This version is in beta - expect some breaking changes.

Agent Authorisation API

Version and status	Select version and status
Available in Sandbox	Yes
Sandbox base URL	https://test-api.service.hmrc.gov.uk
Available in Production	Yes
Production base URL	https://api.service.hmrc.gov.uk

Overview

This API allows tax agents to:

request authorisation to act on a client's behalf for either Making Tax Digital for VAT or Making Tax Digital for Income Tax
have the option to cancel an authorisation request
check the status of authorisations already requested
query active or inactive relationships.

Why do these endpoints look different?

The endpoints for this API now use the Open API Specification (OAS).

The API has not changed. You do not need to make any updates to your application if you already use this API.