From 14 April on, when you log in to MyTax you will activate Suomi.fi Messages. Tax correspondence will be delivered electronically only, in MyTax. Read more about the changes.
Tax decision and tax certificate
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Mail delivery will change
From 14 April on, when you log in to MyTax you will activate Suomi.fi Messages. Tax correspondence will be delivered electronically only, in MyTax. This means a transition from paper: your next tax decision and information on tax refunds or back taxes, etc. will be sent in electronic format only. Read more about the changes.
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Most taxpayers receive a tax decision together with the pre-completed tax return in March. The tax decision is a summary of the tax assessment of your previous year’s taxes.
The tax decision contains
- a calculation of the final result of the tax assessment
- the amount and date of payment of any tax refund you may receive
- the amounts and due dates of any back taxes you may need to pay
- the end date of your personal tax assessment.
When the tax decision is ready, you can find it in MyTax.
How to find the tax decision in MyTax
If you find an obvious calculation error in the tax decision, call our service number, which is stated on the decision. That way we can correct the error before your tax assessment ends.
In what situations do I receive a new tax decision?
The tax decision information may change if we receive new information affecting your tax assessment.
You will receive a new tax decision if
- you make corrections to your pre-completed tax return, for example if you claim deductions
- your spouse makes corrections to their tax return
- the Tax Administration receives corrected information from other sources, such as from your employer
- your tax information is selected for more detailed examination.
Esimerkki alkaa
You will receive a new tax decision between May and October, as soon as the processing of your and your spouse’s tax information is completed. We send new tax decisions to taxpayers in random order, and you cannot hasten your tax decision.
Esimerkki päättyy
If you use Suomi.fi messages or electronic tax mail, you will receive an email notification or a text message when the new tax decision is available in MyTax. Note that the tax decision will be sent to your home address by post only if you do not use Suomi.fi messages or electronic tax mail.
More information about Suomi.fi messages and electronic tax mail.
If you do not receive a new tax decision, the tax decision, tax certificate and bank transfer forms for back taxes that you received in the spring remain valid.
The tax refund date and the due dates for back taxes may change
If you receive a tax refund or must pay back taxes, it is stated on the tax decision. The tax refund date and the due dates for back taxes are taxpayer-specific and you can see them on your tax decision. Tax refunds are paid between July and December, and the due dates for back taxes are between July and February.
- If you make corrections to your tax return, you will receive a new tax decision. In that case, the tax refund date or the due dates for back taxes are likely to be postponed. You can find the new payment date or due dates on the new tax decision. If you must pay back taxes, you will receive new bank transfer forms together with the corrected tax decision in MyTax. Note that we will send the tax decision and bank transfer forms to your home address by post only if you do not use Suomi.fi messages or electronic tax mail.
- If you do not make any corrections to your tax return, the tax decision, tax certificate and any bank transfer forms for back taxes that you received in the spring remain valid. In other words, you will not receive a new tax decision unless your or your spouse’s tax information changes.
Why does the tax return not say if I have to pay back taxes or will receive a tax refund?
If the amount of your tax refund or back taxes is not stated on the tax return, you have not yet received a tax decision. You receive a preliminary tax calculation rather than a tax decision with your pre-completed tax return if the Tax Administration has not yet received all your or your spouse’s tax information. A preliminary tax calculation is sent to entrepreneurs and agricultural operators, for example, and to individuals with rental income or capital gains.
Check the tax return and make additions or corrections if necessary. You will receive a tax decision when the processing of both your and your spouse’s tax returns is finished, by the end of October at the latest.
Wait for the tax decision before you pay
The preliminary tax calculation is an estimate of your tax refund or back taxes at the time when the tax return is created. Note that the estimated amount may change. Do not pay back taxes based on the preliminary calculation.
Read more about the preliminary tax calculation.
You can find the information for paying back taxes in MyTax
If you have misplaced your bank transfer forms, you can check the payment details in MyTax. You can also pay the tax as an online payment in MyTax.
