Crypto CGT calculator
Quick answer: Estimate Capital Gains Tax on a crypto disposal using 2026/27 UK rates and the £3,000 allowance. Free from Digital Assets UK, with figures checked against gov.uk. Estimates only — not tax advice.
Crypto CGT estimate · 2026/27
A simple individual estimate using 18% and 24%. Calculate matched costs first. This does not reconstruct your portfolio or calculate Income Tax.
Use the sterling value of the sale or swap.
Apply same-day, 30-day and Section 104 rules first.
Do not deduct costs already included in another figure.
Use taxable income, not salary before allowances.
Shared with your other gains; enter the remaining amount.
Use losses in the correct statutory order; do not use the same losses twice.
- Gain or loss
- £4,950
- Taxable gain
- £1,950
- Estimated CGT
- £351
Uses your stated taxable income and remaining allowance. Pension contributions, reliefs, other gains and loss-ordering rules may change the result. Negative gains are displayed as losses; this tool does not certify a claim. Figures stay in your browser.
Check HMRC’s CGT rates