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Tax return forms

You can find some of our most popular tax forms below

  • Form 11  (please see 'Related forms' for prior years) - Tax Return and self-assessment (relating to taxes on income and capital gains for self-assessed individuals).
  • Guide to completing Pay and File self-assessment returns (please see 'Related forms' for prior years).
  • Income Tax Return (Form 12)  (please see 'Related forms' for prior years) - Tax Return for the year (Employees, pensioners and non-proprietary directors).
  • Income Tax Return (Form 12S)  (please see 'Related forms' for prior years) - Tax Return for the year (Employees, pensioners and non-proprietary directors).
  • Form CG1 (state year) - Capital Gains Tax Return.

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Published: 24 September 2025 Print this page

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