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Policy paper

Extended loss carry back for businesses

This guidance note is about the rules for the temporary extension of loss carry back for businesses.

Updates to this page

From:
HM Revenue & Customs
Published:
3 March 2021
Last updated:
27 August 2024
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  1. The last date an extended loss carry back claim could be made was 31 March 2024.

  2. Chapter 1 has been updated with information about claiming the one-year carry back.

  3. The requirements for submitting Loss carry-back allocation statements have been updated.

  4. The Information about rules for Extended loss carry back claims has been updated.

  5. This guidance note has been updated at the extend loss carry back section to include how to make a de minimis claim.

  6. HMRC will give an update shortly on the preferred method for making a de minimis claim.

  7. In Chapter 3, the sub-section on Amended company tax returns has been amended to say you do not need to submit an amended company tax return for claims for the accounting periods covered by the extended relief

  8. This page has been updated with information on making claims for companies.

  9. First published.

This publication was withdrawn on

This page has been withdrawn because the last date an extended loss carry back claim could be made was 31 March 2024. Find out how to work out and claim relief from Corporation Tax trading losses.

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Extended loss carry back for businesses

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The purpose of this guidance note is to:

  • explain the new rules that were introduced to make extended loss carry back claims for companies and unincorporated businesses
  • set out the procedure that had to be followed to make those claims

The last date an extended loss carry back claim could be made was 31 March 2024.

Find out more information in the Temporary extension to carry back of trading losses for Corporation Tax and Income Tax tax information and impact note.

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