Guidance

Self Assessment technical specifications (2025) for trust and estate returns

Use this technical documentation for trust and estate returns if you’re a software developer working with the Self Assessment online service.

• From: HM Revenue & Customs
• Published: 22 October 2024

Documents

Self Assessment Trust RIM Artefacts version 1.0

ZIP, 1.98 MB

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Details

Trust and estate returns technical specifications for software developers working with the Self Assessment online service.

Published 22 October 2024