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Self Assessment tax returns - deadlines, who must send a tax return, penalties, corrections and returns for someone who has died.
Self Assessment is a system HM Revenue and Customs (HMRC) uses to collect…
You must send a tax return if, in the last tax year (6 April to 5 April),…
You must register for Self Assessment if you have to send a tax return and…
You must tell HMRC if you believe you no longer need to send a tax return.…
HM Revenue and Customs (HMRC) must receive your tax return and any money…
You’ll get a penalty if you need to send a tax return and you miss the…
You can make a change to a tax return after you filed it, for example…
If you need help with Self Assessment, you can: appoint someone to fill in…
If you’re the ‘personal representative’ (an executor or administrator) for…
Sign in and send your Self Assessment tax return online.
How to register for Self Assessment if you need to send a tax return or want to make voluntary Class 2 National Insurance payments.
Payment options for your Self Assessment tax bill - Direct Debit, bank transfer, through your tax code, debit or credit card, cheque and pay weekly or monthly
Includes filing, deadlines, pay and tax records
Use this tool to find out if you need to send a tax return for the 2023 to 2024 tax year (6 April 2023 to 5 April 2024).
How to get online help with Self Assessment from HMRC by using our digital assistant, community forums, YouTube videos and online tools.
Understand your Self Assessment tax bill - tax you owe, balancing payments, payments on account
Guidance, forms and helpsheets for Self Assessment. Including filing returns, paying your bill, refunds, penalties, and help and support.
Self Assessment tax return forms for the current tax year
Sign in or set up a personal or business tax account, Self Assessment, Corporation Tax, PAYE for employers, VAT and other services.
Contact HMRC for advice on Self Assessment and to change your personal details
Learn more about getting started with Self Assessment including registration, tax returns, tax bills and payments.
Helpsheets for your Self Assessment tax return.
Sign into or set up a personal tax account to check and manage HMRC records, including Income Tax, change of address, Self Assessment and company car tax.
Use form SA1 to register for Self Assessment for any reason other than self-employment.
If you’ve missed Self Assessment deadlines get an estimate of how much you’ll need to pay in penalties and interest
How to pay a Self Assessment late filing penalty or late payment penalty by Direct Debit, bank transfer, credit card, cheque or at a bank or building society.
Contact details, webchat and helplines for enquiries with HMRC on tax, Self Assessment, Child Benefit or tax credits (including Welsh language services).
Find out how to appeal an individual or partnership Self Assessment penalty. For example, either online or by post using forms SA370 or SA371.
Don’t include personal or financial information like your National Insurance number or credit card details.
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