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Find and use tools and calculators that will help you work out your tax.
Use these rates and allowances for Capital Gains Tax to work out your overall gains above your tax-free allowance, known as the annual exempt amount.
Find out if you need to declare income from selling personal possessions, goods or services online, creating online content or renting out property using digital platforms.
Use this calculator to work out the adjustment for your Self Assessment tax return for disposals of assets on or after 30 October 2024 where the rates changed.
Use this form to report Capital Gains Tax on UK property or land, if you cannot use our online service.
When and how to report disposals of UK property or land to HMRC and pay Capital Gains Tax if you're not a resident in the UK.
Find out about the foreign income and gains (FIG) regime which replaced the remittance basis on 6 April 2025.
Use the online tool throughout a check to guide you through each stage and to access the support available.
How to work out your taxable capital gain or loss if you are not resident in the UK and are making direct or indirect disposals of UK property or land.
Find out how to ask for authorisation, manage your client's account and how to send returns as an agent.
Find information on completing the Capital Gains section of your Self Assessment tax return.
How to make a negligible value claim for unquoted shares, and how to check if shares previously quoted on the London Stock Exchange now have negligible value.
Use this guidance to help you decide if Capital Gains Tax is due and how much you need to pay.
How to complete the Capital Gains Tax summary of your tax return for share and security schemes.
Register your client’s estate online if you’re a tax agent or adviser.
Use the online service to register a deceased person's estate if you’re an executor, administrator or personal representative.
Check a list of gilt-edged stocks and bonds charged on the National Loans Fund.
Calculate the cost of your shares in a company that's been taken over or has reorganised shares.
Make a voluntary disclosure of any unpaid tax if you have income or gains from cryptoassets, including exchange tokens, NFTs and utility tokens.
Use this helpsheet to find out if you’re entitled to Investors’ Relief.
Don’t include personal or financial information like your National Insurance number or credit card details.
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