Dealing with HMRC – guidance

Stamp Duty Land Tax: technical specifications

Technical specifications for Stamp Tax Online software developers.

Documents

How to use the test services version 2.4

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SDLT baseline schema: 4.20

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Business rules: 1.28

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Response messages version 2.5

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GovTalkHeader & IRheader business rules version 1.2)

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SDLT test case data version 5.0

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SDLT valid xml example version 1.6

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SDLT recognition process version 1.1

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SDLT additional information version 1.5

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Detail

Technical specifications for software developers working on the Stamp Tax Online service.