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If you're an employee working at sea outside of the UK check if you can claim tax relief on your earnings.
Use the Self Assessment helpsheet (HS263) to work out tax credit relief on income that you've paid foreign tax on.
Learn more about paying tax and keeping records as a property landlord.
How to update your details online if the estimate of your income for the year is going to be more or less than expected.
Ask HMRC to confirm you only pay UK National Insurance contributions whilst working in a country with a social security agreement, known as a reciprocal agreement.
Find out the rules for transferring unused tax-free residence allowance to a surviving spouse or civil partner.
Check if an estate can get the residence nil rate band (RNRB) when someone downsizes, gifts or sells their home before they die.
Use the online service to register a deceased person's estate if you’re an executor, administrator or personal representative.
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.
Register your client’s estate online if you’re a tax agent or adviser.
Find out how gifts are treated for Capital Gains Tax.
How new long-term UK residence rules affect Inheritance Tax from 6 April 2025.
Use form R38 to claim an Income Tax refund by post or nominate someone else to receive the refund on your behalf.
How to apply for the healthcare entitlement certificate (S1) for your dependents or for you and your dependents if you are taking maternity, paternity or adoption leave in the listed countries.
Use this form to work out Income Tax, interest, penalties and Class 4 National Insurance contributions for tax years ending 5 April 2010 to 5 April 2024.
Find information on completing the UK property and other property sections of your Self Assessment tax return.
Find out about Capital gains if you sell or dispose of a shareholding.
If you're an ISA manager, check how to manage additional permitted subscriptions for a surviving spouse or civil partner of a deceased investor.
Find help about filling in the Capital Gains Tax summary pages of your tax return when someone dies.
How to claim UK tax relief on your UK income under double taxation agreements if you’re a non-resident.
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