shareholder’s personal ID and specify what kind of identification will be used by the shareholders who will sign the application by hand. If one of the partnership’s shareholders is an estate of a deceased person, each one of the estate’s shareholders must also sign the application.
    • After you have added each signatory, lock them and confirm the application by clicking the toggle switch. Select the application’s method of delivery. Add your email address to the contact details and read the instructions for delivering the application. Remember to confirm that the application is finished and notify the other shareholders that the application is ready to be signed.
    • After the application is accepted, you will receive a message from the Digital and Population Data Services Agency (DVV). After this, you will be able to authorise representatives by yourself – without needing separate confirmation from other shareholders – in the Suomi.fi e-Authorizations service. You can check the estimated processing time of the application on the Suomi.fi page Authorisation with an application

2. Grant a mandate for transactions to the party that will take care of the partnership’s matters

1. After you have received a message from the DVV informing you that the right to grant a mandate has been registered, you can grant the mandate for transactions: go to Suomi.fi and log in to the e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Company's mandates. Then select the partnership on behalf of which you are granting authorisations.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the details of the assignee, i.e. the party being authorised to take care of the matters in question.
   • Assignor is the partnership that authorises a certain person or another company to act on the partnership’s behalf.
   • Assignee is the person or company authorised to act on the partnership’s behalf.
6. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes).
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation.
9. After this, the assignee authorised to represent the partnership can use MyTax on the partnership’s behalf by selecting “Act on behalf of a company” after logging in to the e-service.

Note! It is important that you select the option “Company’s mandates” on Suomi.fi when the authorisation in question concerns the partnership. This way, the shareholder logged in to Suomi.fi will represent the partnership and the authorisation will concern the partnership, not the personal tax matters of the shareholder.

If you want the representative to be able to take care of your personal tax matters as well, you will need to grant a separate mandate for that. See the instructions under “You are authorising another person” or “You are authorising a company or an organisation”.

If you want an accounting firm or other such representative to take care of the partnership’s tax matters, the shareholders must grant the representatives a Suomi.fi authorisation.

Follow these instructions only in the following situations:

• Each shareholder in the partnership has a Finnish personal ID.
• Each shareholder has personal e-bank codes, a mobile certificate or a certificate card.

Note! If the partnership’s shareholders include underage or foreign individuals, an estate of a deceased person, another partnership, or individuals under guardianship, see the instructions “Partnership authorises a company or individual who is not a shareholder – not all shareholders have methods of identification or one of the shareholders is a partnership, an estate or a foreign individual”.

Grant an authorisation on Suomi.fi

1. Go to Suomi.fi and log in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Company's mandates. Then select the partnership on behalf of which you are granting authorisations.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the name of the assignee, i.e. the party being authorised. If you are authorising an individual, enter their personal ID and name and click “Add”. If you are authorising a company, give the company’s Business ID.
   • Assignor is the partnership that authorises a certain person or another company to act on the partnership’s behalf.
   • Assignee is the person or company authorised to act on the partnership’s behalf.
6. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes).
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation for your own part.
9. Inform the other shareholders that they also need to do the following:
   • log in to the Suomi.fi e-Authorizations service
   • select Company's mandates and then the partnership
   • click the link Proceed to validate and then confirm the authorisation granted.
10. The authorisation enters into effect after all the shareholders have confirmed it. After each shareholder has validated the mandate, the authorisation can be seen in the Suomi.fi e-Authorizations service under Granted mandates. The authorised party can see their valid authorisations under Received mandates. (There will be no separate notification of confirmed authorisation.)

Note! It is important that each shareholder selects the option “Company’s mandates” on Suomi.fi when the authorisation in question concerns the partnership. This way, each shareholder logged in to Suomi.fi will represent the partnership and the authorisation will concern the partnership, not the personal tax matters of any of the shareholder.

If you want the representative to be able to take care of your personal tax matters as well, you will need to grant a separate mandate for that. See the instructions under “You are authorising another person” or “You are authorising a company or an organisation”.

Instructions on Suomi.fi: How a forestry partnership, an agricultural partnership or a real estate partnerhip grants mandates

If you are a shareholder in a business partnership and you want to take care of the partnership’s tax matters electronically, you need authorisation to do so from every shareholder – including yourself. You will need a Suomi.fi authorisation, which you can request by following these instructions. Each shareholder must personally approve your authorisation.

How to request a mandate for transactions for yourself

Apply for an authorisation in the Suomi.fi e-service. Log in to the service before you start filling in the application, so that the application will be saved automatically.

You will need the following information in order to complete the application:

• Name and personal ID of each shareholder.
• Whether the shareholder has personal e-bank codes, a mobile certificate or a certificate card.
• Whether the shareholder has a valid proof of ID (passport or identity card).
• Your email address.

These instructions will remain open in another tab when you click a link to Suomi.fi. You can refer back to these instructions while you fill in the application.

First, read section 1 of the Suomi.fi page to see what attachments are required for the application and what other requirements there are. After that, submit the application in section 2.

Go to the Suomi.fi page Authorisation with an application (opens in a new tab)

