Registering for Self Assessment

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Services

• Check how to register for Self Assessment

  How to register for Self Assessment or reactivate your account, if you need to send a tax return or want to make voluntary Class 2 National Insurance payments.

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Guidance and regulation

• Help online with Self Assessment
  • Detailed guide
  • 16 December 2025
  • HM Revenue & Customs

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News and communications

• 298,905 Self Assessment filers quick off the mark
  • 12 May 2026
  • HM Revenue & Customs
  • Press release
• A record 299,419 returns filed in the first week of the new tax year
  • 7 May 2025
  • HM Revenue & Customs
  • Press release
• Love your side hustle? Make it tax official this Valentine’s
  • 12 February 2025
  • HM Revenue & Customs
  • Press release
• Hanging on the Telephone: 5 reasons Self Assessment customers don’t need to wait on hold
  • 28 November 2023
  • HM Revenue & Customs
  • Press release
• Scams warning for 12 million Self Assessment customers
  • 17 October 2023
  • HM Revenue & Customs
  • Press release

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Organisations

• HM Revenue
  & Customs