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Use form SA1 to register for Self Assessment for any reason other than self-employment.
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).
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 service to correct your tax position if you have been affected by the public service pensions remedy (also known as McCloud).
How to set up a new Council Tax account on a property you have recently moved into.
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.
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.
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.
Find out about tax as a landlord, and how to work out your rental income if you rent out property.
Find out what information you need to send HMRC before you make a claim for R&D Corporation Tax relief.
Off-payroll working rules for clients, workers (contractors) and their intermediaries.
Find out how to appeal an individual or partnership Self Assessment penalty. For example, either online or by post using forms SA370 or SA371.
Find out about annual tax-free allowances for property or trading income and if you qualify.
You can reduce your Corporation Tax bill through Marginal Relief from 1 April 2023 if your company’s profits are lower than £250,000.
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 form service or postal form CF411 to apply for National Insurance Home Responsibilities Protection.
A list of goods and services showing which rates of VAT apply and which items are exempt or outside the scope of VAT.
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.
Find out how you can get your import VAT certificates (C79).
Check how the government calculates and spends your Income Tax and National Insurance contributions within your Annual Tax Summary.
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