Guidance

Self Assessment technical specifications for software developers (2018)

Use this guidance for support if you're a software developer working with the Self Assessment Online service.

• From: HM Revenue & Customs
• Published: 15 January 2018
• Last updated: 6 September 2018
  Show all updates

  1. 6 September 2018

     Non form validation rule document updated.

  2. 6 March 2018

     Attachments recognition version 1.0 has been added to the page.

  3. 15 January 2018

     First published.

Documents

Transaction Engine: support for software developers

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

Non form validation rules version 1.1 (15 August 2018)

PDF, 178 KB, 10 pages

HMRC(IR) mark: support for software developers

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

Acceptable characters version 1.0 (19 December 2017)

PDF, 208 KB, 1 page

This file may not be suitable for users of assistive technology.

Request an accessible format

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email different.format@hmrc.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Copy declaration version 1.0 (1 December 2017)

PDF, 185 KB, 2 pages

This file may not be suitable for users of assistive technology.

Request an accessible format

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email different.format@hmrc.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Attachments recognition version 1.0 (13 February 2018)

ZIP, 166 KB

This file may not be suitable for users of assistive technology.

Request an accessible format

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email different.format@hmrc.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Details

These documents are technical specifications for software developers working with the Self Assessment Online service.