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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.
When and how you need to report disposals of UK property or land to HMRC and pay Capital Gains Tax if you're not a resident in the UK.
Use this form to report Capital Gains Tax on UK property or land, if you cannot use our online service.
Find out about the foreign income and gains (FIG) regime which replaced the remittance basis on 6 April 2025.
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.
Use the online tool throughout a check to guide you through each stage and to access the support available.
Use this guidance to help you decide if Capital Gains Tax is due and how much you need to pay.
Find information on completing the Capital Gains section of your Self Assessment tax return.
Register your client’s estate online if you’re a tax agent or adviser.
How to complete the Capital Gains Tax summary of your tax return for share and security schemes.
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 the online service to register a deceased person's estate if you’re an executor, administrator or personal representative.
Calculate the cost of your shares in a company that's been taken over or has reorganised shares.
Check a list of gilt-edged stocks and bonds charged on the National Loans Fund.
Make a voluntary disclosure of any unpaid tax if you have income or gains from cryptoassets, including exchange tokens, NFTs and utility tokens.
Find out about the HMRC Shares and Assets Valuations (SAV) team, how to get a Post Transaction Valuation Check and how to appeal a valuation.
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