Capital Gains Tax Calculator
Estimate the Capital Gains Tax you may owe
Work out UK CGT on gains from property, shares and investments using your income and gains.
Your salary or other taxable income before tax.
Your gain before Capital Gains Tax.
Try a gain:
Your gain before Capital Gains Tax.
Try a gain:
Your estimated results
For 2026/27, shares/other assets and residential property use the same CGT rates (18% / 24%), with one shared annual exemption and unused basic-rate band.
Estimate based on the gains and income entered. Reliefs such as Private Residence Relief can change the tax due.
Tax Breakdown
Annual exempt amount
Shares and investments
Residential property
CGT rates 2026/27
18% / 24%
Shares / other assets
18% / 24%
Residential property
£3,000
Annual exemption
About the Capital Gains Tax Calculator
Use this UK capital gains tax calculator to estimate CGT on property, shares and investments for the 2026/27 tax year.
Enter your income, gains from shares or investments, and gains from residential property to estimate your total CGT liability.
For 2026/27, gains within your unused basic-rate Income Tax band are taxed at 18%, and gains above that band at 24%. The same rates apply to residential property and to shares and other assets.
This calculator gives an estimate only. Reliefs such as Private Residence Relief or Business Asset Disposal Relief may reduce your liability.
For official guidance on what you pay Capital Gains Tax on, rates and allowances, see GOV.UK Capital Gains Tax.