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Tax treaties and related documents between the UK and Malaysia.
Find information about your tax return if you have more than one business.
Find out how to apply to HMRC for a refund of Class 3 National Insurance contributions.
If you’re a legal representative, find out the information you need to tell HMRC to calculate the lump sum death benefit charge.
September 2026 newsletter to update stakeholders on the latest news for tax-free savings.
Register a new partner who is not an individual for Self Assessment, for example a company or trust, using form SA402.
Find out what records you must keep about trusts for tax purposes, who can access your information, and what to do if your records are lost or destroyed.
Find information on completing the partnership section of your Self Assessment tax return.
Use this technical documentation for individual returns if you're a software developer working with the Self Assessment online service.
Use this tool to work out how to apportion the £2.5 million allowance across property that qualifies for 100% agricultural relief or 100% business relief.
Tax treaties and related documents between the UK and Norway.
Find out what income your community amateur sports club (CASC) needs to pay tax on.
Find out about Capital Gains Tax treatment for Disposal Relief and Deferral Relief for the Enterprise Investment Scheme (EIS).
Find out the software requirements for reporting Lifetime ISA payments, transfers and withdrawals to HMRC.
Find out if income from a trust or settlement, occurring or paid to someone else, is treated as the settlor’s income (Self Assessment helpsheet HS270).
Tax treaties and related documents between the UK and Malta.
Find out if you’ve made a profit on approved mileage allowance payments claimed as a volunteer driver and need to pay tax.
Find out what we will check, the records you need to keep and how we treat breaches in the ISA rules.
How to apply for a reduced rate of withholding tax, and work out the tax due on worldwide earnings.
Tax treaties and related documents between the UK and Taiwan.
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