Guidance

Self Assessment generic technical specifications (2016)

Returns technical specifications for Self Assessment Online software developers.

• From: HM Revenue & Customs
• Published: 16 October 2015
• Last updated: 13 April 2016 — See all updates

Documents

Transaction Engine: Support for software developers

https://www.gov.uk/government/collections/government-gateway-support-for-software-developers

How to use the test service version 1.0 (5 October 2015)

PDF, 177 KB, 7 pages

Non form validation rules version 1.0 (5 October 2015)

PDF, 210 KB, 12 pages

HMRC(IR)mark: support for software developers

https://www.gov.uk/government/collections/hmrcirmark-support-for-software-developers

Test in live information version 1.0 (5 October 2015)

PDF, 133 KB, 2 pages

Acceptable characters version 1.0 (5 October 2015)

PDF, 136 KB, 1 page

Copy declaration version 1.0 (5 October 2015)

PDF, 115 KB, 2 pages

Attachment recognition version 1.0 (10 February 2016)

169 KB

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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. 13 April 2016

   Attachment recognition version 1.0 (10 February 2016) file has been added to the page.

2. 16 October 2015

   First published.