Instructions for filling in the authorisation application

1. Stage 1/10 Assignor:
   • Select “Finnish company or organisation with a Business ID”.
   • Answer “No” to the question of whether the company or organisation is in the Finnish Trade Register.
   • Select “Other company or organisation form, the details of which are not in the Trade Register” as the form of the organisation.
2. Stage 2/10 Assignor’s status:
   • Select “Normal” as status.
   • Specify who will sign the application. If all shareholders are individuals, state that the signatory is a person authorised to represent the assignor. If one of the shareholders is not an individual, select the option stating that the signatory is a company, association or other organisation authorised to represent the assignor.
   • Note that if one of the shareholders is an estate of a deceased person, all of its shareholders will also have to sign the application.
3. Stage 3/10 Assignor’s details:
   • Enter the partnership’s Business ID.
   • Enter the partnership’s name.
4. Stage 4/10 Mandate type: Select “Mandate for transactions”.
   • A mandate for transactions means that you receive the type of mandate that will enable you to take care of the partnership’s affairs based on your application. For example, the “Managing of tax affairs” authorisation gives you access to MyTax.
   • It is recommended that mandates for transactions are requested for as many shareholders as possible at the same time. This way, the managing of tax matters is not dependent on one person, and multiple people can take part in managing them as needed. Everyone with a mandate for transactions can see the partnership’s tax information in MyTax.
   • Please note: If the partnership’s shareholders want to later authorise someone else or grant other mandates for other matters, the entire application must be submitted again. If it is likely that the partnership requires a number of different people or different mandate themes for managing its affairs, at this point it is recommended to request the right to grant a mandate for one of the shareholders. See the instructions for how to request the right to grant a mandate and how to then grant a mandate for transactions under “Business partnership authorises a company or individual who is not a shareholder”.
5. Stage 5/10 Assignee: Select “A person”.
6. Stage 6/10 Assignee’s details:
   • Select “Finnish personal identity code” as the identifier type.
   • Enter your personal ID, first name and last name. This section is for the personal ID and name of the person who will take care of the partnership’s tax matters.
   • Select “Add as an assignee”.
   • At this stage, only enter the details of shareholders for whom you are requesting the mandate for transactions. After all the details have been entered, remember to click “Add as an assignee”.
7. Stage 7/10 Mandate themes: You can filter the mandate themes by a search word, such as “mytax” or “tax affair”. Select all the themes relating to the matters that you wish to manage on the partnership’s behalf. If you select the “Managing of tax affairs” authorisation, you can take care of all of the partnership’s tax matters. The “Filing of tax returns and other reports” authorisation does not provide access to MyTax. Note that partnerships are not required to use mandate specifers. This is why you will move directly from stage 7 to stage 9 of the application.
8. Stage 9/10 Validity: Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
9. Stage 10/10 Mandate details: Check that the information is correct. Make corrections if necessary. After this stage, you can no longer make changes to the application.
10. Continue to finish the application:
    • If you have not yet logged in to the Suomi.fi e-service, you can identify yourself with your e-bank codes or other such method of identification and finish the application.
    • Answer the question of whether any of the shareholders have a guardian.
    • First, click the button to add yourself as a signatory. Then add the required details for all the other shareholders and specify how each shareholder will sign the application – by hand, or by logging in to Suomi.fi with their e-bank codes or other such identification method. You must include each shareholder’s personal ID and specify what kind of identification will be used by the shareholders who will sign the application by hand.
    • After you have added each signatory, lock them and confirm the application by clicking the toggle switch. Select the application’s method of delivery. Add your email address to the contact details and read the instructions for delivering the application. Remember to confirm that the application is finished and notify the other shareholders that the application is ready to be signed.
    • After the application is accepted, you will receive a message from the Digital and Population Data Services Agency (DVV). After that, you can start using MyTax on the partnership’s behalf. When logging in, select “Act on behalf of a company”.
    • You can check the estimated processing time of the application on the Suomi.fi page Authorisation with an application

If you want an accounting firm or other such representative to take care of the partnership’s tax matters, the shareholders must grant the representative a Suomi.fi authorisation.

The partnership’s shareholders must first request the right to grant a mandate for at least one of the shareholders. The right to grant a mandate enables a shareholder to authorise an accounting firm or other such party to represent you. A mandate for transactions authorises another party to take care of the partnership’s matters electronically. These instructions are for shareholders applying for the right to grant authorisations for themselves and potentially for other shareholders.

1. Submit an application with which you request the right to grant authorisations

Apply for an authorisation in the Suomi.fi e-service. Log in to the service before you start filling in the application, so that the application will be saved automatically.

These instructions will remain open in another tab when you click a link to Suomi.fi. You can refer back to these instructions while you fill in the application.

First, read section 1 of the Suomi.fi page to see what attachments are required for the application and what other requirements there are. After that, submit the application in section 2.

Go to the Suomi.fi page Authorisation with an application (opens in a new tab)

Instructions for filling in the authorisation application

1. Stage 1/10 Assignor:
   • Select “Finnish company or organisation with a Business ID”.
   • Answer “No” to the question of whether the company or organisation is in the Finnish Trade Register.
   • Select “Other company or organisation form, the details of which are not in the Trade Register” as the form of the organisation.
2. Stage 2/10 Assignor’s status:
   • Select “Normal” as status.
   • Specify who will sign the application. If all shareholders are individuals, state that the signatory is a person authorised to represent the assignor. If one of the shareholders is an estate of a deceased person, select the option stating that the signatory is a company, association or other organisation authorised to represent the assignor.
   • Note that if one of the shareholders is an estate of a deceased person, all of its shareholders will also have to sign the application.
3. Stage 3/10 Assignor’s details:
   • Enter the partnership’s Business ID.
   • Enter the partnership’s name.
4. Stage 4/10 Mandate type: Select “Right to grant a mandate”.
   • Having a right to grant a mandate means that after the right has been registered by the Digital and Population Data Services Agency (DVV), you can authorise other parties – including yourself – to act on the partnership’s behalf in official matters.
   • A mandate for transactions means a Suomi.fi authorisation that allows the authorised party to take care of the partnership’s affairs in practice. For example, the “Managing of tax affairs” authorisation provides access to MyTax. When you have the right to grant authorisations, you can grant an authorisation for managing tax matters in the Suomi.fi e-Authorizations service.
5. Stage 5/10 Assignee: Proceed to the next stage.
6. Stage 6/10 Assignee’s details:
   • Select “Finnish personal identity code” as the identifier type.
   • Enter your personal ID, first name and last name. This section is for the personal ID and name of the person whose right to grant authorisations the application concerns.
   • Select “Add as an assignee”.
   • At this stage, only enter the details of shareholders for whom you are requesting the right to grant mandates. After all the details have been entered, remember to click “Add as an assignee”.
7. Stage 7/10 Mandate themes: You can filter the mandate themes by a search word, such as “mytax” or “tax affair”. Select all the themes relating to the matters that you wish the authorised representative to manage on the partnership’s behalf. If you select the “Managing of tax affairs” authorisation, the representative can take care of all of the partnership’s tax matters. The “Filing of tax returns and other reports” authorisation does not provide access to MyTax. Note that partnerships are not required to use mandate specifers. This is why you will move directly from stage 7 to stage 9 of the application.
8. Stage 9/10 Validity: Select the start and end date of the right to grant authorisations. Note that you will have to remember to renew the right to grant authorisations yourself if it is still needed after the end date – there is no automatic reminder.
9. Stage 10/10 Mandate details: Check that the information is correct. Make corrections if necessary. After this stage, you can no longer make changes to the application.
10. Continue to finish the application:
    • If you have not yet logged in to the Suomi.fi e-service, you can identify yourself with your e-bank codes or other such method of identification and finish the application.
    • Answer the question of whether any of the shareholders have a guardian.
    • First, click the button to add yourself as a signatory. Then add the required details for all the other shareholders and specify how each shareholder will sign the application – by hand, or by logging in to Suomi.fi with their e-bank codes or other such identification method. You must include each shareholder’s personal ID and specify what kind of identification will be used by the shareholders who will sign the application by hand.
    • After you have added each signatory, lock them and confirm the application by clicking the toggle switch. Select the application’s method of delivery. Add your email address to the contact details and read the instructions for delivering the application. Remember to confirm that the application is finished and notify the other shareholders that the application is ready to be signed.
    • After the application is accepted, you will receive a message from the Digital and Population Data Services Agency (DVV). After this, you will be able to authorise representatives by yourself – without needing separate confirmation from other shareholders – in the Suomi.fi e-Authorizations service. You can check the estimated processing time of the application on the Suomi.fi page Authorisation with an application

2. Grant a mandate for transactions to the party that will take care of the partnership’s matters

1. After you have received a message from the DVV informing you that the right to grant a mandate has been registered, you can grant the mandate for transactions: sign in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Company's mandates. Then select the partnership on behalf of which you are granting authorisations.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the details of the assignee, i.e. the party being authorised to take care of the matters in question.
   • Assignor is the partnership that authorises a certain person or another company to act on the partnership’s behalf.
   • Assignee is the person or company authorised to act on the partnership’s behalf.
6. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes).
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation.
9. After this, the assignee authorised to represent the partnership can use MyTax on the partnership’s behalf by selecting “Act on behalf of a company” after logging in to the e-service.

