Self Assessment technical specifications (2015): individual returns
Individual returns technical specifications for Self Assessment Online software developers.
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Individual returns technical specifications for software developers working with the Self Assessment online service.
Last updated 9 April 2016 + show all updates
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Exclusions version 4.0 (19 January 2016) added to the page.
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Exclusion v3.1 (19 October 2015) has been added to this page.
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Exclusion v3.0 (14 October 2015) has been added to this page.
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Exclusions version 1.0 (5 January 2015) replaced with Exclusions version 2.0 (6 August 2015).
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Tax and National Insurance contributions calculation version 11.1 (January 2015) published
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Recognition process and additional test case data version 1.0 (9 February 2015) added.
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First published.