The Netherlands does not tax crypto trading gains directly. Instead, crypto is taxed as part of your wealth under Box 3.
The Dutch Box System
| Box | What’s Taxed | Rate (2026) |
|---|---|---|
| Box 1 | Income from work and home | Progressive (up to 49.5%) |
| Box 2 | Substantial interest (5%+ in a company) | 26.9% |
| Box 3 | Savings and investments (including crypto) | 36% on deemed return |
How Box 3 Works
Box 3 doesn’t tax actual gains. It taxes a deemed return on your total assets.
Step 1: Calculate Net Worth
| Item | Amount |
|---|---|
| Crypto holdings (market value on 1 Jan) | €50,000 |
| Bank savings | €20,000 |
| Other investments | €30,000 |
| Total assets | €100,000 |
| Minus: Debts (over threshold) | -€10,000 |
| Minus: Tax-free allowance | -€57,000 (2026 est.) |
| Taxable base | €33,000 |
Step 2: Apply Deemed Return Percentages
| Asset Category | Deemed Return (2026) |
|---|---|
| Bank savings | ~1.0% |
| Investments (crypto, stocks) | ~6.0% |
| Debts | ~2.5% |
Example calculation:
- Savings: €10,000 × 1% = €100
- Crypto: €50,000 × 6% = €3,000
- Debts: €10,000 × 2.5% = €250
- Total deemed return: €3,000 - €250 = €2,750
- Box 3 tax: €2,750 × 36% = €990
What This Means
| Scenario | Tax Impact |
|---|---|
| Crypto goes up 100% | Same tax as going up 10% (tax on deemed return, not gains) |
| Crypto goes down 50% | Still pay tax on deemed return |
| No trading all year | Same tax as active trading |
| Holding on exchange | Same tax as in cold wallet |
The deemed return system is controversial because it taxes unrealised gains and doesn’t account for losses.
Staking and DeFi
Staking rewards are treated as new assets and added to your Box 3 wealth at their market value when received.
| Activity | Box 3 Treatment |
|---|---|
| Staking rewards | Added to wealth at market value |
| Airdrops | Added to wealth at market value |
| DeFi interest | Added to wealth at market value |
| Mining rewards | Box 1 (self-employment income) |
Mining
Mining is considered business income and taxed in Box 1:
- Progressive income tax rates
- Deductible expenses: electricity, hardware, rent
- VAT may apply
Reporting
| What to Report | Where |
|---|---|
| Crypto holdings (amount + value) | Box 3 in tax return |
| Value on 1 January | Use reputable exchange rate source |
| Cost basis | Not needed for Box 3 |
| Transaction records | Keep for 5 years |
Tools
| Tool | Purpose |
|---|---|
| CryptoKitten | Dutch-specific crypto tax tool |
| Blockpit | Supported by Dutch tax office |
| Koinly | Generate Box 3 reports |
Tax-Free Allowance
The 2026 Box 3 tax-free allowance is approximately €57,000 per person. If your total net worth (including crypto) is below this, you pay no Box 3 tax. For couples filing jointly, it’s approximately €114,000.
Bottom Line
The Netherlands taxes crypto as wealth, not income. For most holders, you pay 36% on a deemed return of roughly 6% of your crypto holdings above the €57K tax-free threshold. The actual return doesn’t matter — you pay the same whether you gain or lose. This makes crypto tax in the Netherlands predictable but can be painful in bear markets.
What matters most for Dutch crypto holders
The defining feature of the Dutch system is that your actual trading results do not drive the tax. What matters is your declared net worth on the reference date and the deemed return the law assigns to it. That carries a few practical consequences. Your gain or loss from buying and selling is irrelevant to Box 3, so active trading does not increase your bill — but neither does holding through a downturn reduce it, because you are taxed on a fictional return rather than a real one. The cleanest way to think about your obligation is to value your crypto at market on 1 January and add that figure to your other Box 3 assets. Keep your cost basis on hand anyway: it is not needed for Box 3, but it makes sense to retain the records in case the rules change.
Getting your Box 3 figures right
Preparing for the Dutch return is mostly a valuation exercise. Start by listing every crypto holding and its market value as of 1 January, using a reputable exchange-rate source for consistency. Add your bank savings and other investments, subtract debts above their threshold, then apply the tax-free allowance of roughly €57,000 per person. Anything left forms your taxable Box 3 base, on which the deemed-return percentages are applied before the 36% Box 3 rate. If you stake, lend, or farm, record the market value of each reward on the day you receive it and fold it into your wealth figure. Keep your transaction records for five years, since the return asks for holdings and values rather than a trade-by-trade history.
Common misconceptions about wealth-based tax
A few misunderstandings recur among Dutch crypto holders. One is that keeping coins on an exchange rather than a cold wallet changes the treatment — it does not; holdings are reported in Box 3 either way. Another is that taking a large loss in a bear market will reduce the bill — it will not, because the deemed-return system ignores losses. A third is that a quiet year with no trading means exemption — trading activity has no bearing on a wealth tax, so you pay based on what you hold. Each of these follows from the same underlying idea: the Netherlands taxes your standing wealth, not your activity.
Common questions
Q: What happens if my crypto is held in a company or through a substantial interest? A: Personal holdings fall in Box 3, while a direct or indirect interest of 5% or more in a company can fall into Box 2, taxed at 26.9% on benefits received. The threshold and classification depend on your exact structure, so it is worth confirming with a professional.
Q: Does DeFi lending count as income? A: In practice the interest and rewards are treated as new assets added to Box 3 wealth at their market value when received, rather than as separately taxed income. Mining, however, is treated as self-employment income in Box 1, with progressive rates and deductible expenses.
Q: Which tools help with the Dutch return? A: Dutch-specific and international tools such as CryptoKitten, Blockpit, and Koinly can generate Box 3 reports. Blockpit in particular is supported by the Dutch tax office, and any of these can spare you from assembling the reference-date valuations by hand.