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Use these rates and allowances for Capital Gains Tax to work out your overall gains above your tax-free allowance, known as the annual exempt amount.
Use the PAYE tax calculator to work out how much Income Tax an employee needs to pay, in a pay period that is in the current tax year.
Find out what commercial software you will need to report self-employment and property income to HMRC.
Use this calculator to work out employee National Insurance contributions for the current tax year, if you're an employee, employer, or a software developer.
Use this tool to find out what the numbers and letters in your tax code mean and how much tax you will pay.
Use form SA1 to register for Self Assessment for any reason other than self-employment.
Use this form to apply for transfer of residence (ToR) relief when moving or returning to the UK.
Find out about tax as a landlord, and how to work out your rental income if you rent out property.
Use form CA5403 to request a copy of your National Insurance number by post.
How to claim back tax that HMRC owes you on a small pension lump sum that you've received in the current tax year (P53).
Apply for a refund of the higher rates of Stamp Duty Land Tax (SDLT16) for additional properties if you sell what was previously your main home.
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.
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.
Use our online service to apply to pay voluntary National Insurance contributions for periods abroad.
How to check your tax if your pay is not what you expected, and update your details if you think your tax code is wrong.
What you need to do if you've submitted a declaration using the Customs Declaration Service and need to send supporting documents or respond to HMRC queries.
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.
Guidance for sole traders, landlords, and agents to sign up early to use HMRC's new way to report self-employment and property income and expenses for the tax year 2025 to 2026.
Check if you need to use this service to report your self-employment and property income.
If you account for your import VAT on your VAT Return, you’ll have to access the Customs Declaration Service to get a postponed import VAT statement online.
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