Guidance

Agent authorisation technical specifications: Corporation Tax

Agent authorisation Corporation Tax technical specifications for software developers.

• From: HM Revenue & Customs
• Published: 1 January 2014
• Last updated: 16 June 2023 — See all updates

Documents

CT test case data 1.3

PDF, 46.2 KB, 3 pages

This file may not be suitable for users of assistive technology.

Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email different.format@hmrc.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

CT business validation rules: 1.3

PDF, 89.7 KB, 11 pages

This file may not be suitable for users of assistive technology.

Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email different.format@hmrc.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

CT valid xml sample: 1.2

XML, 1.8 KB

This file may not be suitable for users of assistive technology.

Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email different.format@hmrc.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Details

Corporation Tax technical specifications for software developers working with the Agent Authorisation Online service.

Published 1 January 2014
Last updated 16 June 2023 + show all updates

1. 16 June 2023

   CT recognition process: 1.2 PDF removed.

2. 6 February 2018

   CT recognition process pdf has been updated to version 1.2.

3. 1 January 2014

   First published.