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How to claim a refund in the current tax year if you are not getting taxable benefits or a pension from your employer and you've not started a new job (P50).
If you've been sent a letter from HMRC, apply for a refund of Class 1 National Insurance contributions using form CA4361.
How to make a subject access request (SAR) to get information that HMRC holds about you.
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.
Ask HMRC to confirm that you, or if you’re an employer, your employee pays only UK National Insurance contributions whilst working temporarily in an EU country, Gibraltar, Iceland, Liechtenstein, Norway or Switzerland.
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 the online service if you're a sole trader or landlord to sign up for Making Tax Digital for Income Tax and find out what to do next.
Find out the rules for transferring the basic tax-free allowance (nil rate band) to a surviving spouse or civil partner.
Check what you need to do when taking lump sums so you know what's tax free.
Check if a home is eligible for extra tax-free residence allowance if it is left to children, grandchildren or other direct descendants.
Use form MATCF to apply for Marriage Allowance to transfer 10% of your Personal Allowance to your husband, wife or civil partner.
Find out about paying National Insurance contributions to the UK and getting benefits when abroad.
How to update your details online if you have started with a new employer and you think your tax code is wrong.
Find software suppliers for tax returns, supplementary pages and attachments.
If Income Tax has been deducted from your savings and investments, get a refund using form R40.
Use this form to report Capital Gains Tax on UK property or land, if you cannot use our online service.
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.
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.
Use this form to work out interest and penalties for tax years ending 5 April 2006 to 5 April 2024.
Register for Self Assessment and Class 2 National Insurance when you've joined a partnership using form SA401.
Don’t include personal or financial information like your National Insurance number or credit card details.
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