Tax fraud in Denmark: where a mistake ends and a crime begins (2026)

Last reviewed: November 2026 · Reviewed by Stéphane Gombauld, tax expert, technologist and digital nomad

You live in Denmark or earn Danish income, and you have money coming from several countries. You want to know where an honest mistake ends and a punishable offence begins. After reading, you will know the three levels of fault, the 2026 penalties, how far back Skattestyrelsen (the Danish Tax Agency) can go, and how to fix an error first.

Denmark tax fraud regulations in 2026: the key figures

What changed for 2026

• Crypto data now flows to the tax agency. The EU DAC8 directive applies from 1 January 2026, with the first exchange for 2026 due by 30 September 2027.
• Digital bookkeeping is mandatory for more businesses. From 1 January 2026, sole traders with net turnover above DKK 300,000 in two consecutive years must keep their books digitally, per the Danish Business Authority.
• Same penalty framework. §§ 82–84 of the Tax Control Act are summarised below from the consolidated act on Retsinformation, the official legal database.

Is this guide for you?

Read on if you…

• are Danish tax resident with foreign salary, freelance invoices, crypto or foreign accounts;
• found an error on an earlier Danish return and want to know what correcting it costs;
• run a company from Denmark, or left Denmark and are unsure your exit was clean.

Probably not your case if you…

• only have Danish salary and bank interest, all reported automatically, and you check your annual statement;
• are a non-resident with no Danish income, property or company.

What counts as tax fraud in Denmark?

Danish law separates three levels of fault. The level decides everything that follows.

1. Good-faith errors. The tax is corrected, with interest. No penalty.
2. Gross negligence (grov uagtsomhed). You should clearly have known the information was wrong, for example ignoring obvious foreign income. The sanction is a fine.
3. Intent (forsæt). You knowingly gave wrong information to cut your tax. This is skattesvig, and prison is possible.

§ 82 of the Tax Control Act (skattekontrolloven) defines the offence. You give the tax administration incorrect, misleading or incomplete information, with intent to evade tax, and that information is used for your assessment.

Good news: you only answer for information you must give yourself, could correct on your information form (oplysningsskema), or influenced before it was reported. A bank's or employer's reporting error is not your crime.

Silence is an offence too

Here's the catch most newcomers miss. Danish returns are pre-filled. § 83 therefore adds a duty to act.

• If you get an annual statement (årsopgørelse) that is too low, you must tell Skattestyrelsen within 4 weeks after the reporting deadline.
• If you receive a discretionary assessment that is too low, you have 4 weeks from receipt.
• If you receive neither a statement nor an information form, you must file yourself before the deadline.

Breaking these duties with intent is punished like § 82 fraud. Gross negligence costs a fine.

The fine-only offences in § 84

§ 84 lists separate offences, punished by fine whether intentional or grossly negligent:

• not reporting foreign pension schemes, or gifts to people not fully taxable in Denmark;
• refusing information the agency requests, such as accounts or ownership registers;
• not keeping records for the required period;
• filing transfer-pricing documentation or country-by-country reports late;
• issuing an invoice with false content that could affect taxable income.

Avoidance is not fraud

Using the law as intended to pay less tax is legal. An arrangement can still be set aside under anti-abuse rules, which leads to reassessment and interest. It becomes a criminal matter only if you also gave wrong or incomplete information.

What are the penalties for tax fraud in Denmark?

Fines

The statute sets no amount. Courts fix fines from settled practice. For intentional evasion, the standard fine is 1x the evaded amount up to DKK 60,000 and 2x the rest. In SKM2026.518.ØLR, the district court fined DKK 240,000 on that basis. The Eastern High Court halved it to DKK 120,000 because the case had dragged on for years.

Gross-negligence fines are lower, and mitigating factors such as delay or self-correction reduce them further.

Prison

• Tax Control Act: intentional fraud carries up to 1 year and 6 months. In practice, prison is used for large amounts or repeated conduct.
• Criminal Code: § 289 of the straffeloven covers particularly serious violations of tax, customs, excise or subsidy law, committed for unjustified gain. The maximum is 8 years.

Under § 289(3), the court weighs the method, whether several people acted together, and the number of offences when it sets the supplementary fine.

Other consequences

The evaded tax is reassessed with interest. Advisers and bookkeepers who help can be charged as accomplices. A criminal record can also affect residence permits and citizenship applications.

How far back can Denmark go?

Two clocks run side by side.

Reassessment of your tax

Under § 26 of the Tax Administration Act (skatteforvaltningsloven), Skattestyrelsen must give notice by 1 May and decide by 1 August of the fourth year after the income year. For income year 2022, notice was due by 1 May 2026.

If you acted intentionally or with gross negligence, § 27(1) no. 5 lifts those deadlines. The agency must then give notice within 6 months of learning the facts, and decide within 3 months of the notice. The section sets no outer limit in years.

Criminal prosecution

§ 93 of the Criminal Code sets the limitation by maximum penalty: 5 years where the maximum is up to 4 years, and 10 years where it is up to 10 years. Tax offences that bring or could bring an unjustified gain carry at least 5 years. So ordinary skattesvig runs on a 5-year clock, § 289 fraud on a 10-year clock.

How are tax fraud cases investigated?