Note! It is important that you select the option “Company’s mandates” on Suomi.fi when the authorisation in question concerns the partnership. This way, the shareholder logged in to Suomi.fi will represent the partnership and the authorisation will concern the partnership, not the personal tax matters of the shareholder.

Public organisations include government bodies, cities, municipalities, joint municipal authorities, wellbeing services counties, regional authorities, the Provincial Government of the Åland Islands, and the Evangelical Lutheran and Orthodox Churches of Finland and their parishes and parish associations.

If you want an accounting firm or other such representative to take care of the organisation’s tax matters, the organisation must grant the representative a Suomi.fi authorisation.

The organisation must first request the right to grant a mandate for at least one of representative of the organisation. The right to grant a mandate enables a representative of the organisation to authorise an accounting firm or other such party to represent the benefit. A mandate for transactions authorises another party to take care of the organisation’s matters electronically.

These instructions are for representatives of public organisations applying for the right to grant authorisations for themselves and potentially for others in the same organisation. You must attach to the application a document that specifies who has the right to sign for the organisation.

1. Submit an application with which you request the right to grant authorisations

Apply for an authorisation in the Suomi.fi e-service. Log in to the service before you start filling in the application, so that the application will be saved automatically.

These instructions will remain open in another tab when you click a link to Suomi.fi. You can refer back to these instructions while you fill in the application.

First, read section 1 of the Suomi.fi page to see what attachments are required for the application and what other requirements there are. After that, submit the application in section 2.

Go to the Suomi.fi page Authorisation with an application (opens in a new tab)

Instructions for filling in the authorisation application

1. Stage 1/10 Assignor:
   • Select “Finnish company or organisation with a Business ID”.
   • Answer “No” to the question of whether the company or organisation is in the Finnish Trade Register.
   • Select “Public administration” as the form of the organisation.
2. Stage 2/10 Assignor’s status:
   • Select “Normal” as status.
   • Specify who will sign the application. Select the option stating that the signatory is a person authorised to represent the assignor.
3. Stage 3/10 Assignor’s details:
   • Enter the organisation’s Business ID.
   • Enter the organisation’s name.
4. Stage 4/10 Mandate type: Select “Right to grant a mandate”.
   • Having a right to grant a mandate means that after the right has been registered by the Digital and Population Data Services Agency (DVV), you can authorise other parties – including yourself – to act on the organisation’s behalf in official matters.
   • A mandate for transactions means a Suomi.fi authorisation that allows the authorised party to take care of the organisation’s affairs in practice. For example, the “Managing of tax affairs” authorisation gives you access to MyTax. When you have the right to grant authorisations, you can grant an authorisation for managing tax matters in the Suomi.fi e-Authorizations service.
5. Stage 5/10 Assignee: Proceed to the next stage.
6. Stage 6/10 Assignee’s details:
   • Select “Finnish personal identity code” as the identifier type.
   • Enter your personal ID, first name and last name. This section is for the personal ID and name of the person whose right to grant authorisations the application concerns.
   • Select “Add as an assignee”.
   • At this stage, only enter the details of individuals for whom you are requesting the right to grant mandates. After all the details have been entered, remember to click “Add as an assignee”.
7. Stage 7/10 Mandate themes: You can filter the mandate themes by a search word, such as “mytax” or “tax affair”. Select all the themes relating to the matters that you wish the authorised representative to manage on the organisation’s behalf. If you select the “Managing of tax affairs” authorisation, the representative can take care of all of the organisation’s tax matters. The “Filing of tax returns and other reports” authorisation does not provide access to MyTax. Note that public organisations are not required to use mandate specifiers. This is why you will move directly from stage 7 to stage 9 of the application.
8. Stage 9/10 Validity: Select the start and end date of the right to grant authorisations. Note that you will have to remember to renew the right to grant authorisations yourself if it is still needed after the end date – there is no automatic reminder.
9. Stage 10/10 Mandate details: Check that the information is correct. Make corrections if necessary. After this stage, you can no longer make changes to the application.
10. Continue to finish the application:
    • If you have not yet logged in to the Suomi.fi e-service, you can identify yourself with your e-bank codes or other such method of identification and finish the application.
    • Answer the question of whether any of the signatories have a guardian.
    • Add as signatory the person who has the right to sign for the organisation. If you will sign the application on your organisation’s behalf, add yourself as signatory.
    • If there are any other signatories, add the required details for the signatories and specify how each of them will sign the application – by hand, or by logging in to Suomi.fi with their e-bank codes or other such identification method. You must include each signatory’s personal ID and specify what kind of identification will be used by those who will sign the application by hand.
    • After you have added each signatory, lock them and confirm the application by clicking the toggle switch. Select the application’s method of delivery. Add your email address to the contact details and read the instructions for delivering the application. Remember to confirm that the application is finished and notify the other signatories that the application is ready to be signed.
    • After the application is accepted, you will receive a message from the Digital and Population Data Services Agency (DVV). After this, you will be able to authorise representatives by yourself – without needing separate confirmation from other signatories – in the Suomi.fi e-Authorizations service. You can check the estimated processing time of the application on the Suomi.fi page Authorisation with an application

2. Grant a mandate for transactions to the party that will take care of the organisation’s matters

1. After you have received a message from the DVV informing you that the right to grant a mandate has been registered, you can grant the mandate for transactions: sign in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Company's mandates. Then select the public organisation on behalf of which you are granting authorisations.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the details of the assignee, i.e. the party being authorised to take care of the matters in question.
   • Assignor is the public-sector organisation that authorises a certain person or another company to act on the organisation’s behalf.
   • Assignee is the person or company authorised to act on the public-sector organisation’s behalf.
6. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes).
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation.
9. After this, the assignee authorised to represent the company can use MyTax on the organisation’s behalf by selecting “Act on behalf of a company” after logging in to the e-service.

