Crypto Tax Calculator

🇬🇧 Free Tool · 2026/27 Tax Year
Crypto Tax Calculator UK: work out CGT on your crypto gains
Sold, swapped, or spent crypto this year? Enter your disposals and income to see your Capital Gains Tax at 2026/27 rates (18% / 24%) with the £3,000 exemption applied — and learn which crypto events HMRC taxes as income instead.
Total gain–
Annual exempt amount used–
Taxed at 18% (basic band)–
Taxed at 24% (higher band)–

Which crypto events are taxable in the UK?

HMRC treats crypto as an asset, not currency — so Capital Gains Tax applies every time you dispose of it. Disposal doesn't just mean cashing out to pounds: swapping one coin for another, spending crypto, and gifting it (except to a spouse) are all taxable events at that day's market value. Simply buying and holding, or moving coins between your own wallets, is not taxable.

Separately, some crypto arrives as income, taxed at 20/40/45% like wages: mining rewards, most staking rewards, airdrops received for doing something, and getting paid in crypto. Those coins then have a cost basis at the value you received them, and CGT applies on top when you later dispose of them.

2026/27 crypto CGT rates and the shrunken exemption

Gains above the £3,000 annual exempt amount are taxed at 18% where they fit inside your unused basic-rate band (income up to £50,270) and 24% beyond it. The exemption was £12,300 as recently as 2022/23 — at £3,000, even modest portfolio rebalancing now creates a tax bill. Remember HMRC's share-pooling rules (Section 104 pool, same-day and 30-day matching) decide your cost basis when you've bought the same coin at different prices — this trips up almost everyone with active trading history.

Also: UK exchanges now report user data to HMRC under the Cryptoasset Reporting Framework, and HMRC has been sending nudge letters to holders. Losses are valuable — report them on your return and they offset gains indefinitely.

Frequently asked questions

Do I pay tax swapping one crypto for another?

Yes — a swap (e.g. BTC → ETH) is a disposal of the first coin at its sterling value that day, and any gain counts towards CGT even though you never touched pounds.

How much crypto gain is tax-free in 2026/27?

£3,000 per person per year (the annual exempt amount, shared across all your capital gains). Spouses each have their own £3,000 and can transfer assets between them tax-free.

Does HMRC know about my crypto?

Increasingly, yes — exchanges serving UK users report account and transaction data under the Cryptoasset Reporting Framework, and HMRC cross-checks it against returns.

Is staking income or capital gains?

Most staking rewards are taxed as miscellaneous income at your income tax rate when received, then CGT applies on any growth when you later dispose of them.

How do I report crypto gains to HMRC?

Through the capital gains pages of a Self Assessment return (or HMRC's real-time CGT service), due 31 January after the tax year. Keep records of every transaction — dates, values, fees.

Crypto taxes, untangled

FincSol Accountancy reconciles your exchange history, applies HMRC's pooling rules correctly, claims your losses, and files your Self Assessment. Dedicated personal accountant. No long-term contract.

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Assumes all gains are capital (not trading/income), 2026/27 rates, and no other gains using your exemption. Share-pooling rules may change your actual cost basis. Guidance only — see gov.uk. Related: capital gains tax calculator · Self Assessment service.