1. Data matching. Skattestyrelsen compares your return with reports from employers, banks and platforms, plus foreign data received under CRS and the EU DAC directives.
2. Control case. The agency sends a proposal (agterskrivelse) before deciding. You can comment and see the file.
3. Penalty assessment. If it suspects gross negligence or intent, the agency can propose an administrative fine. Accept it, and the criminal case closes.
4. Police and prosecution. Refuse the fine, or face a serious case, and it goes to the police and prosecution service.
5. Courts and appeals. Criminal cases go to the district court (byret), with appeal to the High Court (landsret). The tax reassessment is appealed separately to the Tax Appeals Agency (Skatteankestyrelsen).

What should location-independent professionals watch?

Most cases involving mobile professionals start with residence, not hidden cash.

• Residence and departure. You stay fully taxable if you keep a home available in Denmark. Misreporting your departure is a classic trigger. See the practical guide to ceasing your tax residency in Denmark and the rules on tax residency in Denmark.
• Foreign income and accounts. Foreign salary, invoices, crypto gains and pensions must be declared. The § 83 duty covers all of them. Crypto reporting is explained in cryptocurrency taxes in Denmark.
• Foreign companies. A company run from Denmark can become Danish tax resident. Presenting it as foreign while managing it from Copenhagen is a reassessment risk, and a fraud risk if facts are misstated. See corporate income taxes in Denmark.
• Special regimes. The researcher and key employee scheme has a salary floor and a 10-year rule. Claiming it without qualifying creates back-tax exposure. See tax incentives for expats in Denmark.

Found an error? Correct it before the agency contacts you. You must flag a too-low assessment anyway, and self-correction weighs strongly against a penalty.

Common mistakes (and what they cost)

• Ignoring a too-low pre-filled statement → an offence under § 83; a fine for gross negligence, and the 4-year reassessment limit no longer protects you.
• Leaving Denmark on paper while keeping a home → full tax liability continues, and years of foreign income are reassessed with interest.
• Managing a "foreign" company from your Danish flat → Danish corporate tax on its profits, plus penalties if facts were misstated.
• Not declaring crypto or platform income → the data arrives anyway through DAC exchanges; with intent, the fine can exceed the tax itself.
• Waiting for a control letter before correcting → you lose the mitigation that voluntary correction gives.

Frequently asked questions

What is the penalty for tax fraud in Denmark?

Intentional fraud under § 82 of the Tax Control Act is punished by a fine or up to 1 year and 6 months in prison. Gross negligence is punished by a fine only. Particularly serious cases fall under § 289 of the Criminal Code, with up to 8 years. Court practice sets the standard intent fine at 1x the evaded amount up to DKK 60,000 and 2x the rest, plus back tax and interest.

How many years back can the Danish tax agency go?

Ordinarily, notice by 1 May and a decision by 1 August of the fourth year after the income year. With intent or gross negligence, § 27 of the Tax Administration Act lets the agency reopen older years if it gives notice within 6 months of learning the facts. Criminal prosecution is time-barred after 5 years for ordinary fraud and 10 years under § 289.

Is it a crime not to correct my pre-filled tax return?

It can be. Under § 83 of the Tax Control Act, you must tell Skattestyrelsen within 4 weeks after the reporting deadline if your annual statement is too low. Staying silent with intent is punished like tax fraud, with a fine or prison. Staying silent through gross negligence costs a fine. Honest oversights lead to correction and interest only.

Is tax avoidance illegal in Denmark?

No. Planning that uses the rules as intended is legal. Anti-abuse rules can still set aside arrangements whose main purpose is a tax advantage against the law's purpose. That leads to reassessment and interest. Criminal penalties apply only if you also gave incorrect, misleading or incomplete information to the tax authority.

Who prosecutes tax fraud in Denmark?

Skattestyrelsen detects cases and assesses the tax. It can also propose an administrative fine. If you refuse it, or the case is serious, the file goes to the police and prosecution service. Criminal cases are tried in the district court and can be appealed to the High Court. The tax itself is appealed separately.

Can I correct an old Danish tax return myself?

Yes. Within the ordinary window, you can change your return in TastSelv (the online tax portal) or ask Skattestyrelsen to reopen the year by 1 May of the fourth year. Correcting first does not legally erase liability, but it weighs heavily in your favour and usually ends with tax and interest.

Related guides

• Tax residency in Denmark: the home and six-month tests
• How to cease your Danish tax residency cleanly
• Cryptocurrency taxes in Denmark
• Denmark tax landscape overview
• Tax fraud rules in Malta, for comparison
• Tax fraud regulations of Austria
• All country tax guides

Sources

• Skattekontrolloven, consolidated act, §§ 82–86 – Retsinformation
• Straffeloven, consolidated act, §§ 93 and 289 – Retsinformation
• Skatteforvaltningsloven, consolidated act, §§ 26–27 – Retsinformation
• SKM2026.518.ØLR – fine calculation – Skattestyrelsen, Den juridiske vejledning
• Marginalskatteprocenter siden 1993 – Skatteministeriet
• DAC8 – European Commission
• Bookkeeping Act guidance – Erhvervsstyrelsen

This guide is general information, not personalised tax advice. See how we research and review.