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Guidance

Real Time Information internet submissions: 2026 to 2027 technical specifications

Real Time Information (RTI) Rules and Interface Management (RIM) artefacts and supporting technical specifications for software developers.

Documents

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Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email different.format@hmrc.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email different.format@hmrc.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Details

Test service support from October 2025. Live service from March 2026.

Updates to this page

Published 7 August 2025
Last updated 16 September 2025 show all updates
  1. 'RTI data item guide 2026 to 2027 v1.0' has been added.

  2. First published.

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