Dutch Box 3 calculator
Compare deemed and actual returns for 2025–2026, or explore proposed changes for 2027–2028 with the same portfolio.
- 01
Year & household
Choose the tax year, your fiscal partnership and any transitional partial foreign status.
- 02
Assets & debts
Enter savings, investments, crypto, a Dutch second home and Box 3 debts in EUR.
- 03
Income & changes
Add cash income, annual value changes, purchases and sales to compare the calculation methods.
- 04
Review
Check your inputs, see the calculation details and follow links to the official rule sources.
Your Box 3 estimate
Your estimate, calculation details and rule sources will appear here. Amounts are calculated in this browser.
Describe your year, household, assets and income. You review the extracted fields before they enter your calculation.
A reduction is not a promised refund. The amount you may receive depends on your assessment, tax already paid and the applicable procedure.
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Compare deemed and actual returns, or explore future tax proposals with the same portfolio.
How it works →2027–2028 →Rules checked on 8 October 2026