If you live in Denmark, the Danish tax authorities — SKAT — take a view of your finances that extends well beyond the country’s borders. They expect you to declare and pay tax on your worldwide income, not simply the earnings you receive inside Denmark. For expats and international residents, this is one of the most important points to get to grips with, because overlooking foreign income on your tax return can lead to penalties, back taxes and interest charges that quickly become expensive.
This guide walks through how Denmark taxes foreign income, what you are expected to declare, and the mechanisms — chiefly the foreign tax credit and double taxation agreements — that are designed to stop you from paying tax twice on the same money.
Worldwide taxation
Denmark operates on a worldwide taxation principle. If you are a tax resident of Denmark — which typically means living in the country for more than six months — you must declare all of your foreign income. That includes dividends, interest, capital gains, rental income, employment income, and anything else you receive from abroad.
This applies regardless of where the income originated or whether another country has already taxed it. The key relief mechanism is the foreign tax credit, covered later, which is intended to avoid double taxation.
Employment income
If you work in Denmark, your salary and employment benefits are taxed in Denmark regardless of where your employer is based. When your working time is split between countries — for example, part of the year in Denmark and part in Sweden — the double taxation agreement between Denmark and the other country determines which one holds the primary taxing rights.
As an example, a Danish tax resident who spends part of the year working in Sweden will find that the Denmark–Sweden DTA sets out how the income is divided between the two countries. It is always worth checking the specific agreement that applies to your own situation.
Investment income
Foreign investment income is fully taxable in Denmark. The main categories and their treatment are:
- Dividends from foreign companies — taxed at 27% on the first DKK 58,900 (2026 threshold) and 42% above that threshold
- Capital gains from foreign shares — taxed at the same rates as dividends (27%/42%)
- Interest from foreign accounts — taxed at your marginal tax rate (up to 52.07% top rate)
You must report all of this on your annual return through TastSelv. SKAT does not automatically receive information from foreign brokers, so the responsibility for accurate reporting rests with you.
Rental income from abroad
If you own rental property outside Denmark, the net rental income is taxable in Denmark at your marginal tax rate. You can deduct the expenses connected to the property — mortgage interest, maintenance, insurance and management fees — but the net amount is then added to your Danish taxable income.
Foreign rental income is declared in box 475 of your tax return. If the property sits in a country that also taxes that income, you may be able to claim a foreign tax credit for the tax paid abroad.
Foreign tax credit
The foreign tax credit is the primary mechanism preventing double taxation. If you have paid tax in another country on income that is also taxable in Denmark, you can deduct that foreign tax against your Danish tax liability on the same income.
The key rules to understand:
- The credit is limited to the Danish tax rate on that specific income
- You cannot receive a refund if the foreign tax exceeds the Danish tax — the credit simply reduces your Danish tax to zero
- Declare the credit in box 496 of your tax return
- You must provide documentation of the foreign tax paid
As a simple illustration: if you earned DKK 100,000 in interest abroad and paid DKK 20,000 in foreign tax, and the Danish tax on that income would be DKK 52,070 (at the top rate), the credit of DKK 20,000 leaves you paying DKK 32,070 in Denmark.
Double taxation agreements
Denmark has double taxation agreements with over 70 countries. These are intended to stop you from being taxed twice on the same income. Each DTA specifies which country has the primary taxing rights and sets maximum withholding rates.
Typical DTA rates include:
- Dividends: 15–27% (varies by country)
- Interest: 0–15% (often 0% for government bonds)
- Royalties: 0–15%
The relevant agreement for your home country is published on SKAT’s website. Because a DTA can override Danish domestic law, it is worth understanding the terms that apply to your particular situation rather than assuming the default position.
CFC rules
If you own or control a company in a low-tax country, Denmark’s CFC rules may come into play. Under these rules, certain types of income earned by the foreign company — such as dividends, interest, royalties and capital gains — can be taxed directly in Denmark even if the money has not yet been distributed to you as a shareholder.
These rules exist to stop Danish residents from deferring tax by channelling income through companies in low-tax jurisdictions. If you hold a foreign company, it is worth consulting a tax advisor to establish whether the CFC rules apply to you.
Exit tax
Leaving Denmark with shares or other assets worth more than DKK 100,000 means you will be subject to an exit tax. Denmark treats you as though you sold all your shares on the day you left, and any gains are taxed at the standard rates (27%/42%).
You can defer the exit tax by reporting the shares annually and paying tax on the gains as they arise. If you fail to report, however, the full gain may be assessed once SKAT discovers the omission. For expats who have built up investments during their time in Denmark, this is a significant consideration, and it is wise to plan ahead and seek tax advice before emigrating.
Reporting requirements
As a Danish tax resident with foreign income, you are expected to declare:
- All foreign bank accounts and their balances
- All foreign investments (shares, bonds, funds, pensions)
- All foreign income (dividends, interest, capital gains, rental income)
- All foreign tax paid
The consequences of failing to report can be serious:
- Penalties — fines for negligent or intentional misreporting
- Back taxes — SKAT can assess additional tax going back several years
- Interest charges — daily interest on unpaid tax
SKAT receives information from foreign tax authorities through international exchange agreements, so undeclared foreign income is likely to come to light eventually. It is far better to report accurately and openly from the start.
Common mistakes
Expats and international residents frequently make the same kinds of errors:
- Not declaring foreign dividends — assuming they are only taxed in the source country
- Not claiming the foreign tax credit — ending up paying tax twice on the same income
- Forgetting to report foreign accounts — even dormant accounts must be declared
- Not understanding the DTA — assuming Denmark will not tax income that is already taxed abroad
A worked example
A Danish resident receives DKK 50,000 in dividends from a US company.
| Step | Calculation |
|---|---|
| US withholding tax | 27% × DKK 50,000 = DKK 13,500 (paid to US) |
| Danish tax on dividends | 27% × DKK 50,000 = DKK 13,500 |
| Foreign tax credit | DKK 13,500 (declared in box 496) |
| Net Danish tax payable | DKK 13,500 − DKK 13,500 = DKK 0 |
| Total tax paid | DKK 13,500 (to the US) |
The foreign tax credit ensures you pay the same total tax regardless of which country collects it. Here the US withholding rate matches the Danish dividend rate, so no additional Danish tax is due.
Practical points to remember
Clear record-keeping makes the whole process far more manageable. Retain statements, tax certificates and documentation from every foreign income source, always declare foreign tax paid in box 496, and check the specific DTA between Denmark and your home country. Run everything through TastSelv so SKAT has a complete and accurate picture, and consult a tax advisor if your affairs are complex — whether that means foreign company exposure, CFC risk, or an impending move out of Denmark.
A final word
Denmark taxes residents on their worldwide income, which means foreign income, investments and accounts all need to be declared. The foreign tax credit and the network of double taxation agreements exist precisely to prevent you from being taxed twice. Keep thorough records, claim the credits you are entitled to, and use TastSelv to report everything accurately. When in doubt, a tax advisor who understands cross-border taxation is worth the cost.