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Guidance

Get help with Self Assessment filing if you're a postmaster

If you received Horizon Shortfall Scheme (HSS) compensation between 6 April 2022 and 5 April 2025 you can get support with your Self Assessment tax return.

Updates to this page

From:
HM Revenue & Customs
Published:
8 January 2024
Last updated:
29 January 2026
Show all updates

  1. Guidance for postmasters in the Horizon Shortfall Scheme (HSS) has been updated to include the dates 6 April 2022 to 5 April 2025.

  2. Updated with information on sending a tax return for tax year 6 April 2022 to 5 April 2023, and 6 April 2023 to 5 April 2024 for postmasters in the Horizon Shortfall Scheme.

  3. Information about National Insurance credits has been added to the getting help section.

  4. A new section has been added regarding the use of Horizon data and Self Assessments.

  5. Last update published in error. We will publish another update shortly.

  6. A new section has been added regarding the use of Horizon data and Self Assessments.

  7. A Welsh translation has been added.

  8. First published.

Documents

Horizon Shortfall Scheme claimants and support for affected postmasters

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Details

Postmasters in the Horizon Shortfall Scheme (HSS) who do not receive their top-up payment in good time to file their Self Assessment tax return before the 31 January deadline will not have to pay late filing or late payment penalties or interest. This document offers guidance to affected postmasters about the dedicated support available to them.

Contact our dedicated support team

Telephone:

0300 322 9625

Opening hours:

Monday to Friday 8am to 6pm

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