UK crypto Capital Gains Tax calculator 2026/27
Estimate Capital Gains Tax on a crypto disposal after matched acquisition cost, fees, losses and the annual exempt amount.
How the Crypto gains estimate works
The crypto tool estimates a broad capital gain from disposal proceeds, allowable acquisition cost and fees, then applies losses, the annual exempt amount and current CGT rates. It does not perform the statutory share-pooling and matching record calculation.
Rules checked
Read the checking method
What the result includes
- Entered disposal proceeds and allowable costs
- Current-year losses and annual exemption
- 18% and 24% CGT rates beside other taxable income
What to have ready
- Complete exchange and wallet transaction history
- GBP market value at every disposal or exchange
- Fees, pooled costs and losses from all relevant assets
Questions about Crypto gains
Can swapping one token for another be a disposal?
Yes. A crypto-to-crypto exchange can be a disposal for CGT even when no sterling is withdrawn.
Why is one acquisition-cost box only approximate?
UK matching rules can use same-day, 30-day and pooled costs across transactions. A full transaction ledger is needed to calculate those costs correctly.
About this estimate
You must work out the correct matched cost under same-day, 30-day and pooled holding rules. Income from staking, mining, employment, lending and DeFi is outside this disposal estimate.