Capital Gains Tax Calculator

Model the impact of selling shares held in a General Investment Account (GIA). Assumes 2024/25 rules.

Total Buy Price (£)

Total Sell Price (£)

Income Tax Bracket

Estimated Tax Owed

Net Profit after Tax

JS Required. Note: The CGT allowance for 2024/25 is £3,000.

Note: This calculator is for educational purposes. It does not account for complex scenarios like the "bed and breakfast" rule, prior year losses, or residential property rates. Always use a tax wrapper (ISA/SIPP) when possible.