Dealing with HMRC – guidance

Agent authorisation technical specifications: Construction Industry Scheme

Agent authorisation Construction Industry Scheme technical specifications for software developers.

Documents

CIS test case data: 1.2

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CIS recognition process: 1.1

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CIS business validation rules: 1.0

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CIS valid xml sample: 1.1

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Detail

Construction Industry Scheme (CIS) technical specifications for software developers working with the Agent Authorisation Online service.