Capital Gains Tax calculator
Enter a gain, eligible losses and your taxable income to estimate Capital Gains Tax for 2026/27.
Before you start: Enter income after Income Tax allowances. The calculator assumes your £3,000 annual exemption is unused and that the losses you enter can be used against this gain. It leaves out carried interest, trusts, foreign reliefs, chattels, residence relief and multiple disposals. Only choose Business Asset Disposal Relief if you qualify and have enough lifetime limit left.
Enter your figures
Your calculation
| Taxable gain | £47,000.00 |
|---|---|
| Estimated CGT | £10,818.00 |
| Gain after losses and tax | £39,182.00 |
Check your result
Results update as you type. Check the figures against your records and read the limits above. The calculator cannot tell you whether you qualify for a tax relief or complete a tax return for you.
Official guidance
Read the rules for this calculation. Source checked 23 October 2026. Amounts are in pounds. Rates are for 2026/27 unless the page gives a different date.
Useful tools and help
See the property and capital-tax calculators.