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Guidance

Transfer files securely with HMRC: service availability and issues

Check the availability and any issues affecting the Transfer files securely with HMRC service.

Updates to this page

From:
HM Revenue & Customs
Published:
24 January 2018
Last updated:
30 June 2026
Show all updates

  1. The name of the service has changed from the ‘Secure Data Exchange Service’ to ‘Transfer files securely with HMRC’.

  2. Planned downtime from 10am to 5pm on Saturday 14 October 2023 has been added.

  3. A message about changes to the service from Tuesday 25 July 2023 to Friday 28 July 2023 has been added.

  4. Planned downtime for 11:00am to 8:30pm on Sunday 8 March 2020 has been changed to 11:00am to 8:30pm on Sunday 14 March 2020.

  5. Planned downtime for 11am to 8.30pm on Sunday 8 March 2020 has been added.

  6. Planned downtime for midday to 2pm on Sunday 12 May 2019 has been added.

  7. The date and time of the planned downtime has been changed to Thursday 21 March 9am to 5pm.

  8. Planned downtime for Sunday 17 March 2019 has changed to Wednesday 20 March 2019 from 9am to 6pm.

  9. Planned downtime for Sunday 10 March 2019 has changed to Sunday 17 March 2019 from 11:30am to 8pm. Information about this issue has been added.

  10. Planned downtime for Sunday 10 March has changed to Friday 8 March from 10:30am to 6pm on Sunday 10 March.

  11. Planned downtime for Friday 1 March to Sunday 3 March has changed to 6pm on Friday 8 March 2019 to 6pm on Sunday 10 March 2019. A service issue about the automated transfer process changing has also been added.

  12. Planned downtime from 5:30pm on Wednesday 20 February 2019 to 9am on Thursday 21 February has been added.

  13. Planned downtime from 1 March 2019 to 3 March 2019 has been added and a service issue for the managing users option, which will be unavailable from 13 February 2019 due to a technical problem.

  14. Service issue for Thursday 8 November 2018 from 6pm to 11pm has been added.

  15. Service issues message removed.

  16. The service availability section has been updated as the service is currently unavailable.

  17. The service issues section has been updated as HMRC is currently experiencing issues with the delivery of emails from SDES.

  18. Planned maintenance to the Secure Data Exchange Service on Thursday 21 June 2018 from 6pm to 7pm has been added to the page.

  19. Planned maintenance to the SDES service on Friday 9 March between 9am and 11am added to the page.

  20. First published.

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Transfer files securely with HMRC — service availability and issues

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