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Research on the tax compliance of the self employed.
When you may need to make a change to your Self Assessment tax return for SEISS payments, and how to do it.
Complete Self-Assessment form F3 or F3(S) for proposed, new and upgraded CHP Schemes
Customers have just 100 days remaining to file their Self Assessment tax return for the 2022 to 2023 tax year.
The legal framework for Income Tax Self Assessment (SA), how to pay or claim tax, how HM Revenue & Customs checks the returns and about tax returns for partnerships
Use the online forms or call HMRC for help with filing your Self Assessment tax return online, or if you have lost your Government Gateway user ID and password
Employment Tribunal decision.
Find out what the Self Assessment for Agents online service is for, what you can do in the service and how to do it.
Use this form if you're an agent and you're unable to file a Self Assessment tax return online for your client.
Almost 250,000 Self Assessment customers filed their tax return for 2022 to 2023 tax year between 6 and 12 April 2023.
Use supplementary pages SA102MP to record employment income on your SA100 Tax Return if you're a Member of Parliament (MP) or a minister.
Use this technical documentation for individual returns if you're a software developer working with the Self Assessment online service.
Don’t include personal or financial information like your National Insurance number or credit card details.
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