04.031 EN - Supplement to tax return for taxpayers with limited tax liability

Purpose of the form

Use this form to report supplementary information to your tax return (limited tax liability), if you wish to be taxed according to title 1A of the Danish Withholding Tax Act. 

The form should be submitted together with your tax return.

You can report the information via E-tax (TastSelv) under ‘Ret årsopgørelsen' (Change your tax assessment notice).

You can see and complete your tax return for 2025 online in E-tax (TastSelv) from 23 March.

How to download and complete the form

Download form 04.031 EN 2025 (PDF)

Form 04.031 EN 2024
Form 04.031 EN 2023 

You may find help in our video:

• Guide to E-tax, Information for cross-border workers

Please note that when you complete the form you should:

• save the form on your computer before you start completing it
• avoid using Microsoft Edge, Safari or Mac’s image viewer 

How to submit the form

If you submit the form by email as an attached file, please save the file on your computer before attaching it to avoid losing unsaved data.

You can submit the completed form by logging on to E-tax (TastSelv) and selecting:

Contact > Write to us -> Submit tax return for 2025 > Tax return for non-Danish tax matters.

You can also send it by regular post to:

Skattestyrelsen
Postboks 9
Nykøbingvej 76
4990 Sakskøbing
Denmark

You will not receive your printed tax raturn until late May 2026. If you submit your tax raturn on paper, we will send you your tax assessment notice by the end of 2026.