Capital Gains Tax Calculator

Capital Gains Tax Rates 2026/27

CGT rates depend on the type of asset and your income tax band:

Annual Exemption

Everyone gets a £3,000 annual exemption for 2026/27 (reduced from £6,000 in 2023/24). Gains below this amount are tax-free.

How CGT is Calculated

Your gain is added on top of your income to determine which tax band it falls into. If your income is below £50,270 (basic rate threshold), some or all of your gain may be taxed at the lower rate. Any gain that pushes you above the threshold is taxed at the higher rate.

Your main home is usually exempt from CGT under Private Residence Relief. Use our salary calculator to check your income tax band.

What This Calculator Does

This calculator works out your Capital Gains Tax liability for 2026/27, taking into account the annual exempt amount and the different CGT rates for basic and higher-rate taxpayers. It is designed for anyone selling assets like property, shares, or cryptocurrency at a profit.

How the Calculation Works

It subtracts the CGT annual exempt amount (£3,000 for 2026/27) from your gain, then applies 18%/24% — the same rates for residential property and for shares, funds and other chargeable assets since 30 October 2024 — depending on your income tax band.

Common Scenarios

Selling buy-to-let property with a £50,000 gain as a higher-rate taxpayer would result in roughly £11,280 CGT. Selling shares worth £10,000 profit as a basic-rate taxpayer would cost around £700 in CGT after the exempt amount.

Related Calculators

You might also find these useful: Crypto Tax, Inheritance Tax, Dividend Tax. For the tax on a specific gain, see capital gains tax by gain amount. Or use our main salary calculator for a complete take-home pay breakdown.