Denmark researcher tax scheme for Americans

Danish income tax is high, and that is often the first thing Americans hear about when a job offer from Copenhagen or Aarhus arrives. Denmark has a special regime that changes the numbers for some new arrivals: the tax scheme for researchers and highly paid employees, often called the researcher tax scheme or forskerskatteordningen. This guide sets out who qualifies, what rate applies, how long it lasts, and how it interacts with your US tax return. The rules come from the Danish Tax Agency (Skattestyrelsen) on skat.dk and from the IRS.

What the scheme does

Skattestyrelsen explains that if you meet the conditions, your gross earned income from the qualifying job is taxed at 32.84%. That figure is the 8% labour market contribution plus a flat 27% tax. No deductions are allowed against income taxed under the scheme. The scheme applies for a period of up to seven years (84 months). Any other income you have, such as investment income, is taxed under the ordinary Danish rules, so you may still need a regular tax card for that.

Who qualifies: two groups

Highly paid employees. These are key employees with a guaranteed monthly salary at or above a threshold set each year. Skattestyrelsen lists DKK 65,400 per month for 2026 and DKK 67,300 for 2027. The salary is measured before labour market contributions and ATP, and it must be guaranteed for the whole period of employment in the agreement.

Researchers. These are people who conduct research and hold a research-qualifying degree at minimum PhD level, and who have been accepted under the applicable rules. Researchers can qualify without meeting the salary threshold.

In both cases, the employer must be a Danish business or research institution, and the employment must be covered by Danish tax rules.

The 10-year rule

The condition that most often trips up returning expats is prior Danish tax liability. Skattestyrelsen states that if you have worked in Denmark within the past 10 years without being covered by the scheme, you are disqualified. If you lived in Denmark as a student, or were a Danish tax resident for another reason in that window, read the agency's FAQ carefully and confirm with your employer before you sign on the basis of the lower rate.

Seven years, used once

The scheme runs for up to 84 months in total. You can split the period across more than one qualifying job, but once the months are used, they are gone. If you leave a qualifying job and do not start a new one that qualifies, Skattestyrelsen warns you may lose the right to use any remaining months. When the period ends, you move to ordinary Danish tax rates on the same salary, so plan your budget for the step up in year eight.

How you get on the scheme

Your employer applies the scheme in payroll. In practice, the employment contract states the guaranteed salary, and the employer reports you to Skattestyrelsen as covered. Ask HR whether they have handled the scheme before, check that your first payslip shows the scheme rate, and keep a copy of the contract with the salary guarantee.

Your US tax return

As a US citizen you still file a federal return every year, wherever you live. The IRS explains that you report worldwide income and can use either the foreign earned income exclusion or the foreign tax credit to reduce double taxation.

• Foreign earned income exclusion. For tax year 2026, the IRS lists a maximum exclusion of $132,900 per qualifying person. You must meet the bona fide residence test or the physical presence test.
• Foreign tax credit. You can claim a credit for income taxes paid to Denmark. Because Danish tax is often higher than US tax on the same income, the credit can eliminate US tax on wage income, and unused credits can carry over under IRS rules.

The lower Danish rate under the scheme changes this calculation. With 32.84% Danish tax instead of the higher ordinary rates, your foreign tax credit is smaller, and at higher salaries the comparison between the exclusion and the credit can differ from what colleagues on ordinary Danish tax experience. Run both options or work with a preparer who handles US expat returns.

The United States and Denmark have an income tax treaty. The IRS publishes the treaty documents, and the saving clause generally preserves the US right to tax its citizens, so the treaty mainly helps through the credit mechanism rather than exempting you from US tax.

A worked comparison of the choices

Consider how the pieces interact in general terms. Under ordinary Danish rules, a well-paid employee pays municipal and state income tax plus the labour market contribution, and the total usually exceeds what the same salary would owe in US federal tax. For that person the foreign tax credit tends to wipe out US tax on wages and leaves excess credits. Under the scheme, the Danish total is fixed at 32.84% of gross earned income. Whether that is above or below the US tax on the same income depends on the salary, filing status and deductions on the US side. If the Danish tax is lower, a credit alone may leave some US tax due, and the exclusion may be worth comparing. If the salary is far above the exclusion amount, the credit usually still matters for the excess. The only reliable way to know is to prepare both versions of Form 1040 with Form 2555 and Form 1116.

Leaving Denmark during the scheme

If you leave Denmark partway through the 84 months, the unused months do not convert into anything else. Your final Danish tax assessment covers the scheme income for the months you worked, and your US return for the year of departure needs a careful split between the period abroad and the period back in the US, since the physical presence and bona fide residence tests count days and residence dates.

Reporting your Danish accounts

Your Danish salary account and any pension accounts may need to be reported to the US. FinCEN Form 114 (FBAR) is required if the total of your foreign accounts exceeded $10,000 at any time in the year. Form 8938 under FATCA has higher thresholds for taxpayers living abroad: the IRS lists $200,000 at year end or $300,000 at any time for single filers, and $400,000 or $600,000 for joint filers.

Questions to ask before you sign

• Is my salary guaranteed at or above the scheme threshold for the whole contract?
• Have I had any Danish tax liability in the past 10 years?
• Will the employer report me under the scheme from my first payroll?
• What happens to my remaining months if I change jobs?
• How will my US return treat the lower Danish tax: exclusion or credit?

Common questions

What is the tax rate under Denmark's researcher scheme? Skattestyrelsen states that qualifying earned income is taxed at 32.84%, made up of the 8% labour market contribution and a flat 27% tax, with no deductions.

What salary do I need in 2026? Highly paid employees need a guaranteed monthly salary of at least DKK 65,400 in 2026. Skattestyrelsen lists DKK 67,300 for 2027. Researchers with a qualifying PhD-level degree are not bound by the salary threshold.

Can I use the scheme if I worked in Denmark before? Not if you worked in Denmark in the past 10 years without being covered by the scheme. Skattestyrelsen says that disqualifies you.

Do I still file a US tax return? Yes. US citizens file every year on worldwide income and can use the foreign earned income exclusion or the foreign tax credit to reduce double taxation.