Important information

Updated forms for 2022 will be made available here before 16 February. 

Form RF-1151

Power plant owner – summary for all power plants

The form must be submitted by all who own a hydropower plant.

Sole proprietorships must submit the new tax return for businesses

This year, sole proprietorships will receive the tax return in a new format and must submit it via an accounting system or In the new tax return, all the income statements and attachment forms has been replaced with a business information statement attached to the tax return.

The guidance on this page therefore only applies to those who cannot submit the tax return in new format yet.

This year, this applies to all private limited companies and other legal structures that must submit via an accounting system and in Altinn as they used to.

You get relevant help and guidance when you log in and fill in your tax return, whether you do it in your accounting system, on, or in Altinn.

In the guide you will find help to completing the form online i Altinn.
All forms and guidelines in Norwegian only.

You need to submit electronically. Businesses can use the paper form as a preparation and guide for completing the form online i Altinn.

If you discover errors, or have received new or delayed information, you can still change and re-submit the tax return with attachment forms for 2018, 2019 and 2020.

You can use the older forms as a guide if you need to change anything in previously submitted tax returns.