Pre-completed tax return

If you made corrections to your tax return, you will get a new tax decision. In that case, the payment date of your tax refund or the due dates of your back taxes will probably be postponed. You can find the new payment or due dates on the new tax decision.

Frequently asked questions

Back taxes

For most taxpayers, the first due date for back taxes is 1 August or 2 September 2019. You can see your due dates and payment details on your tax decision or in MyTax.

Frequently asked questions

Tax number

Everyone working at a construction site or on an installation project must have a tax number. You can get your tax number at a tax office. If you already have a tax number, ask for it to be included on the public register of tax numbers. You can start working at the construction site after your tax number is registered.

Frequantly asked questions

Important Dates and Deadlines

23 July Due date of prepayments.  If the Tax Administration finishes your assessment process on this day or on an earlier date in July, your tax refund will be used on this tax on 23 July.

29 July The final date when there is still enough time to log in to MyTax to submit your bank account number for the refunds in August.

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