Dealing with HMRC – guidance

Self Assessment technical specifications (2015): individual returns

Individual returns technical specifications for Self Assessment Online software developers.

Documents

Self Assessment Individual RIM artefacts version 1.0 (18 September 2014)

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Tax and National Insurance contributions calculation version 11.1 (22 January 2015)

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Tax and National Insurance contributions calculation version 1.0, stage 13 (18 September 2014)

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Test case generator version E5.0 (6 October 2014)

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MTR mapping document version 1.0 (13 October 2014)

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Exclusion version 4.0 (19 January 2016)

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Recognition process and additional test case data version 1.0 (9 February 2015)

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Individual valid sample version 1.0 (5 January 2015)

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Detail

Individual returns technical specifications for software developers working with the Self Assessment online service.