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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.
Sign in and send your Self Assessment tax return online.
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…
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
Use this tool to find out what you need to do to get a tax refund (rebate) if you’ve paid too much Income Tax.
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).
Where to find your unique tax reference (UTR) number, what to do if you've lost your UTR number, or how to apply if you do not have a UTR number
When you start repaying your student loan, your monthly repayments, what to do if you have 2 jobs or are self-employed, how to get a refund if you've overpaid.
How you're taxed on dividend payments and how your income affects the amount of tax to pay
High Income Child Benefit Charge - check if you're affected, how and when to pay this tax charge, opt out and restart Child Benefit payments.
Self Assessment tax return forms for the current tax year
Print your SA302 tax calculation and tax year overview if you're applying for a mortgage and need proof of earnings.
Find out how much you need to put aside for your Self Assessment tax bill if you're self-employed by using HM Revenue and Customs' (HMRC's) self-employed tax calculator.
Records and paperwork you must keep if you're self-employed as a sole trader or partner in a business: income, costs, profit, how long to keep records.
Getting help with tax returns, allowances, tax codes, filling in forms and what to do if you owe HMRC
Contact HM Revenue and Customs if you cannot pay your tax bill - get more time to pay or pay in instalments.
Understand your Self Assessment tax bill - tax you owe, balancing payments, payments on account
How to report your income and claim tax reliefs and any repayment due to you using the SA100 tax return.
Claim capital allowances so your business pays less tax when you buy assets - equipment, fixtures, business cars, plant and machinery, annual investment allowance, first year allowances.
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