Guidance

Payroll technical specifications: National Insurance

National Insurance guidance for software developers working with payroll software.

From:
HM Revenue & Customs
Published
1 January 2014
Last updated
30 SeptemberJanuary 20222023 — See all updates

Documents

National Insurance guidance for software developers (2022(2023 to 2023)2024) — effective from 6 NovemberApril 20222023

ODT, 625127 KB

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National Insurance guidance for software developers (2022 to 2023) — effective from 6 JulyNovember 2022

ODT, 618625 KB

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National Insurance guidance for software developers (2022 to 2023) — effective from 6 April 2022 to 5 July 2022

ODT, 616618 KB

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National Insurance guidance for software developers (2021(2022 to 2022)2023) — effective from 6 April 2022 to 5 July 2022

ODT, 562616 KB

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National Insurance guidance for software developers (2020 to 2021)

PDF, 815 KB, 42 pages

National Insurance guidance for software developers (2019(2021 to 2020)2022)

PDFODT, 590562 KB, 38 pages

National

This Insurancefile guidanceis forin softwarean developers (2018 to 2019)OpenDocument

PDF, 348 KB format

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National Insurance guidance for software developers (2017(2020 to 2018)2021)

PDF, 487815 KB, 42 pages

National Insurance guidance for software developers (2019 to 2020)

PDF, 590 KB, 38 pages

National Insurance guidance for software developers (2018 to 2019)

PDF, 348 KB

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Details

Technical specifications giving National Insurance calculation methods and guidance for payroll software developers.

Published 1 January 2014
Last updated 30 SeptemberJanuary 20222023 + show all updates

  1. National Insurance guidance for software developers effective from 6 April 2023 has been added. Guidance for 2017 to 2018 has been removed.

  2. National Insurance guidance effective from 6 November 2022 has been added. Guidance for 2014 to 2015, 2015 to 2016 and 2016 to 2017 has been removed.

  3. National Insurance guidance has been added to be used from 6 July 2022 until the end of the tax year 2022 to 2023.

  4. The 2022 to 2023 National Insurance guidance for software developers has been added.

  5. The 2021 to 2022 National Insurance guidance for software developers has been added.

  6. The 2020 to 2021 National Insurance guidance for software developers has been added.

  7. The 2019 to 2020 National Insurance guidance for software developers has been added.

  8. The December 2017 version of the NI Guidance for Software Developers specification has been replaced with the January 2018 version.

  9. The 2018 to 2019 National Insurance guidance for software developers has been added.

  10. NI guidance for software developers (2017 to 2018) has been published

  11. The National Insurance guidance for software developers (2016 to 2017) attachment has been added to the page.

  12. Example 4 (pages 38 to 41) revised January 2015.

  13. First published.