Tax returns from previous years
You can make changes to your tax return if you discover errors or if you receive new or delayed information.
Change your tax returns for 2022, 2021 or 2020
If you find errors or if you receive new or delayed information for these years, you can change the tax return.
You make changes by:
You can also change your tax return by sending a correction.
Tax returns for 2019 or previous years
If you find that something is incorrect or missing from your tax return for 2019 or previous years, you can make changes by submitting an appeal to the Tax Administration.
You’ll find your tax return for 2019 or earlier in Altinn.