Capital Gains Tax (UK) Calculator
Result
Capital Gains Tax (UK) Calculator Estimate the UK Capital Gains Tax on a profit from selling shares or property. Enter your total gain, your tax band, and the asset type, and this calculator subtracts the annual exempt amount and applies the right CGT rat — free online calculator.
Formula
- Capital Gains Tax (UK) Calculator calculates its result from Gain, Remaining Allowance, Rate. It uses the formula Taxable gain = gain − remaining allowance; CGT = taxable gain × rate. Change any input to recalculate the result instantly.
- The main inputs are Gain, Remaining Allowance, Rate. Enter them in the units and format shown in the calculator.
- Use monetary amounts, rates and time periods exactly as labeled; the result reflects the assumptions entered on this page.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Capital Gains Tax (UK)
- Gain: 2
- Remaining Allowance: 3
- Rate: 0.05
Using Gain = 2, Remaining Allowance = 3, Rate = 0.05, the calculated result is -0.05.
Sample result: Calculating…
Frequently asked questions
What does the Capital Gains Tax (UK) calculate?
Capital Gains Tax (UK) Calculator Estimate the UK Capital Gains Tax on a profit from selling shares or property. Enter your total gain, your tax band, and the asset type, and this calculator subtracts the annual exempt amount and applies the right CGT rat — free online calculator.
Which values should I enter?
Enter Gain, Remaining Allowance, Rate using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Taxable gain = gain − remaining allowance; CGT = taxable gain × rate.
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.