CryptoTax UK · UK crypto tax calculator
The UK crypto tax calculator built for HMRC's rules
Estimate the Capital Gains Tax HMRC may expect on your crypto disposals. Built around the same matching engine HMRC uses — Section 104 pool, same-day rule, 30-day rule. Educational only.
Open the crypto tax calculator → Learn more about CryptoTax UK- ✓ HMRC-aware engine — Section 104 pool, same-day, and 30-day rules
- ✓ 2025/26 £3,000 annual exempt amount and CGT bands built in
- ✓ Maps disposals straight to SA108 boxes 13.1–13.5
- ✓ CSV import for Coinbase, Binance, Kraken and a generic format
- ✓ Core calculator is free — Premium adds CSV import and an accountant PDF
Educational guidance only. CryptoTax UK is not a regulated tax adviser and the information above does not constitute tax, legal or financial advice. Always confirm your specific position with HMRC or a qualified accountant before filing. The full app is hosted at cryptotaxuk.app.