Construction Industry Scheme: generic technical specifications

Construction Industry Scheme (CIS) technical specifications for software developers.


Transaction Engine: Support for software developers

How to use the test service: 2.4

Core schema version 2.0

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Software developers: frequently asked questions


Technical specifications for software developers working with the Construction Industry Scheme Online service.

Published 28 October 2003
Last updated 19 January 2018 + show all updates
  1. The 'How to use the test service' document has been updated to version 2.4, and the 'Hints and tips on GovTalk and IRheader' document has been updated to version 1.3.
  2. First published.