HMRC’s Plan to Strengthen Standards for Third-Party Software
This document outlines HMRC’s plan for strengthening standards for third-party integrated software and how we will collaborate with industry to develop these standards together.
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This document sets out HMRC’s proposed direction for strengthening standards for third‑party software that integrates with the tax and customs system. It defines who will be in scope for strengthened standards and explains how they will complement existing requirements such as in the Developer Hub Terms of Use. It outlines the themes where standards will be strengthened, including product integrity, supporting correct outcomes, data accountability, error management, and, misuse and fraud prevention. It also clarifies the distinction between provider‑level and product‑level standards. Finally, the document sets out how HMRC will define a clear and workable approach to how strengthened standards will be governed and upheld and provides a high‑level timeline for engagement, testing, and implementation through 2026 to 2027.