Form RF-1117
There’s an error in my tax assessment for earlier years
If you believe there’s an error in your tax assessment for 2021 or 2022, you can submit an appeal.
How to do it
You submit the request directly in your tax return for 2021. You can find your tax return by logging in to My tax:
This is what it looks like in the tax return:
In the tax return, this message will appear when the 3-year period for self-correction has passed. After this point, you must submit a request for change.
You tax return is locked for changes
If you want to submit new information, you must provide an explanation of why you want the change. The Tax Administration will consider your request for change.
You submit the request directly in your tax return for 2021. You can find your tax return by logging in to My tax:
If you do not submit the request in the tax return, you can write to us. In the field where you describe what the enquiry is about, you must:
- state that you are requesting a change to the tax return for 2021
- explain why you believe it is incorrect
We’ll assess whether there are grounds to change your tax assessment. You’ll receive a written reply from us.
You submit the request by writing to us. In the field where you describe what the enquiry is about, you must:
- state that you are requesting a change to the tax return and specify which year it concerns
- explain why you believe it is incorrect
- you can complete and attach the tax return for 2021 (PDF) or the tax return for 2022 (PDF).
We’ll assess whether there are grounds to change the tax assessment. You’ll receive a written reply from us.
The income year 2023 or later
If you believe there’s an error in your tax assessment for 2023 or later, you can change the tax assessment yourself.
See what you have to do to change your tax return yourself or submit an appeal