File a Self Assessment tax return online

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We recommend:

• Self Assessment Online
  Did you know that you can complete and send back your Tax Return over the Internet? Self Assessment Online offers significant advantages over the traditional paper Self Assessment tax return.

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• Self Assessment
  These pages provide comprehensive information and assistance in all aspects of Self Assessment.
  » view Welsh language version

• Self Assessment: FAQs
  Self Assessment applies to everyone who gets a tax return.
  » view Welsh language version

• Self Assessment: Tax Return Forms, Notes and Helpsheets
  Tax Return forms, notes and helpsheets available to view or download
  » view Welsh language version

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