An estate of a deceased person must always have a Business ID in order to be able to grant Suomi.fi authorisations. However, estates of deceased persons cannot be issued a Business ID only for the purpose of having a Suomi.fi authorisation.

An estate can already have a Business ID that has been necessary for other purposes, such as agricultural operations. Alternatively, an estate that conducts business, for example, can submit an application for a Business ID.

If the estate has a Business ID, you are a shareholder in the estate and you want to take care of the estate’s tax matters electronically, you need authorisation to do so from every shareholder – including yourself. You will need a Suomi.fi authorisation, which you can request by following these instructions. Each shareholder must personally approve your authorisation.

How to request a mandate for transactions for yourself

Apply for an authorisation in the Suomi.fi e-service. Log in to the service before you start filling in the application, so that the application will be saved automatically.

You will need the following information in order to complete the application:

• Name and personal ID of each shareholder.
• Whether the shareholder has personal e-bank codes, a mobile certificate or a certificate card.
• Whether the shareholder has a valid proof of ID (passport or identity card).
• Your email address.

These instructions will remain open in another tab when you click a link to Suomi.fi. You can refer back to these instructions while you fill in the application.

Go to the Suomi.fi page Authorisation with an application (opens in a new tab)

Instructions for filling in the authorisation application

1. Stage 1/10 Assignor:
   • Select “Finnish company or organisation with a Business ID”.
   • Answer “No” to the question of whether the company or organisation is in the Finnish Trade Register.
   • Select “Deceased person’s estate with a Business ID” as the form of the organisation.
2. Stage 2/10 Assignor’s status:
   • Select “Normal” as status.
   • Specify who will sign the application. If all shareholders are individuals, state that the signatory is a person authorised to represent the assignor. If one of the shareholders is another estate, select the option stating that the signatory is a company, association or other organisation authorised to represent the assignor.
   • Note that if one of the estate shareholders is another estate, all of the other estate’s shareholders will also have to sign the application.
3. Stage 3/10 Assignor’s details:
   • Enter the estate’s Business ID.
   • Enter the estate’s name.
4. Stage 4/10 Mandate type: Select “Mandate for transactions”.
   • A mandate for transactions means that you receive the type of mandate that will enable you to take care of the estate’s affairs based on your application. For example, the “Managing of tax affairs” authorisation gives you access to MyTax.
   • It is recommended that mandates for transactions are requested for as many shareholders as possible at the same time. This way, the managing of tax matters is not dependent on one person, and multiple people can take part in managing them as needed. Everyone with a mandate for transactions can see the estate’s tax information in MyTax.
   • Please note: If the estate’s shareholders want to later authorise someone else or grant other mandates for other matters, the entire application must be submitted again. If it is likely that the estate requires a number of different people or different mandate themes for managing its affairs, at this point it is recommended to request the right to grant a mandate for one of the shareholders. See the instructions for how to request the right to grant a mandate and how to then grant a mandate for transactions under “Estate of a deceased person authorises a company or individual who is not a shareholder”.
5. Stage 5/10 Assignee: Select “A person”.
6. Stage 6/10 Assignee’s details:
   • Select “Finnish personal identity code” as the identifier type.
   • Enter your personal ID, first name and last name. This section is for the personal ID and name of the person who will take care of the estate’s tax matters.
   • Select “Add as an assignee”.
   • At this stage, only enter the details of shareholders for whom you are requesting the mandate for transactions. After all the details have been entered, remember to click “Add as an assignee”.
7. Stage 7/10 Mandate themes: You can filter the mandate themes by a search word, such as “mytax” or “tax affair”. Select all the themes relating to the matters that you wish to manage on the estate’s behalf. If you select the “Managing of tax affairs” authorisation, you can take care of all of the estate’s tax matters. The “Filing of tax returns and other reports” authorisation does not provide access to MyTax. Note that estates are not required to use mandate specifiers. This is why you will move directly from stage 7 to stage 9 of the application.
8. Stage 9/10 Validity: Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
9. Stage 10/10 Mandate details: Check that the information is correct. Make corrections if necessary. After this stage, you can no longer make changes to the application.
10. Continue to finish the application:
    • If you have not yet logged in to the Suomi.fi e-service, you can identify yourself with your e-bank codes or other such method of identification and finish the application.
    • Answer the question of whether any of the shareholders have a guardian.
    • First, click the button to add yourself as a signatory. Then add the required details for all the other shareholders and specify how each shareholder will sign the application – by hand, or by logging in to Suomi.fi with their e-bank codes or other such identification method. You must include each shareholder’s personal ID and specify what kind of identification will be used by the shareholders who will sign the application by hand. If one of the estate’s shareholders is another estate, each one of the other estate’s shareholders must also sign the application.
    • After you have added each signatory, lock them and confirm the application by clicking the toggle switch. Select the application’s method of delivery. Add your email address to the contact details and read the instructions for delivering the application. Remember to confirm that the application is finished and notify the other shareholders that the application is ready to be signed.
    • After the application is accepted, you will receive a message from the Digital and Population Data Services Agency (DVV). After that, you can start using MyTax on the estate’s behalf. When logging in, select “Act on behalf of a company”.
    • You can check the estimated processing time of the application on the Suomi.fi page Authorisation with an application

Please note that you can submit a deed of estate inventory in MyTax even if you do not have a Suomi.fi authorisation.

An estate of a deceased person must always have a Business ID in order to be able to grant Suomi.fi authorisations. However, estates of deceased persons cannot be issued a Business ID only for the purpose of having a Suomi.fi authorisation.

An estate can already have a Business ID that has been necessary for other purposes, such as agricultural operations. Alternatively, an estate that conducts business, for example, can submit an application for a Business ID.

If you want an accounting firm or other such representative to take care of the estate’s tax matters, the shareholders must grant the representative a Suomi.fi authorisation.

The estate’s shareholders must first request the right to grant a mandate for at least one of the shareholders. The right to grant a mandate enables a shareholder to authorise an accounting firm or other such party to represent you. A mandate for transactions authorises another party to take care of the estate’s matters electronically. These instructions are for shareholders applying for the right to grant authorisations for themselves and potentially for other shareholders.

1. Submit an application with which you request the right to grant authorisations

Apply for an authorisation in the Suomi.fi e-service. Log in to the service before you start filling in the application, so that the application will be saved automatically.

You will need the following information in order to complete the application:

• Name and personal ID of each shareholder.
• Whether the shareholder has personal e-bank codes, a mobile certificate or a certificate card.
• Whether the shareholder has a valid proof of ID (passport or identity card).
• Your email address.

These instructions will remain open in another tab when you click a link to Suomi.fi. You can refer back to these instructions while you fill in the application.

