Guidance

Corporation Tax generic technical specifications

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

From:
HM Revenue & Customs
Published
29 May 2012
Last updated
24 April 2024 — See all updates

Documents

Transaction Engine: Support for software developers

https://www.gov.uk/government/collections/government-gateway-support-for-software-developers

How to use the test service: 1.4a

ODT, 38 KB

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HMRC (IR) mark: support for software developers

https://www.gov.uk/government/collections/hmrcirmark-support-for-software-developers

Corporation Tax online service guidance: 1.6

PDF, 81.7 KB, 16 pages

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Corporation Tax online service validation rules: 1.17a

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Corporation Tax recognition instructions 2023

ODT, 6.95 KB

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Details

Technical specifications for Corporation Tax online services for software developers.

Updates to this page

Published 29 May 2012
Last updated 24 April 2024 + show all updates

  1. Corporation Tax online service validation rules 1.16a guidance has been replaced with version 1.17a because the error message for errors 1611 and 3317 has been updated.

  2. Corporation Tax recognition instructions 2023 has been added.

  3. The ‘Corporation Tax online service validation rules 1.15a’ guidance has been replaced with version 1.16a because the condition row for error 9043 has been updated. For V2 submissions — check that box 64 agrees with the result of the computation of marginal starting rate or small companies’ relief. For V3 submissions — check that box 435 agrees with the result of the computation of marginal relief.

  4. 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.

  5. 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.

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

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

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

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

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

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

  12. First published.

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