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Self Assessment tax returns - deadlines, who must send a tax return, penalties, corrections and returns for someone who has died.

• Overview

  Self Assessment is a system HM Revenue and Customs (HMRC) uses to collect…

• Who must send a tax return

  You must send a tax return if, in the last tax year (6 April to 5 April),…

• Registering for Self Assessment

  You must tell HMRC by 5 October if you need to complete a tax return for…

• Sending a return

  You can send a tax return by either: submitting an online return sending a…

• If you no longer need to send a tax return

  You must tell HMRC as soon as possible if you believe you no longer need…

• Deadlines

  HM Revenue and Customs (HMRC) must receive your tax return and any money…

• Penalties

  You’ll get a penalty if you need to complete a tax return and you: send…

• If you need to change your return

  You can make a change to a tax return after you filed it, for example…

• Claiming a tax refund

  You may be able to get a tax refund (also known as a ‘repayment’ or…

• How to get help

  Find out what support is available to help you fill in your tax return and…

• Returns for someone who has died

  If you’re the ‘personal representative’ (an executor or administrator) for…

How to tell HMRC if there's a change to your personal details - address, name, income, marital status, gender

• Change of name or address

  You need to tell HM Revenue and Customs (HMRC) if you’ve changed your name…

• Income changes

  You must tell HM Revenue and Customs (HMRC) about changes to your taxable…

• Relationship or family changes

  Tell HM Revenue and Customs (HMRC) if: you get married or form a civil…

• Gender change

  HM Revenue and Customs (HMRC) is usually told automatically when you…

Tell HMRC about changes to your business - a change of name, address, legal structure or business activity

• Change of name or address

  You must tell HM Revenue and Customs (HMRC) if you change your name,…

• Change to your business

  You must tell HM Revenue and Customs (HMRC) if certain things about your…

High Income Child Benefit Charge - check if you're affected, how and when to pay this tax charge, opt out, restart Child Benefit payments or tell HMRC about a change in your circumstances.

Apply for a Minister of Religion visa (T2) if you've been offered a job in a faith community - eligibility, extend or switch, knowledge of English, bring your family

Apply for a Temporary Work – Government Authorised Exchange (GAE) visa for work experience, training, research or fellowship - eligibility, extend or switch, family members

Apply for a Scale-up Worker visa if you’ve been offered a skilled job with a fast-growing UK employer - eligibility, fees, documents, extend, switch or update, bring your partner and children.

Apply for a Senior or Specialist Worker visa to work for your employer’s UK branch - eligibility, fees, documents, extend, switch or update, bring your partner and children.

Apply for an International Sportsperson visa if you're an elite sportsperson or coach with sponsorship - getting sponsored, eligibility, documents, extend your visa, family members

National Insurance - your National Insurance number, how much you pay, National Insurance rates and classes, check your contributions record.