First, read section 1 of the Suomi.fi page to see what attachments are required for the application and what other requirements there are. After that, submit the application in section 2.

Go to the Suomi.fi page Authorisation with an application (opens in a new tab)

Instructions for filling in the authorisation application

1. Stage 1/10 Assignor:
   • Select “Finnish company or organisation with a Business ID”.
   • Answer “No” to the question of whether the company or organisation is in the Finnish Trade Register.
   • Select “Deceased person’s estate with a Business ID” as the form of the organisation.
2. Stage 2/10 Assignor’s status:
   • Select “Normal” as status.
   • Specify who will sign the application. If all shareholders are individuals, state that the signatory is a person authorised to represent the assignor. If one of the shareholders is another estate, select the option stating that the signatory is a company, association or other organisation authorised to represent the assignor.
   • Note that if one of the shareholders is another estate, all of its shareholders will also have to sign the application.
3. Stage 3/10 Assignor’s details:
   • Enter the estate’s Business ID.
   • Enter the estate’s name.
4. Stage 4/10 Mandate type: Select “Right to grant a mandate”.
   • Having a right to grant a mandate means that after the right has been registered by the Digital and Population Data Services Agency (DVV), you can authorise other parties – including yourself – to act on the estate’s behalf in official matters.
   • A mandate for transactions means a Suomi.fi authorisation that allows the authorised party to take care of the estate’s affairs in practice. For example, the “Managing of tax affairs” authorisation provides access to MyTax. When you have the right to grant authorisations, you can grant an authorisation for managing tax matters in the Suomi.fi e-Authorizations service.
5. Stage 5/10 Assignee: Proceed to the next stage.
6. Stage 6/10 Assignee’s details:
   • Select “Finnish personal identity code” as the identifier type.
   • Enter your personal ID, first name and last name. This section is for the personal ID and name of the person whose right to grant authorisations the application concerns.
   • Select “Add as an assignee”.
   • At this stage, only enter the details of shareholders for whom you are requesting the right to grant mandates. After all the details have been entered, remember to click “Add as an assignee”.
7. Stage 7/10 Mandate themes: You can filter the mandate themes by a search word, such as “mytax” or “tax affair”. Select all the themes relating to the matters that you wish the authorised representative to manage on the estate’s behalf. If you select the “Managing of tax affairs” authorisation, the representative can take care of all of the estate’s tax matters. The “Filing of tax returns and other reports” authorisation does not provide access to MyTax. Note that estates are not required to use mandate specifiers. This is why you will move directly from stage 7 to stage 9 of the application.
8. Stage 9/10 Validity: Select the start and end date of the right to grant authorisations. Note that you will have to remember to renew the right to grant authorisations yourself if it is still needed after the end date – there is no automatic reminder.
9. Stage 10/10 Mandate details: Check that the information is correct. Make corrections if necessary. After this stage, you can no longer make changes to the application.
10. Continue to finish the application:
    • If you have not yet logged in to the Suomi.fi e-service, you can identify yourself with your e-bank codes or other such method of identification and finish the application.
    • Answer the question of whether any of the shareholders have a guardian.
    • First, click the button to add yourself as a signatory. Then add the required details for all the other shareholders and specify how each shareholder will sign the application – by hand, or by logging in to Suomi.fi with their e-bank codes or other such identification method. You must include each shareholder’s personal ID and specify what kind of identification will be used by the shareholders who will sign the application by hand. If one of the estate’s shareholders is another estate, each one of the other estate’s shareholders must also sign the application.
    • After you have added each signatory, lock them and confirm the application by clicking the toggle switch. Select the application’s method of delivery. Add your email address to the contact details and read the instructions for delivering the application. Remember to confirm that the application is finished and notify the other shareholders that the application is ready to be signed.
    • After the application is accepted, you will receive a message from the Digital and Population Data Services Agency (DVV). After this, you will be able to authorise representatives by yourself – without needing separate confirmation from other shareholders – in the Suomi.fi e-Authorizations service. You can check the estimated processing time of the application on the Suomi.fi page Authorisation with an application

2. Grant a mandate for transactions to the party that will take care of the estate’s matters

1. After you have received a message from the DVV informing you that the right to grant a mandate has been registered, you can grant the mandate for transactions: sign in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Company's mandates. Then select the estate on behalf of which you are granting authorisations.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the details of the assignee, i.e. the party being authorised to take care of the matters in question.
   • Assignor is the estate that authorises a certain person or another company to act on the estate’s behalf.
   • Assignee is the person or company authorised to act on the estate’s behalf.
6. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes).
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation.
9. After this, the assignee authorised to represent the company can use MyTax on the estate’s behalf by selecting “Act on behalf of a company” after logging in to the e-service.

Note! It is important that you select the option “Company’s mandates” on Suomi.fi when the authorisation in question concerns the estate. This way, the shareholder logged in to Suomi.fi will represent the estate and the authorisation will concern the estate, not the personal tax matters of the shareholder.

If you want the representative to be able to take care of your personal tax matters as well, you will need to grant a separate mandate for that. See the instructions under “You are authorising another person” or “You are authorising a company or an organisation”.

If the estate does not have a Business ID, it cannot authorise anyone to take care of its tax matters electronically. Estates of deceased persons cannot be issued a Business ID only for the purpose of having a Suomi.fi authorisation.

However, an estate that conducts business, for example, can submit an application for a Business ID.

For the time being, if the estate does not have a Business ID, its tax matters cannot be managed online. However, parties to the estate can submit a letter of authorisation for other service channels using a paper form. The person appointed in the letter of authorisation can take care of the estate’s tax matters using paper forms, by calling the Tax Administration’s telephone service or by visiting the tax office.

Authorisation for taking care of an estate’s tax matters (available in Finnish and Swedish, link to Finnish)

Forms for common tax matters concerning estates (available in Finnish and Swedish, link to Finnish)

Please note that you can submit a deed of estate inventory in MyTax even if you do not have a Suomi.fi authorisation.

If you are listed in the Register of Associations as the association’s Chair of the Board, or if you have the right to sign for the association alone, you do not need a Suomi.fi authorisation to take care of the association’s tax matters. Your name and personal ID must be recorded in the Register of Associations. Instructions on Suomi.fi: Acting on behalf of a Finnish association without a separate mandate

If you want to authorise someone else to take care of the association’s tax matters, see the instructions under “You have right to sign for the association alone and you are authorising another individual or company to act on your behalf”.

If you do not have the right to sign but you are taking care of the association’s tax matters, you need a Suomi.fi authorisation. See the instructions under “How to grant an authorisation if two or more together have the right to sign for the association”.

