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Complete a tax check to renew a taxi driver, private hire or scrap metal licence, or apply for the same type of licence with a different licensing authority.
Find and use tools and calculators that will help you work out your tax.
If you're a sole trader or landlord, use the online service to sign up for Making Tax Digital for Income Tax.
Claim Income Tax relief on your job expenses by post using form P87.
How to work out your adjusted net income and the circumstances when it can affect your tax liability.
Use the online service to update details of your trust, declare no changes, authorise an agent, get proof of registration or close a trust on the trust register.
Use this tool to find out what the numbers and letters in your tax code mean and how much tax you will pay.
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.
Use this list to check if you can claim a fixed amount of tax relief (also known as 'flat rate expenses') for your work expenses if you're an employee.
How to claim a refund in the current tax year on an overpayment of tax when you've flexibly accessed part of your pension pot.
How to set up a new Council Tax account on a property you have recently moved into.
Check if you get an exemption from Making Tax Digital for Income Tax and how it applies.
Register your trust online if you’re a trustee.
Find out what software you will need to report self-employment and property income to HMRC.
Find out how to get a certificate of residence as an individual, company or organisation so you do not get taxed twice on foreign income.
Find recognised commercial software suppliers and software you can use to file your Company Tax Return and any supplementary pages online.
Find out how to file your accounts and Company Tax Return if you previously used the HMRC online service that closed on 31 March 2026.
Tell HMRC if you've left or intend to leave the UK and find out how to get relief or a repayment on UK Income Tax (P85).
Get help with Self Assessment by using online tools and guidance, and watching HMRC YouTube videos.
Making Tax Digital for Income Tax explained, an overview of your first year and a checklist before you use this guide.
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