This version is in beta - expect some breaking changes.

Agent Authorisation API

Version and status
Available in Sandbox Yes
Sandbox base URL
Available in Production Yes
Production base URL


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.



Fraud Prevention



View API endpoints
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.