Published: July 2026 | Fact-Checked & Audited By: David Vance, CTA FCA (Chartered Tax Advisor & Accountant)
This guide is fully updated for the 2026/27 HMRC tax year and complies with the latest HMRC legislation.
The UK Capital Gains Tax landscape underwent major changes following the Autumn Budget, introducing a unified tax rate schedule that directly impacts investors, directors, and property owners. Prior to these changes, assets like shares and cryptocurrencies were taxed at lower rates (10% and 20%) compared to residential property (18% and 24%). For the 2026/27 tax year, these rates are now fully aligned, meaning all capital gains are taxed at identical rates regardless of the asset class. Calculate your exact liabilities using our Capital Gains Tax Calculator.
UK Capital Gains Tax Rates for 2026/27
Capital Gains Tax is calculated based on your total taxable income and the size of your capital gains. For the 2026/27 tax year, the annual tax-free allowance is frozen at £3,000. Any gains above this allowance are taxed according to your income tax band:
| Asset Type | Basic Rate Taxpayer (Gains within £50,270) | Higher/Additional Rate Taxpayer (Gains above £50,270) |
|---|---|---|
| Shares, Crypto, & Business Assets | 18% (was 10%) | 24% (was 20%) |
| Residential Property (Buy-to-Let) | 18% | 24%. Property transactions can be estimated using our Property CGT Calculator. |
How to Calculate Your CGT Liability
To calculate how much CGT you owe on a disposal of shares or property:
- Deduct the Cost Basis: Subtract the purchase price, transaction fees, and improvements from your sale price to find the gross gain.
- Apply the £3,000 CGT Allowance: Deduct the £3,000 tax-free allowance from your gross gain to find your taxable gain.
- Determine Remaining Basic Rate Band: Calculate your unused basic rate band. Subtract your total taxable income (salary, dividends, interest) from the basic rate threshold of £50,270.
- Apply Tax Rates: Apply the 18% lower rate to the portion of the gain that falls within your remaining basic rate band. Apply the 24% higher rate to any portion of the gain that exceeds £50,270.