If you want to take care of the association’s tax matters as a treasurer or in other such role, you will need a Suomi.fi authorisation. Likewise, if an accounting firm or other such representative takes care of the association’s tax matters, the association must grant the representative a Suomi.fi authorisation.

These instructions are for situations where two together have the right to sign for the association.

If three or more together have the right to sign, the association must submit an authorisation application. Read instructions on Suomi.fi: How an association grants mandates

Any of the parties authorised to sign can start the authorisation process by selecting the role Company’s mandates in the Suomi.fi e-Authorizations service. This way, the individual logged in to Suomi.fi will represent the foundation and the authorisation will concern the association, not the personal tax matters of the individual with the right to sign for the association.

Grant an authorisation on Suomi.fi

1. Go to Suomi.fi and log in to the Suomi.fi e-Authorizations service (opens in a new tab)
   • You need personal e-bank codes, a mobile certificate or a certificate card.
2. After you have identified yourself, select Company's mandates. Then select the association on behalf of which you are granting authorisations.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the details of the assignee, i.e. the party being authorised to take care of the matters in question. If you will act on the association’s behalf, enter your own personal details.
   • Assignor is the organisation that authorises a certain person or another company to act on the organisation’s behalf.
   • Assignee is the person or company authorised to act on the organisation’s behalf.
6. Select the Suomi.fi authorisation or authorisations you wish to grant for the managing of tax affairs (mandate themes).
7. Select the person with whom you are granting the authorisation as the party confirming the authorisation.
8. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
9. Confirm the authorisation for your own part.
10. Inform the other person whose confirmation is needed that they need to log in to the Suomi.fi e-Authorizations service, select Company’s mandates and confirm the authorisations for their part. The authorisation will enter into effect once the other party with the right to sign has confirmed the authorisation in the Suomi.fi service.
11. The authorised party can log in to MyTax, for example, and take care of the authorising party’s tax matters. When logging in, the authorised party must select the option “Act on behalf of a company”.

Instructions on Suomi.fi: How representatives of an organisation grant mandates jointly

You can grant another person or company a Suomi.fi authorisation for the association’s tax matters if both of the following apply to your situation:

• You have the right to represent your association on your own.
• Your personal ID and your right to sign for the association are recorded in the Register of Associations.

You can check the information at the Register of Associations maintained by the Finnish Patent and Registration Office.

Grant an authorisation on Suomi.fi

1. Go to Suomi.fi and log in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Company's mandates. Then select the association on behalf of which you are granting authorisations.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the name of the assignee, i.e. the party being authorised. If you are authorising an individual, enter their personal ID and name and click “Add”. If you are authorising a company, give the company’s Business ID.
   • Assignor is the organisation that authorises a certain person or another company to act on the organisation’s behalf.
   • Assignee is the person or company authorised to act on the organisation’s behalf.
6. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes).
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation.
9. After this, the assignee authorised to represent the company can use MyTax on the association’s behalf by selecting “Act on behalf of a company” after logging in to the e-service.

Note that the authorised party cannot change the association’s bank account number in MyTax. The account number can only be changed by a person with an official role recorded in the Register of Associations, such as the association’s Chair or a representative authorised to sign for the association alone.

If you cannot use the Suomi.fi e-Authorizations service

If your right to represent the association alone has been recorded in the Finnish Patent and Registration Office’s Register of Associations but you cannot use the Suomi.fi e-Authorizations service on the association’s behalf, contact the Patent Office’s customer service.

You need the following information:

• “Cannot grant Suomi.fi authorisations”
• the association’s Business ID
• the name of the person who cannot grant authorisations
• an email address for responses.

If you are listed in the Trade Register as as having the right to sign for the foundation alone, you do not need a Suomi.fi authorisation to take care of the foundation’s tax matters. Your name and personal ID must be recorded in the Trade Register.

If you do not have the right to sign but you are taking care of the foundation’s tax matters, request a Suomi.fi authorisation from someone who has the right to sign for the foundation.

See the following sections in the instructions on how to grant an authorisation:

• Foundation is not in the Trade Register
• Foundation is in the Trade Register.

If there is no representative with the right to sign for the foundation alone recorded in the Trade Register, the foundation’s representative can grant authorisations as follows:

1. Submit an application with which you request the right to grant authorisations

Apply for an authorisation in the Suomi.fi e-service. Read the instructions on Suomi.fi first and then make the request. Log in to the service before you start filling in the application, so that the application will be saved automatically.

These instructions will remain open in another tab when you click a link to Suomi.fi. This way, you can use the following instructions at the same time as you fill in the application.

Go to the Suomi.fi page Authorisation with an application (opens in a new tab)

Instructions for filling in the authorisation application

1. Stage 1/10 Assignor:
   • Select “Finnish company or organisation with a Business ID”.
   • Answer “No” to the question of whether to company or organisation is in the Finnish Trade Register.
   • Select “Registered foundation or pension trust” as the form of the organisation.
2. Stage 2/10 Assignor’s status:
   • Select “Normal” as status.
   • Specify who will sign the application. Select the option stating that the signatory is a person authorised to represent the assignor.
3. Stage 3/10 Assignor’s details:
   • Enter the foundation’s Business ID.
   • Enter the foundation’s name.
4. Stage 4/10 Mandate type: Select “Right to grant a mandate”.
   • Having a right to grant a mandate means that after the right has been registered by the Digital and Population Data Services Agency (DVV), you can authorise other parties – including yourself – to act on the foundation’s behalf in official matters.
   • A mandate for transactions means a Suomi.fi authorisation that allows the authorised party to take care of the foundation’s affairs in practice. For example, the “Managing of tax affairs” authorisation gives you access to MyTax. When you have the right to grant authorisations, you can grant an authorisation for managing tax matters in the Suomi.fi e-Authorizations service.
   • Note: If you are the foundation’s treasurer, for example, and you want to take care of the foundation’s tax matters on your own, you can select mandate for transactions as the mandate type. This will allow you to act directly on the foundation’s behalf.
5. Stage 5/10 Assignee: Proceed to the next stage.
6. Stage 6/10 Assignee’s details:
   • Select “Finnish personal identity code” as the identifier type.
   • Enter your personal ID, first name and last name. This section is for the personal ID and name of the person whose right to grant authorisations the application concerns.
   • Select “Add as an assignee”.
   • At this stage, only enter the details of individuals for whom you are requesting the right to grant mandates. After all the details have been entered, remember to click “Add as an assignee”.
7. Stage 7/10 Mandate themes: You can filter the mandate themes by a search word, such as “mytax” or “tax affair”. Select all the themes relating to the matters that you wish the authorised representative to manage on the foundation’s behalf. If you select the “Managing of tax affairs” authorisation, the representative can take care of all of the foundation’s tax matters. The “Filing of tax returns and other reports” authorisation does not provide access to MyTax. Note that foundations are not required to use mandate specifiers. This is why you will move directly from stage 7 to stage 9 of the application.
8. Stage 9/10 Validity: Select the start and end date of the right to grant authorisations. Note that you will have to remember to renew the right to grant authorisations yourself if it is still needed after the end date – there is no automatic reminder.
9. Stage 10/10 Mandate details: Check that the information is correct. Make corrections if necessary. After this stage, you can no longer make changes to the application.
10. Continue to finish the application:
    • If you have not yet logged in to the Suomi.fi e-service, you can identify yourself with your e-bank codes or other such method of identification and finish the application.
    • Answer the question of whether any of the signatories have a guardian.
    • First, click the button to add yourself as a signatory. If two or more together sign for the foundation, enter the details of the other party with the right to sign. Specify how the other party with the right to sign will sign the application – by hand, or by logging in to Suomi.fi with their e-bank codes or other such identification method. You must include the other party’s personal ID and specify what kind of identification they will use if they will sign the application by hand.
    • After you have added each signatory, lock them and confirm the application by clicking the toggle switch. Select the application’s method of delivery. Add your email address to the contact details and read the instructions for delivering the application. Remember to confirm that the application is finished and notify the other parties with the right to sign that the application is ready to be signed.
    • After the application is accepted, you will receive a message from the Digital and Population Data Services Agency (DVV). After this, you will be able to authorise representatives by yourself – without needing separate confirmation from other parties with the right to sign – in the Suomi.fi e-Authorizations service. You can check the estimated processing time of the application on the Suomi.fi page Authorisation with an application

