Guidance

Corporation Tax generic technical specifications

Find guidance for software developers working with the Corporation Tax online service.

Documents

Transaction Engine: Support for software developers

How to use the test service: 1.4a

This file is in an OpenDocument format

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.

HMRC (IR) mark: support for software developers

Corporation Tax online service guidance: 1.6

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.

Corporation Tax online service validation rulesrules: 1.141.15a

This 14file pages is in an OpenDocument format

Details

Technical specifications for Corporation Tax online services for software developers.

Published 29 May 2012
Last updated 235 NovemberJanuary 20222023 + show all updates
  1. The ‘Corporation Tax online service validation rules 1.14’ guidance has been replaced with a more accessible 'Corporation Tax online service validation rules: 1.15a' version.

  2. The 'How to use the test service: 1.4' guidance has been replaced with a more accessible 'How to use the test service: 1.4a' version.

  3. Corporation Tax online service validation rules' version 1.13 has been replaced with version 1.14 to reflect changes to error messages.

  4. How to test services: 1.4 has been updated.

  5. The 'Corporation Tax online service validation rules' version 1.12 has been replaced with version 1.13.

  6. How to test services: 1.3 is updated to version 1.4.

  7. Corporation Tax online service validation rules 1.12 updated to include error code 3321.

  8. Corporation Tax online service validation rules updated to version 1.12 - March 2015

  9. First published.