Tax Assessment and Your Annual Return in Denmark
Reviewed by the Commoner Law Editorial Team. Sourced from Danish Acts of Parliament (love), executive orders (bekendtgørelser), and official government guidance. Written in plain language for general understanding — this is educational content, not legal advice. Our editorial standards
What is this right?
Denmark operates a pre-filled tax return (årsopgørelse) system:
- Each March, Skattestyrelsen (the Danish Tax Agency) prepares a pre-filled return based on data from employers, banks, pension companies, and public registers.
- You can view and correct your return on skat.dk — the deadline is typically 1 May for wage earners.
- If you have additional income (self-employment, foreign income, capital gains), you must report it yourself — the extended deadline is 1 July.
- Preliminary tax (forskudsopgørelse): You can adjust your expected income for the current year to change monthly withholding — avoiding a large bill or refund later.
- Overpayment: If you overpaid tax, the refund is paid automatically — typically in April.
When does it apply?
- You are a tax resident in Denmark (full or limited tax liability).
- You receive your årsopgørelse each spring and need to verify it.
- You have income sources not automatically reported (freelance, foreign, rental).
What to Do If Your Skat Tax Assessment Is Incorrect in Denmark
- Review your årsopgørelse on skat.dk as soon as it is available — check that deductions, income, and personal allowances are correct.
- Report additional income (e.g., rental income, foreign earnings, crypto) before the deadline.
- If you disagree with the assessment, you have 3 years (ordinary period) to request a correction, or 4 months from the assessment date to file a formal objection.
- Adjust your forskudsopgørelse if your income changes during the year.
What should you NOT do?
- Don't assume the pre-filled return is correct — the data may be incomplete, especially for freelance income, foreign assets, or deductions.
- Don't miss the 1 May (or 1 July) deadline — late filing may result in penalties.
- Don't ignore a request for additional information from Skattestyrelsen — failure to respond can lead to an estimated assessment (skønsmæssig ansættelse), which is often unfavourable.
Common Questions
How does the Danish tax return system work?
Each March, Skattestyrelsen prepares a pre-filled return (årsopgørelse) based on data from employers, banks, pension companies, and public registers. You view and correct it on skat.dk. Wage earners have until 1 May to make changes; people with additional income such as self-employment, foreign income, or capital gains have until 1 July.
What is a forskudsopgørelse and why does it matter?
The forskudsopgørelse is your preliminary assessment of expected income for the current year. Adjusting it changes your monthly withholding, helping you avoid a large bill or oversized refund later. If you overpaid tax, the refund is paid automatically, typically in April. If you underpaid, you'll owe the difference as restskat.
How long do I have to correct a Danish tax assessment?
You have up to 3 years (the ordinary period) to request a correction, or 4 months from the assessment date to file a formal objection. Don't assume the pre-filled return is correct — data may be incomplete for freelance, foreign, or rental income. If Skattestyrelsen requests more info, respond promptly or you may get an unfavourable estimated assessment.
When does it apply — tax assessment and your annual return?
You are a tax resident in Denmark (full or limited tax liability).You receive your årsopgørelse each spring and need to verify it.You have income sources not automatically reported (freelance, foreign, rental).
What should I do if my Danish årsopgørelse from Skattestyrelsen contains errors or missing income?
Review your årsopgørelse on skat.dk as soon as it is available — check that deductions, income, and personal allowances are correct.Report additional income (e.g., rental income, foreign earnings, crypto) before the deadline.If you disagree with the assessment, you have 3 years (ordinary period) to request a correction, or 4 months from the assessment date to file a formal objection.Adjust your forskudsopgørelse if your income changes during the year.
What should you NOT do — tax assessment and your annual return?
Don't assume the pre-filled return is correct — the data may be incomplete, especially for freelance income, foreign assets, or deductions.Don't miss the 1 May (or 1 July) deadline — late filing may result in penalties.Don't ignore a request for additional information from Skattestyrelsen — failure to respond can lead to an estimated assessment (skønsmæssig ansættelse), which is often unfavourable.