Guidance

Self Assessment generic technical specifications (2016)

Returns technical specifications for Self Assessment Online software developers.

Documents

Transaction Engine: Support for software developers

HMRC(IR)mark: support for software developers

Attachment recognition version 1.0 (10 February 2016)

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Details

Returns technical specifications for software developers working with the Self Assessment Online service.

Published 16 October 2015
Last updated 13 April 2016 + show all updates
  1. Attachment recognition version 1.0 (10 February 2016) file has been added to the page.
  2. First published.