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How to log in to MyTax and other e-services

You must log in to be able to take care of your or your personal taxes or your company’s tax affairs in our e-services. Log in to MyTax and other e-services with your e-bank security codes, with a mobile certificate or with an electronic ID card.

Please note that it is possible to get a mobile certificate for the employee’s business phone, if the employee declines to use their personal banking codes when managing the company’s tax matters.

If you use the service on behalf of someone else, you will need a authorisation.

Foreign companies: A representative needs the Finnish Authenticator mobile app and a authorisation to use e-services on the foreign company’s behalf.

Log in with e-bank codes, ID card or mobile certificate

When you take care of your own or your company’s tax matters, you can log in with your online banking codes, electronic ID card or mobile certificate, if you are:

  • a private individual
  • a business owner, self-employed
  • an operator of a farm or forestry enterprise
  • the representative of a limited liability company, housing company, cooperative society, general partnership, limited partnership or association, if you have an authorisation recorded in the Trade Register that entitles you to use MyTax on their behalf.

You can log in with your online banking codes, electronic ID card or mobile certificate, if you are managing the tax matters of another company or organisation and you have been granted a authorisation by any of the following:

  • companies (limited companies, housing companies and real estate companies)
  • foundations and associations
  • public organisations (such as municipalities and parishes)
  • partnerships (such as agricultural, forestry and business partnerships)
  • estates with a Business ID
  • benefits under joint administration.

Taking care of taxes for a foreign company or for a foreign citizen: login with a Finnish Authenticator token or with eIDAS

For logging in to MyTax, etc., the Finnish Authenticator is for authentication and personal identification of foreign companies’ representatives who do not have a Finnish token.

The representative will also need a authorisation to deal with taxes on the foreign company’s behalf.

At present, the only e-service accepting eIDAS-based login is the Tax Administration’s electronic service portal. Users can submit a limited number of reports and information requests through this e-service, which is available to both individuals and corporate entities from other countries.

Login for EU citizens based on the eIDAS

Several e-services are available to EU citizens through eIDAS-based identification. Later, login keys based on the eIDAS will be available for a wider range of the Finnish Tax Administration’s e-services than today.

Read more about eIDAS

Frequently asked questions

To get online banking codes you must sign an agreement with your bank. Note that only personal online banking codes enable you to log in to our e-services.

A mobile certificate is an identifier in your mobile phone’s SIM card. 

If the mobile certificate is in an employee’s business phone, it is not regarded as taxable income for the employee. If the certificate is in the employee’s private phone and is used for business purposes, the employer must give the employee a tax-exempt reimbursement for the expense against a receipt.

Read more about the mobile certificate at

A certificate card is an ID card containing a citizen certificate or an organisation card containing an organisation certificate. ID cards are issued by the police, whereas organisation cards are issued by the Digital and Population Data Services Agency. 

If the employer acquires an ID card for an employee, the card is regarded as taxable earned income for the employee. An organisation card, on the other hand, is not regarded as taxable income. If the employer has bought a card reader and it will remain in the employer’s use, the reader is not regarded as a taxable benefit for the employee.

Read more about certificate cards on the Digital and Population Data Services Agencys website: Certificates and cards for organisations

If you use a strong personal identifier to log in, your authorisation is no longer checked in the list of Katso service authorisations. You need a authorisation to replace the Katso authorisation.

When you identify yourself to the service with your online banking codes, a mobile certificate or a certificate card, your authorisation to handle matters on behalf of the organisation will be checked with the

  • Trade Register
  • Business Information System (BIS)
  • Register of Associations
  • Authorisations service.

It is not possible to log in to MyTax with an EU citizen’s eIDAS identifier. To log in to MyTax, users have to identify themselves via the e-Identification service. At the moment, e-Identification displays eIDAS as one of the identification methods for foreigners even though it is not yet possible to use MyTax with eIDAS identifiers.

See for more information about the identification tokens of other countries

Identification without Finnish ID – eIDAS identification for EU citizens

Page last updated 6/28/2023