Decoding Your Annual Tax Return (Årsopgørelse)
Every March, SKAT releases the final tax numbers for the previous year. Here’s a visual guide to checking your assessment, adding missing deductions (like commuting), and avoiding back-tax surprises.
The March Routine
The system handles most things automatically, but it doesn’t know everything. Your job is to double-check and fill in the blanks.
Step-by-step checklist
Don’t panic when you see the numbers. Just follow these steps before the May 1st deadline.
The big reveal: Green vs. Red
When you first log in, SKAT greets you with a giant number. Knowing what the color means stops the panic immediately.
- Good news: You paid too much tax last year!
- SKAT owes you money.
- This will be paid out automatically to your NemKonto in early April.
- Bad news: You paid too little tax last year.
- You owe SKAT money.
- You must pay this back, usually before July 1st, to avoid high day-to-day interest charges.
Verify income and tax paid
Employers report your income directly to SKAT, but mistakes happen. If your income is reported too high, you overpay on taxes.
- Check “Lønindkomst” (Salary income).
- Check “Indeholdt A-skat” (A-tax withheld).
- Check “AM-bidrag” (The 8% labor market contribution).
- Pull up your final payslip from December of that tax year.
- Look for the Year-to-Date (YTD) totals at the bottom.
- These numbers should match exactly what SKAT shows.
Add missing deductions (The big money saver)
SKAT automatically applies basic deductions, but they do NOT know how many days you actually commuted to the office.
- If you travel more than 24km round-trip to work, click the calculator icon next to Box 51.
- Remove days you worked from home, were sick, or took vacation.
- It doesn’t matter if you took the train, bus, car, or bike!
- Box 460: Servicefradrag (If you paid for a cleaner or babysitter, deduct part of the labor cost).
- Box 56: Rejsefradrag (Food/accommodation expenses for specific work trips).
- Note: A-kasse, unions, and bank interest are usually reported automatically.
Paying Restskat (If you owe money)
If your number stayed red, you need to clear the debt efficiently to avoid high Danish interest rates.
- You can pay via Dankort, MobilePay, or bank transfer directly inside SKAT.
- Pay before July 1st to avoid the day-to-day interest (dag-til-dag-rente) locking in as a permanent penalty surcharge.
- If the amount is under roughly 23,000 DKK, SKAT will automatically add it to your tax bill for the *following* year.
- While convenient, you will pay a fixed percentage surcharge for this “loan,” meaning it costs you more in the long run.
Fix the future: Forskudsopgørelse
The Årsopgørelse looks backwards at last year. To stop a red number next year, you must fix your *preliminary* assessment for the current year.
- You probably estimated your income too low in January.
- You got a salary increase mid-year and didn’t tell SKAT.
- You claimed a deduction (like commuting) but stopped going to the office.
- Click “Forskudsopgørelse” (Preliminary Income Assessment) in the top menu.
- Update your expected salary for *this* year.
- Generate a new tax card (Skattekort) so your employer taxes you correctly moving forward.
FAQ
Deadlines and payout details.
When exactly is the tax refund paid out?
If you have a green number (overskydende skat) and you don’t owe debt to public authorities, the money is typically transferred to your NemKonto automatically in mid-to-late April.
What is the deadline for making changes?
The standard deadline to log in, add deductions, and approve the Årsopgørelse is May 1st. (If you have a complex tax situation, such as running a business or owning foreign property, the deadline is usually July 1st).
Can I go back and fix a previous year’s tax return?
Yes! If you realize you forgot to claim your commuter deduction three years ago, you can reopen old tax assessments on SKAT.dk (usually up to 3 years back) and enter the missing info to claim the refund.
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