Guidance

Real Time Information internet submissions: 2027 to 2028 technical specifications

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

• From: HM Revenue & Customs
• Published: 9 September 2026

Documents

RTI RIM 2028 v2.0.zip

ZIP, 972 KB

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Changes between 2026 to 2027 and 2027 to 2028 RIM v2.0

ODT, 13.4 KB

This file is in an OpenDocument format

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Details

Test service support from October 2026. Live service from March 2027.

Published 9 September 2026