Guidance

About compliance checks: CC/FS1a

This factsheet provides information about compliance checks.

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Factsheets are for guidance only and reflect the HMRC position at the time of writing.

Updates to this page

Published 31 August 2012
Last updated 30 April 2025 show all updates
  1. Updated ‘About compliance checks � CC/FS1A� to include a section on ‘More information online about compliance checks�.

  2. 'Digital Services Tax' has been added to the list of compliance checks.

  3. »Ê¹ÚÌåÓýapp CC/FS1a privacy notice information has been updated.

  4. »Ê¹ÚÌåÓýapp ‘Compliance checks this factsheet relates toâ€� section has been updated.

  5. »Ê¹ÚÌåÓýapp‘Compliance checks that this factsheet relates toâ€� section has been updated.

  6. This factsheet has been updated throughout and highlights HMRC support available for customers needing help.

  7. »Ê¹ÚÌåÓýapp factsheet has been updated to explain HMRC's use of open source research.

  8. »Ê¹ÚÌåÓýapp factsheet has an updated 'More information' section that explains what information HMRC may use when dealing with compliance checks.

  9. This factsheet has been updated to include new legislation about when a penalty is restricted because of the timing of the disclosure.

  10. New helpsheet published.

  11. Updated version of Compliance Factsheet 1a

  12. First published.

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