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Guidance

Self Assessment: service availability and issues

Check the availability and any issues affecting the Self Assessment online service.

Updates to this page

From:
HM Revenue & Customs
Published:
24 August 2015
Last updated:
28 August 2026
Show all updates

  1. Planned downtime from 7am to 5.30pm on Tuesday 1 September 2026 has been added.

  2. Planned downtime from 7am to 9am on Wednesday 20 May 2026 and 7am to 9am on Thursday 21 May 2026 has been added.

  3. Planned downtime from 11:45pm on Sunday 5 April 2026 to 2:30am Monday 6 April 2026 has been added.

  4. Planned downtime from 6pm to 11:59pm on Thursday 18 September 2025 has been added.

  5. Planned downtime from 8am on Saturday 24 May 2025 to 7pm on Sunday 25 May 2025 has been changed. Planned downtime is now from 8am on Saturday 24 May 2025 to 7pm on Monday 26 May 2025.

  6. Planned downtime message from 8am on Saturday 24 May 2025 to 7pm on Sunday 25 May 2025 has been added.

  7. Planned downtime from 11:45pm on Saturday 5 April 2025 to 2:30am Sunday 6 April 2025 has been added.

  8. Planned downtime from from 11:45pm on Friday 5 April 2024 to 2:30am on Saturday 6 April 2024 has been added.

  9. Planned downtime from from 11:45pm on Wednesday 5 April 2023 to 2:30am on Thursday 6 April 2023 has been added.

  10. Planned downtime from 11:45pm on Tuesday 5 April 2022 to 2:30am Wednesday 6 April 2022 has been added.

  11. Planned downtime from 11:59pm on Monday 4 October 2021 to 12:30am Tuesday 5 October 2021 has been added.

  12. Planned downtime from 12pm to 12:30pm on Tuesday 5 October 2021 has been added.

  13. Planned downtime from 11:45pm on Monday 5 April 2021 to 2:30am on Tuesday 6 April 2021 has been added.

  14. Planned downtime from 11:45pm Sunday 5 April 2020 to 2.30am Monday 6 April 2020 has been added

  15. Planned downtime for Monday 25 November to Tuesday 26 November 2019 has been changed. The downtime will now take place from 9pm on Tuesday 26 November to 6am on Wednesday 27 November 2019.

  16. Due to scheduled maintenance you will be unable to set up a direct debit using the HMRC online service from 9pm on Monday 25 November 2019 to 6am on Tuesday 26 April 2019. Information about this issue has been added.

  17. This service is unavailable from 9pm on Thursday 21 November to 6am on Friday 22 November 2019. Information about this issue has been added.

  18. Planned downtime for 9pm on Tuesday 12 November 2019 to 6am on Wednesday 13 November 2019 has been added.

  19. Planned downtime for Tuesday 12 November 2019 9pm to 6pm Wednesday 13 November 2019 has been added.

  20. You will be unable to use the 'view message' part of the service from 9pm on Monday 11 November 2019 to 6am on Tuesday 12 November 2019. Information about this has been added.

  21. Planned downtime for Saturday 2 November 2019 from 12:45am to 2:45am has been added.

  22. This service will be unavailable from 9pm on Thursday 26 September to 3am on Friday 27 September 2019. Information about this issue has been added.

  23. Planned downtime for Thursday 19 September 2019 9pm to Friday 20 September 2019 3am has been added.

  24. Planned downtime for Thursday 12 September 2019 from 9pm to 3am on Friday 13 September 2019 has been cancelled.

  25. Planned downtime for Thursday 12 September 2019 from 9pm to 3am on Friday 13 September 2019 has been added.

  26. Some of this service will be unavailable from Friday 5 April 2019 at 11:45pm to 2:30am on Saturday 6 April 2019. Information about this issue has been added.

  27. Downtime previously planned for 17 and 18 November will now take place on 24 and 25 November.

  28. Planned downtime for Wednesday 14 November 2018 9:15pm to 2:45am on Thursday 15 November 2018 has been added.

  29. Planned downtime for 3 and 4 November will now take place on 17 and 18 November.

  30. Planned downtime for 3 and 4 November added.

  31. The planned downtime for 6 April 2018 has been updated to end at 2am.

  32. An Issue about submissions on 19 March 2018 and 20 March 2018 has been added to the page.

  33. Planned downtime for Sunday 25 March 2018 has been added.

  34. Service availability section amended with 'Real Time Information submission' message.

  35. The Self Assessment service will be unavailable from 11:45pm on 5 April 2018 to 8am on 6 April 2018.

  36. The planned downtime section has been updated for the Self-Assessment service.

  37. The Self-Assessment pre population service has now been fully restored.

  38. The returns filed and filled in on 4 January 2018 issue has been resolved and returns submitted have now been processed.

  39. Service issues affecting HMRC Pre Population Service within third party software has been resolved.

  40. The returns filed and filled in on 4 January 2018 message has been updated advising customers to submit their tax return before 31 January 2018.

  41. Service issues updated to advise customers that they are unable to use HMRC Pre Population Service within third party software.

  42. Service availability has been updated to advise an issue affecting Individuals and Agents using the Self Assessment Service has been resolved.

  43. Service availability section updated.

  44. The returns filed and filled in on 4 January 2018 message has been updated advising customers on how to submit your saved return.

  45. Message about issues regarding returns filed and filled in on 4 January 2018 added.

  46. A message about some customers experiencing technical difficulties and delayed submission responses has been added to the page.

  47. Service availability section updated.

  48. There is a service availability issue causing delayed submission responses.

  49. Planned downtime for 13 October 2017 to 15 October 2017 added to the page.

  50. Service issues has been updated to advise an issue affecting Individuals and Agents using the Self Assessment Service has been resolved.

  51. The service issues section has been updated.

  52. Service issues has been updated to advise that customers using Verify to access online services are now able to request a repayment and claim to reduce payments on account.

  53. Service issues has been updated to advise the Self Assessment tax return online submission problem has been resolved.

  54. The service issues section has been updated.

  55. The service issues section has been updated.

  56. Service issues section has been updated.

  57. Service issues section has been updated.

  58. Service issues update has been added to the page.

  59. Planned downtime has been added to this page.

  60. The Self Assessment customers using Verify to access online services message has been amended in the Service issues section.

  61. Service issue message has been added to the page.

  62. Agents unable to log in to their online account issue updated to show the problem has now been resolved.

  63. The 'Agents unable to log in to their online account' message has been updated.

  64. Service issue message has been added to the page.

  65. Service issues section has been updated.

  66. Service issues section has been updated.

  67. The service issues section has been updated.

  68. Service issues section has been updated.

  69. Planned downtime has been added to this page.

  70. Planned downtime has been added to this page.

  71. Downtime for the Self Assessment online service has been added to this page.

  72. Latest updates on creating a new Government Gateway account.

  73. First published.

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Self Assessment — service availability and issues

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Latest updates on the availability and any issues affecting the Self Assessment online service.

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