Form RF-1366

Correction of wealth and income tax for personal taxpayers

Use this form to submit a correction if you want to change your tax return for the 2020, 2021 or 2022 income years.

If you find that something is incorrect or missing from your tax returns for 2019 or previous years, you can make changes by submitting an appeal to the Tax Administration. You cannot submit a correction or use this form.

Who can submit a correction?

Wage earners, pensioners or self-employed persons can submit a correction. Private limited companies etc. must submit a new complete tax return.

If you’ve received a notification or a decision regarding changes made to your tax return

You cannot submit a correction if you’ve received a notification or a decision from the Tax Administration regarding information in your tax returns for 2020, 2021 and 2022 that you now want to change yourself.

Instead, you must do the following:

• If you do not agree with the notification of change that you’ve received, you must send a reply to the Tax Administration.
• If you do not agree with the decision of change that you’ve received, you must send an appeal to the Tax Administration.

Deadlines for submitting corrections

For the 2022 income year

• wage earners and pensioners  -  30 April 2026.
• self-employed persons - 31 May 2026.

For the 2021 income year

• wage earners and pensioners  -  30 April 2025.
• self-employed persons - 31 May 2025.

For the 2020 income year

• wage earners and pensioners  -  30 April 2024.
• self-employed persons - 31 May 2024.

For the 2019 income year

• wage earners and pensioners - 30 April 2023.
• self-employed persons - 31 May 2023.

This is how you do it

• Log in to My tax, scroll down to "My tax documents".
• Select "Go to my tax documents".
• Select the income year you want to change.

• You will be redirected to form RF-1366 - Changing of tax return

In the form RF-1366

• Enter your e-mail address and your telephone number
• Choose the relevant category of items you want to change or add from the drop-down list. The drop-down list does not contain a complete overview of all items in the tax return, and you must therefore choose the main category that is relevant.
• Enter the amount you want to change (incorrect/missing amount) in the field “Change from” and the amount you want to change it to (the correct amount) in the field “Change to”. If you’ve added a new item, you must enter “0” in the field “Change from” and the new correct amount in the field “Change to”.
• Under "Additional information”, you must give a description of the change. You must either state the item number you want to change (you can find this in your tax return) or give a short description of which type of income/deduction/wealth item the change relates to. Any other information concerning the change can also be included here.
• If you want to change more items, click on “Add new item you want to change” and follow the bullet points above.

Attachment forms

• There are mandatory attachment forms linked to some of the items in the tax return. If you change such items, you must also make sure you re-submit the relevant attachment forms.
• You’ll find all the attachment forms as a part of form RF-1366. You’ll find them on the left side of the screen, in a separate tab.

You’ll find more guidance to all the items in the older tax returns at skatteetaten.no/finditem.

You must attach an income statement and other relevant attachment forms that are affected by the change.

You cannot attach a changed Business Tax Return for sole proprietorships to the correction. Instead, you must describe the change in the field for additional information, or attach an income statement and other relevant attachment forms affected by the change.

If you’re unsure which attachment forms you must re-submit, you can contact us.

What will happen after you have submitted 

When you’ve signed and submitted the correction, you’ll receive a receipt in your Altinn inbox.

The correction will then be registered by the Tax Administration. If the change(s) affect your taxes, you’ll receive a new tax assessment notice. You’ll not receive a new tax assessment notice if the changes do not affect your taxes.