Capital Gains Tax Allowance 2024/5. Enter the purchase and sale details of your assets along with tax reliefs and our capital gains tax calculator will work out your tax bill including all tax rates and allowances. Capital gains tax applies to profits made above the annual allowance from selling shares.
The simplest way to avoid capital gains tax is to regularly use your capital gains tax allowance (officially known as your annual exempt amount or aea). You do not need to pay tax on shares and funds held in a stocks and shares isa.