If necessary, call our service number 029 497 026 (Payment transactions, limited service in English, standard call rates). On the service number, you can receive the information you need to make payments.
Keep the tax decision and tax certificate
The tax decision contains an itemisation of your tax information. You may need your tax decision for instance if you apply for a rental apartment or if you are charged day care fees. Details on wage payers or other income payers are stated on the pre-completed tax return.
Keep the pre-completed tax return, tax decision and tax certificate. You can later print them out from MyTax if necessary.
How to find the tax decision or tax certificate in MyTax
Where can I find tax decisions for previous tax years?
MyTax contains tax decisions for 2018–2025. Tax decisions for 2017 or earlier are not found in MyTax. If you need a tax decision or tax certificate for 2017 or earlier, call our service number 029 497 002 (Income taxes of individual taxpayers, limited service in English).
Frequently asked questions
You may have received a notice of continued tax assessment for these reasons:
- the Tax Administration has received information from other sources which affects your tax assessment
- tax control measures are ongoing
There is no need for you to contact the Tax Administration.
You will receive a new tax decision by the end of October. The new tax decision will probably affect your tax refund date or due date for back taxes. The final assessment (amount of tax refund or back taxes and related interest) may also change.
Further information: tax refunds and back taxes
No, it does not. Due date for tax returns is not the same as the end date of your tax assessment process.
The due date for the tax return means the day when taxpayers can still add information and make corrections to the Pre-completed return that they have received. These dates are 1 April, 14 April, 21 April and 28 April in 2026. The due dates may vary. Please check yours on the Pre-completed tax return’s first page – or log in to MyTax to check it.
The end date of assessment is the day when the Finnish Tax Administration’s taxation process is ended. By that date, the corrections, additions, and other changes to your tax return will all be handled. You can see the end date for your assessment on the “tax decision”, which is in MyTax.
The tax assessment end date has an impact on a number of things, including:
- It determines the date when any tax refunds are paid to you, or it may determine the due date of your back taxes.
- If you check your assessment information but do not notice an error until after the end date, you will be required to make a formal claim for adjustment.
- Certain requests and claims must be submitted before the end date of assessment. If these requests and claims are not submitted in time, no appeals can be filed against the resulting tax assessment based on them. These include requests for income spreading agreements, requests for dividing the credit for household expenses between spouses, and requests for periodized taxation of pension income.
If you need a certificate of your income for purposes other than taxation, for matters like submitting an application for a rental apartment, or when your family member is studying in a foreign country:
- You can print out a tax certificate and a tax decision in MyTax.
- How to find letters, tax decisions and tax certificates in MyTax
- You can also request a certificate by calling our telephone service on 029 497 046 (Tax certificate). Please tell us whether a Finnish tax authority’s signature is needed. If it is needed, please inform us of it over the phone.
If you need the certificate in English, you must have it translated at your own expense. The guidance What does the tax return look like has a link to an example of a tax decision in Finnish that includes English translations of the key terms. The example decision may be of help to you.
If you have come to Finland recently to start living here and you have not yet received a tax decision, you can ask the Tax Administration to prepare a certificate proving that your income has not been taxed in Finland. To request this certificate, call the Tax Administration (international income taxes) on 029 497 024.
- You can print out a tax certificate and a tax decision in MyTax.
- How to find letters, tax decisions and tax certificates in MyTax
- You can also request a certificate by calling our telephone service on 029 497 046 (Tax certificate).
- You can request a certificate that is in English in MyTax or by calling us on 029 497 024 (International income taxation of individuals).
Please write up an accompanying letter, and send the paper template to us by post. We can complete it to issue you the certificate of income, place of residence, etc.
The address is: Verohallinto, Kansainvälinen henkilöverotus PL 1, 00052 VERO.
Do not forget to add your telephone number so we can contact you if necessary.
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