2. Grant a mandate for transactions to the party that will take care of the foundation’s matters

1. After you have received a message from the DVV informing you that the right to grant a mandate has been registered, you can grant the mandate for transactions: sign in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Company's mandates. Then select the foundation on behalf of which you are granting authorisations.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the details of the assignee, i.e. the party being authorised to take care of the matters in question. If you will act on the foundation’s behalf, enter your own personal details.
   • Assignor is the foundation that authorises a certain person or another company to act on the foundation’s behalf.
   • Assignee is the person or company authorised to act on the foundation’s behalf.
6. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes).
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation.
9. After this, the assignee authorised to represent the foundation can use MyTax on the foundation’s behalf by selecting “Act on behalf of a company” after logging in to the e-service.

Note! It is important that you select the option “Company’s mandates” on Suomi.fi when the authorisation in question concerns the foundation. This way, the individual logged in to Suomi.fi will represent the foundation and the authorisation will concern the foundation, not the personal tax matters of the individual with the right to sign for the foundation.

If you have the right to sign for the foundation alone, you can grant another person or company a Suomi.fi authorisation for the foundation’s tax matters. Your personal ID and your right to sign must be recorded in the Trade Register. You will also need personal e-bank codes, a mobile certificate or a certificate card for identification.

Grant an authorisation on Suomi.fi

1. Go to Suomi.fi and log in to the Suomi.fi e-Authorizations service (opens in a new tab)
2. After you have identified yourself, select Company's mandates. Then select the foundation on behalf of which you are granting authorisations.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the name of the assignee, i.e. the party being authorised. If you are authorising an individual, enter their personal ID and name and click “Add”. If you are authorising a company, give the company’s Business ID.
   • Assignor is the foundation that authorises a certain person or another company to act on the foundation’s behalf.
   • Assignee is the person or company authorised to act on the foundation’s behalf.
6. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes).
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation.
9. After this, the assignee authorised to represent the foundation can use MyTax on the foundation’s behalf by selecting “Act on behalf of a company” after logging in to the e-service.

If you are a shareholder in a joint-administration benefit and you want to take care of the benefit’s tax matters electronically, you need authorisation to do so from every shareholder – including yourself. You will need a Suomi.fi authorisation, which you can request by following these instructions. Each shareholder must personally approve your authorisation.

How to request a mandate for transactions for yourself

Apply for an authorisation in the Suomi.fi e-service. Log in to the service before you start filling in the application, so that the application will be saved automatically.

You will need the following information in order to complete the application:

• Document proving your right to sign for the benefit.
• Your email address.

These instructions will remain open in another tab when you click a link to Suomi.fi. You can refer back to these instructions while you fill in the application.

First, read section 1 of the Suomi.fi page to see what attachments are required for the application and what other requirements there are. After that, submit the application in section 2.

Go to the Suomi.fi page Authorisation with an application (opens in a new tab)

Instructions for filling in the authorisation application

1. Stage 1/10 Assignor:
   • Select “Finnish company or organisation with a Business ID”.
   • Answer “No” to the question of whether the company or organisation is in the Finnish Trade Register.
   • Select “Other company or organisation form, the details of which are not in the Trade Register” as the form of the organisation.
2. Stage 2/10 Assignor’s status:
   • Select “Normal” as status.
   • Specify who will sign the application. Select the option stating that the signatory is a person authorised to represent the assignor.
3. Stage 3/10 Assignor’s details:
   • Enter the benefit’s Business ID.
   • Enter the benefit’s name.
4. Stage 4/10 Mandate type: Select “Mandate for transactions”.
   • A mandate for transactions means that you receive the type of mandate that will enable you to take care of the benefit’s affairs based on your application. For example, the “Managing of tax affairs” authorisation gives you access to MyTax.
   • It is recommended that mandates for transactions are requested for as many shareholders as possible at the same time. This way, the managing of tax matters is not dependent on one person, and multiple people can take part in managing them as needed. Everyone with a mandate for transactions can see the benefit’s tax information in MyTax.
   • Please note: If the benefit’s shareholders want to later authorise someone else or grant other mandates for other matters, the entire application must be submitted again. If it is likely that the benefit requires a number of different people or different mandate themes for managing its affairs, at this point it is recommended to request the right to grant a mandate for one of the shareholders. See the instructions for how to request the right to grant a mandate and how to then grant a mandate for transactions under “Benefit under joint administration authorises a company or individual who is not a shareholder”.
5. Stage 5/10 Assignee: Select “A person”.
6. Stage 6/10 Assignee’s details:
   • Select “Finnish personal identity code” as the identifier type.
   • Enter your personal ID, first name and last name. This section is for the personal ID and name of the person who will take care of the benefit’s tax matters.
   • Select “Add as an assignee”.
   • At this stage, only enter the details of shareholders for whom you are requesting the mandate for transactions. After all the details have been entered, remember to click “Add as an assignee”.
7. Stage 7/10 Mandate themes: You can filter the mandate themes by a search word, such as “mytax” or “tax affair”. Select all the themes relating to the matters that you wish to manage on the benefit’s behalf. If you select the “Managing of tax affairs” authorisation, you can take care of all of the benefit’s tax matters. The “Filing of tax returns and other reports” authorisation does not provide access to MyTax. Note that benefits under joint administration are not required to use mandate specifiers. This is why you will move directly from stage 7 to stage 9 of the application.
8. Stage 9/10 Validity: Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
9. Stage 10/10 Mandate details: Check that the information is correct. Make corrections if necessary. After this stage, you can no longer make changes to the application.
10. Continue to finish the application:
    • If you have not yet logged in to the Suomi.fi e-service, you can identify yourself with your e-bank codes or other such method of identification and finish the application.
    • Answer the question of whether any of the shareholders have a guardian.
    • Click the button to add yourself as a signatory.
    • Lock the signatories and confirm the application by clicking the toggle switch. Select the application’s method of delivery. Add your email address to the contact details and read the instructions for delivering the application. Remember to mark the application as completed.
    • After the application is accepted, you will receive a message from the Digital and Population Data Services Agency (DVV). After that, you can start using MyTax on the benefit’s behalf. When logging in, select “Act on behalf of a company”.
    • You can check the estimated processing time of the application on the Suomi.fi page Authorisation with an application

