This version is in beta - expect some breaking changes.

Check a UK VAT number API

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 enables your application to:

  • check if a UK VAT number is registered
  • view the name and address of the business that the UK VAT number is registered to
  • get a reference number that you can use to prove you checked a UK VAT number

The Check a UK VAT Number API works in two modes:

  1. Simple unverified check, which does not provide a reference number
  2. Verified check, which provides a reference number

Errors

Testing

You can use the sandbox environment to test this API.

Access a set of mock VAT registration numbers to use when testing in the sandbox environment.

Versioning

Endpoints

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.

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