Generate your Dutch crypto tax return in 10 minutes.
Connect every wallet, exchange and chain. The Belastingdienst taxes crypto under Box 3 at your Jan 1 portfolio value. Kryptos computes that value, applies the current deemed-return rate, and prepares your output for the 2027 actual-return reform.
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MEMBER OF INATBAGATE VENTURESMEMBER OF INATBAEverything for crypto tax in Netherlands
Pick the tool for where you are: work out what you owe, file with the right forms, or hand it to an accountant.
Get started in 3 simple steps
- 1
Sign in / sign up
Create an account and sync your wallets, exchanges and DeFi positions in one place.
- 2
Connect your accounts
5,500+ integrations across CEXs, DEXs, wallets and chains. Kryptos values every holding in EUR at the relevant date.
- 3
Generate your Belastingdienst report
Download your Box 3 valuation, drop into Mijn Belastingdienst, or hand to your belastingadviseur.
Built for Belastingdienst crypto tax filing
The Dutch Box 3 system, applied so your annual aangifte matches what the Belastingdienst expects.
1 January valuation
Box 3 taxes wealth, not gains. We snapshot every wallet at 1 January in EUR using the historical price your Belastingdienst can verify.
Deemed-return method
The current 'forfaitair rendement' percentage applied to your taxable base. The Hoge Raad rulings honoured, with actual returns shown where they're lower.
Heffingsvrij vermogen
Tax-free allowance deducted before the rate hits, with the right partner-doubling applied when you file jointly.
2027 actual return ready
The system moves to taxing actual returns in 2027. Kryptos tracks both the deemed and actual figures from today so the transition is paperwork, not pain.
Every form the Belastingdienst accepts
Important Dutch crypto tax dates (2025 to 2026)
Box 3 valuation snapshot date. Every crypto holding measured in EUR on this date.
Mijn Belastingdienst opens the aangifte for the 2025 tax year.
Filing deadline for the 2025 aangifte. Extensions available via your adviseur.
Free Dutch crypto tax filing checklist
Every document the Belastingdienst expects for Box 3 with crypto holdings, in the order your adviseur will ask for them.
Wir senden das PDF direkt per E-Mail. Kein Spam, jederzeit abbestellbar.
Start your Dutch crypto tax return now
Beat the May 1 Belastingdienst deadline. Generate Box 3 valuation in minutes.