If you want an accounting firm or other such representative to take care of the benefit’s tax matters, the benefit must grant the representative a Suomi.fi authorisation.

The benefit’s shareholders must first request the right to grant a mandate for at least one of the shareholders. The right to grant a mandate enables a shareholder to authorise an accounting firm or other such party to represent you. A mandate for transactions authorises another party to take care of the benefit’s matters electronically. These instructions are for shareholders applying for the right to grant authorisations for themselves and potentially for other shareholders.

1. Submit an application with which you request the right to grant authorisations

Apply for an authorisation in the Suomi.fi e-service. Log in to the service before you start filling in the application, so that the application will be saved automatically.

In order to submit the application, you will need a document proving your right to sign.

These instructions will remain open in another tab when you click a link to Suomi.fi. You can refer back to these instructions while you fill in the application.

First, read section 1 of the Suomi.fi page to see what attachments are required for the application and what other requirements there are. After that, submit the application in section 2.

Go to the Suomi.fi page Authorisation with an application (opens in a new tab)

Instructions for filling in the authorisation application

1. Stage 1/10 Assignor:
   • Select “Finnish company or organisation with a Business ID”.
   • Answer “No” to the question of whether the company or organisation is in the Finnish Trade Register.
   • Select “Other company or organisation form, the details of which are not in the Trade Register” as the form of the organisation.
2. Stage 2/10 Assignor’s status:
   • Select “Normal” as status.
   • Specify who will sign the application. Select the option stating that the signatory is a person authorised to represent the assignor.
3. Stage 3/10 Assignor’s details:
   • Enter the benefit’s Business ID.
   • Enter the benefit’s name.
4. Stage 4/10 Mandate type: Select “Right to grant a mandate”.
   • Having a right to grant a mandate means that after the right has been registered by the Digital and Population Data Services Agency (DVV), you can authorise other parties – including yourself – to act on the benefit’s behalf in official matters.
   • A mandate for transactions means a Suomi.fi authorisation that allows the authorised party to take care of the benefit’s affairs in practice. For example, the “Managing of tax affairs” authorisation gives you access to MyTax. When you have the right to grant authorisations, you can grant an authorisation for managing tax matters in the Suomi.fi e-Authorizations service.
5. Stage 5/10 Assignee: Proceed to the next stage.
6. Stage 6/10 Assignee’s details:
   • Select “Finnish personal identity code” as the identifier type.
   • Enter your personal ID, first name and last name. This section is for the personal ID and name of the person whose right to grant authorisations the application concerns.
   • Select “Add as an assignee”.
   • At this stage, only enter the details of shareholders for whom you are requesting the right to grant mandates. After all the details have been entered, remember to click “Add as an assignee”.
7. Stage 7/10 Mandate themes: You can filter the mandate themes by a search word, such as “mytax” or “tax affair”. Select all the themes relating to the matters that you wish the authorised representative to manage on the benefit’s behalf. If you select the “Managing of tax affairs” authorisation, the representative can take care of all of the benefit’s tax matters. The “Filing of tax returns and other reports” authorisation does not provide access to MyTax. Note that benefits under joint administration are not required to use mandate specifiers. This is why you will move directly from stage 7 to stage 9 of the application.
8. Stage 9/10 Validity: Select the start and end date of the right to grant authorisations. Note that you will have to remember to renew the right to grant authorisations yourself if it is still needed after the end date – there is no automatic reminder.
9. Stage 10/10 Mandate details: Check that the information is correct. Make corrections if necessary. After this stage, you can no longer make changes to the application.
10. Continue to finish the application:
    • If you have not yet logged in to the Suomi.fi e-service, you can identify yourself with your e-bank codes or other such method of identification and finish the application.
    • Answer the question of whether any of the shareholders have a guardian.
    • Click the button to add yourself as a signatory.
    • Lock the signatories and confirm the application by clicking the toggle switch. Select the application’s method of delivery. Add your email address to the contact details and read the instructions for delivering the application. Remember to mark the application as completed.
    • After the application is accepted, you will receive a message from the Digital and Population Data Services Agency (DVV). After this, you will be able to authorise representatives by yourself – without needing separate confirmation from other shareholders – in the Suomi.fi e-Authorizations service. You can check the estimated processing time of the application on the Suomi.fi page Authorisation with an application

2. Grant a mandate for transactions to the party that will take care of the benefit’s matters

1. After you have received a message from the DVV informing you that the right to grant a mandate has been registered, you can grant the mandate for transactions: sign in to the Suomi.fi e-Authorizations service
2. After you have identified yourself, select Company's mandates. Then select the benefit on behalf of which you are granting authorisations.
3. Select Grant mandates.
4. Select mandate for transactions as the authorisation type.
5. Enter the details of the assignee, i.e. the party being authorised to take care of the matters in question.
   • Assignor is the benefit under joint administration that authorises a certain person or another company to act on the benefit’s behalf.
   • Assignee is the person or company authorised to act on the benefit’s behalf.
6. Select the Suomi.fi authorisation for the managing of tax affairs (mandate themes).
7. Select the start and end date of the authorisation. Note that you will have to remember to renew the authorisation yourself if it is still needed after the end date – there is no automatic reminder.
8. Confirm the authorisation.
9. After this, the assignee authorised to represent the benefit can use MyTax on the benefit’s behalf by selecting “Act on behalf of a company” after logging in to the e-service.

Note! It is important that you select the option “Company’s mandates” on Suomi.fi when the authorisation in question concerns the joint-administration benefit. This way, the shareholder logged in to Suomi.fi will represent the benefit and the authorisation will concern the benefit, not the personal tax matters of the shareholder.