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How to update your details online if you have started with a new employer and you think your tax code is wrong.
Use form MATCF to apply for Marriage Allowance to transfer 10% of your Personal Allowance to your husband, wife or civil partner.
Find the rates and allowances for Income Tax including the previous 3 tax years.
Check what you need to do when taking lump sums so you know what's tax free.
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.
If you’ve received a serious ill-health pension lump sum or flexibly accessed all of your pension, claim a tax refund with form P53Z .
Find out about the foreign income and gains (FIG) regime which replaced the remittance basis on 6 April 2025.
Use this form to work out interest and penalties for tax years ending 5 April 2006 to 5 April 2024.
See how to work out the tax relief for individual landlords and assess the impact of the finance cost restriction from 6 April 2017.
If Income Tax has been deducted from your savings and investments, get a refund using form R40.
Rates and allowances for travel including mileage and fuel allowances.
How you'll be paid, what you’ll be paid, and how to check your pay when you’re employed by an umbrella company as a temporary worker.
Check if you can apply for an exemption from Making Tax Digital for Income Tax if you think you are digitally excluded.
How to claim a refund in the current tax year if you've stopped working, have flexibly accessed and emptied your pension pot, and have a P45 from your pension provider.
How to claim a refund on tax and personal allowances on UK income if you're not resident in the UK on form R43.
Learn more about paying tax and keeping records as a property landlord.
Use the online tool throughout a check to guide you through each stage and to access the support available.
Learn more about Making Tax Digital for Income Tax if you're an agent, sole trader or landlord.
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.
How to update your details online if the estimate of your income for the year is going to be more or less than expected.
Don’t include personal or financial information like your National Insurance number or credit card details.
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