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Find information on completing the Capital Gains section of your Self Assessment tax return.
If Income Tax has been deducted from your savings and investments, get a refund using form R40.
Find out the rules for transferring the basic tax-free allowance (nil rate band) to a surviving spouse or civil partner.
Use the Self Assessment helpsheet (HS325) to work out your other taxable income and include this in your tax return.
Use this form to report Capital Gains Tax on UK property or land, if you cannot use our online service.
Use form CA9176 to apply for Class 3 National Insurance credits from 6 April 2011, if you've provided care for a child aged under 12.
Use the online service or postal form CF411 to apply for National Insurance Home Responsibilities Protection, or to transfer it from a spouse or partner.
Find out about the Statutory Residence Test (SRT) and how it may apply to your circumstances.
Find out about the foreign income and gains (FIG) regime which replaced the remittance basis on 6 April 2025.
Find out about paying National Insurance contributions to the UK and getting benefits when abroad.
Check what you need to do when taking lump sums so you know what's tax free.
Find out about the Rent a Room Scheme if you're a trader, owner occupier or tenant.
Find out how to report trading losses in your Self Assessment tax return.
Tax treaties and related documents between the UK and USA.
Find out how to calculate your taxable profits.
Use Self Assessment software to help populate your Self Assessment tax return.
Find out which gifts count towards the value of the estate, how to value them and work out how much Inheritance Tax may be due.
Check if a home is eligible for extra tax-free residence allowance if it is left to children, grandchildren or other direct descendants.
Rates and allowances for travel including mileage and fuel allowances.
Use this guide to help you complete the pension savings tax charges and taxable lump sums from overseas pension schemes.
Don’t include personal or financial information like your National Insurance number or credit card details.
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