Capital Gains Tax Calculator
Calculate how much CGT you'll pay on the sale of property, shares, or other assets for the 2025/26 tax year.
Capital Gains Tax Rates 2025/26
CGT rates depend on the type of asset and your income tax band:
| Asset Type | Basic Rate | Higher/Additional Rate |
|---|---|---|
| Residential property | 18% | 24% |
| Shares & other assets | 10% | 20% |
Annual Exemption
Everyone gets a £3,000 annual exemption for 2025/26 (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 2025/26, 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 2025/26) from your gain, then applies 10%/20% for most assets or 18%/24% for residential property, 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. Or use our main salary calculator for a complete take-home pay breakdown.