What is a crypto tax calculator?
A crypto tax calculator is a simple tool for estimating how a taxable crypto sale, swap, spend, or portfolio gain may affect your tax bill. It combines your gains, losses, holding period, income, country, and tax year to produce a quick estimate.
This page is built for fast planning, not final filing. It helps you understand whether a transaction is likely to create taxable gains before you generate a full report.
How to use this free calculator
Select your country and tax year, then choose whether you want to estimate one trade or enter total gains from your full trading history.
- For one trade, enter purchase price, selling price, fees, and holding period.
- For total gains, enter short-term gains, long-term gains, and losses.
- Add taxable income where the estimate depends on your marginal tax band.
- Review the estimate and use CryptoTaxBridge when you need a complete report.
What this estimate includes
The calculator focuses on capital gains-style estimates and simplified Box 3 logic for the Netherlands. It does not replace a full transaction import, accountant review, or official tax filing.
- Exchange and wallet import is not included in this quick estimator.
- Local, state, provincial, deductions, credits, special reliefs, and business activity may change the result.
- CryptoTaxBridge can prepare a fuller tax-ready report after you import your actual transactions.