Capital Gains Tax £1,260. Gain after tax £8,740.
After the £3,000 allowance, £7,000 is taxable. It all fits in your remaining basic-rate band, so it's taxed at 18% — an estimated £1,260.00 of Capital Gains Tax.
How your Capital Gains Tax is worked out
| Total gain | £10,000.00 |
| Less annual exempt amount | −£3,000.00 |
| Taxable gain | £7,000.00 |
| Basic rate (18%) on £7,000 | £1,260.00 |
| Capital Gains Tax | −£1,260.00 |
| Gain after tax | £8,740.00 |
The annual exempt amount is £3,000 for 2026/27. Gains are taxed at 18% to the extent they fit in your remaining basic-rate band and 24% above it — the same rates for shares and residential property. Your CGT is paid separately from income tax (property gains within 60 days of completion).
Example gains (your income & asset)
CGT at £35,000 income. Tap to load a gain.
Frequently asked questions
Do I pay tax on cryptocurrency in the UK?
Yes. HMRC treats most crypto held by individuals as a chargeable asset, so selling it for a gain is subject to Capital Gains Tax. The first £3,000 of total gains in 2026/27 is tax-free; above that, gains are taxed at 18% within your remaining basic-rate band and 24% above it.
What counts as a disposal of crypto?
A disposal includes selling crypto for pounds, exchanging one cryptocurrency for another, using crypto to pay for goods or services, and gifting it to someone other than your spouse or civil partner. Each disposal can create a gain or loss, even if you never cash out to a bank account.
How is the gain on crypto worked out?
Your gain is the value when you dispose of the crypto minus its allowable cost. HMRC uses pooling (the section 104 pool) to average the cost of identical tokens, with special same-day and 30-day rules. This calculator gives a single-disposal estimate — enter the proceeds and cost for the tokens you sold.
Is crypto ever taxed as income instead?
Sometimes. Coins from mining, staking rewards, airdrops for a service, or being paid in crypto can be Income Tax (and possibly National Insurance) rather than Capital Gains Tax. When you later sell those coins, CGT then applies to any further gain. This tool covers the CGT side only.
How do I report crypto gains?
Report crypto gains through Self Assessment by 31 January after the tax year, or use HMRC’s real-time Capital Gains Tax service. Keep records of every transaction — dates, values in pounds, and costs — as exchanges do not always do this for you.
Related calculators & guides
Sources — official UK figures
A simplified estimate using 2026/27 Capital Gains Tax rates and the £3,000 annual exempt amount. It assumes UK residence and standard rates; it does not cover Business Asset Disposal Relief (a reduced rate up to a £1m lifetime limit), Investors' Relief, gifts, trusts, non-residents, or the Private Residence Relief that usually makes your main home exempt. Report and pay CGT through Self Assessment, or within 60 days for UK residential property. For an exact figure, speak to an accountant.