Cryptocurrency taxation in Denmark follows specific rules set by SKAT, the Danish Tax Agency, and they differ in important ways from the rules in many other countries. Understanding exactly when a tax event occurs, which rates apply, and how gains are calculated can make the difference between a clean tax return and one that attracts penalties or back taxes. Denmark’s approach is relatively structured compared with some jurisdictions, but it has its own quirks — particularly the treatment of staking, DeFi activities, and losses — that catch people out.
This guide is designed to give Danish investors a clear picture of how the rules work in practice. It is educational rather than advice, and crypto tax is a fast-moving area, so the figures here are the published rates as of the time of writing and should be checked against current guidance before you rely on them. If your situation involves large amounts, complex DeFi positions, or multiple exchanges, it is worth consulting a Danish tax adviser who specialises in cryptocurrency.
Tax Rates on Cryptocurrency
Cryptocurrency gains are taxed at the same rates as share income:
| Amount | Tax Rate |
|---|---|
| First DKK 79,400 (2026) | 27% |
| Above DKK 79,400 | 42% |
Losses on cryptocurrency can offset gains from other crypto or share income. If your net share income is negative for the year, the loss can be carried forward to offset future gains.
When Is Cryptocurrency Taxed?
Cryptocurrency is taxed on disposal — when you:
- Sell crypto for fiat currency (DKK, EUR, USD)
- Trade one cryptocurrency for another (e.g., Bitcoin for Ethereum)
- Spend cryptocurrency to purchase goods or services
Holding cryptocurrency is not taxable. You only pay tax when you dispose of your holdings.
Average Cost Method
Denmark uses the average cost method for cryptocurrency, the same as for shares. This means:
- Calculate the average purchase price across all holdings of the same cryptocurrency
- When you sell, the gain or loss is the difference between the selling price and this average cost
Example Calculation
| Purchase | Amount | Price per Coin | Total Cost |
|---|---|---|---|
| January 2025 | 0.5 BTC | DKK 200,000 | DKK 100,000 |
| June 2025 | 0.3 BTC | DKK 250,000 | DKK 75,000 |
| Total | 0.8 BTC | DKK 175,000 |
Average cost per BTC: DKK 175,000 ÷ 0.8 = DKK 218,750
If you sell 0.5 BTC at DKK 350,000 per coin:
Sale proceeds: 0.5 × DKK 350,000 = DKK 175,000 Gain: DKK 175,000 - (0.5 × DKK 218,750) = DKK 175,000 - DKK 109,375 = DKK 65,625
Reporting Requirements
Box Reporting
| Box | Purpose |
|---|---|
| Box 66 | Gains and losses on cryptocurrency (if exchange reports to SKAT) |
| Box 67 | Other share income including cryptocurrency |
| Box 496 | Foreign tax credit for withholding tax |
Exchange Reporting
Some cryptocurrency exchanges report user data to SKAT for Danish residents. However, you are always responsible for ensuring your tax return is accurate, even if your exchange reports automatically.
Foreign Exchange Reporting
If you hold cryptocurrency on foreign exchanges, you must report your holdings. SKAT may receive information through international exchange agreements, but you should keep your own records.
Staking and Mining
Income from staking or mining cryptocurrency is taxed as income from shares at 27%/42% when received. The value is measured in Danish kroner at the time you receive the staking reward or mined coin.
Example: If you receive 0.1 ETH from staking when ETH is worth DKK 25,000, you have DKK 2,500 of taxable income.
DeFi Activities
Decentralized finance (DeFi) activities are generally taxed as follows:
- Yield farming rewards: Taxed as income when received
- Liquidity pool rewards: Taxed as income when received
- Lending interest: Taxed as income when received
- Governance tokens: Taxed when disposed of (sold or traded)
The value is measured at the time of receipt, using the market price of the received tokens. Because DeFi is a relatively new and evolving area, the way SKAT treats specific protocols can change, so it is worth keeping abreast of current guidance if you are active in this space.
NFTs
Non-fungible tokens (NFTs) are taxed based on your activity:
- Trading NFTs for profit: Gains are taxed as share income at 27%/42%
- Creating and selling NFTs as a business: May be taxed as business income
- Personal hobby: May be exempt in rare cases, but this is difficult to prove
Losses
Cryptocurrency losses can:
- Offset gains from other cryptocurrency disposals in the same year
- Offset gains from shares and other securities
- Be carried forward to offset future gains if your total share income is negative
Important: You cannot deduct cryptocurrency losses against other types of income (salary, rental income, etc.).
Common Mistakes
- Not reporting cryptocurrency activity — SKAT can impose penalties and back taxes.
- Incorrect cost basis — Using the wrong method or forgetting to include all purchases.
- Forgetting to report staking rewards — Each reward is a taxable event.
- Not keeping records — Inadequate documentation makes accurate reporting impossible.
- Ignoring small transactions — All disposals must be reported, regardless of amount.
Tips for Danish Crypto Investors
Use Crypto Tax Software
Tools like CoinTracking, Koinly, or Blockpit can automatically calculate your gains, losses, and average cost basis. These tools integrate with most exchanges and simplify reporting.
Keep Detailed Records
Maintain records of:
- Date and time of each transaction
- Amount of cryptocurrency bought/sold
- Price in DKK at the time of transaction
- Transaction fees
- Wallet addresses for transfers
Report Promptly
File your tax return by the deadline (typically May 1 for online filing). Late filing can result in penalties and interest charges.
Consult a Tax Advisor
If you have complex DeFi activities, multiple exchanges, or large gains, consider consulting a Danish tax advisor familiar with cryptocurrency taxation.
Worked Example
Scenario: You bought 1 BTC at DKK 200,000 and later sold it at DKK 350,000.
| Item | Calculation | Amount |
|---|---|---|
| Purchase price | DKK 200,000 | |
| Sale price | DKK 350,000 | |
| Gain | DKK 350,000 - DKK 200,000 | DKK 150,000 |
| Tax at 27% | DKK 150,000 × 27% | DKK 40,500 |
If this gain pushes your total share income above DKK 79,400, the excess is taxed at 42%.
Putting It Together
The core of Danish crypto tax is straightforward: gains are taxed like share income on disposal, using the average cost method, at 27% up to DKK 79,400 and 42% above that. The complexity comes from the sheer number of ways crypto can generate taxable events — staking rewards, DeFi income, NFTs, and trades between cryptocurrencies all count — which is why keeping meticulous records matters more than anything else. Because the rules can shift and are open to interpretation in newer areas like DeFi, checking current SKAT guidance on cryptocurrency and taking professional advice when in doubt is the sensible route for anyone with meaningful holdings.