Aldoraun

Free calculator · no account needed

Capital Gains Tax estimator

Estimate Capital Gains Tax after the annual exempt amount, using the basic and higher rates for the selected year.

Illustrative result

£1,728.00 estimated Capital Gains Tax

2026 to 2027

Gain after the annual exempt amount
£9,600.00
Slice at the basic rate
£9,600.00
Slice at the higher rate
£0.00
Capital Gains Tax
£1,728.00

Assumptions

  • The worked example matches the GOV.UK 2026 to 2027 case of a £12,600 gain and £20,000 of taxable income.
  • Private residence relief, losses and residential property are not separate rates here. From 6 April 2026 the published main rates are 18% and 24%.
  • Losses brought forward are not deducted unless you reduce the gain before entering it.

Questions

Do I pay this when I sell my home?

You do not usually pay Capital Gains Tax on your only or main home. This estimator is for a gain that is taxable.

Use this in your own plan

The result stays in your browser. Create an Aldoraun account if you want to keep a budget, accounts and a cashflow forecast.

Related calculators

Estimates only. Tax and repayment rules can change, and this is not financial, tax or pension advice.

Estimated Capital Gains Tax£1,728.00See breakdown