Guidance

CA41: National Insurance contributions tables B, C, E, I, K and S

Use these booklets to manually calculate contributions for employees who must pay National Insurance.

From:
HM Revenue & Customs
Published
28 March 2014
Last updated
4 April 2025 鈥� See all updates

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Details

皇冠体育appse tables are for employers who are exempt from filing or unable to file payroll information online and use manual systems.

Updates to this page

Published 28 March 2014
Last updated 4 April 2025 show all updates

  1. National Insurance contributions tables B, C, E, I, K and S for 2025 to 2026 have been added.

  2. National Insurance contributions tables B, C, E, I, K and S for 2024 to 2025 have been added.

  3. A new version of the booklet has been published and should be used for payments of earnings made from 6 January 2024 to 5 April 2024.

  4. National Insurance contributions tables B, C, I and S for 2023 to 2024 have been added.

  5. This booklet is being re-issued following a change in the rate of National Insurance contributions with effect from 6 November 2022. You should use this version for payments of earnings made on or after 6 November 2022 for the remainder of the 2022 to 2023 tax year. 皇冠体育app previous versions of this booklet for the 2022 to 2023 tax year apply for employees鈥� earnings paid before 6 November 2022.

  6. 皇冠体育app CA41 booklet, National Insurance contributions tables B, C, I and S 2022 to 2023 has been updated to include the changes in the Primary Threshold announced in the Spring Statement.

  7. National Insurance contributions tables B, C, I and S for 2022 to 2023 have been added.

  8. National Insurance contributions tables B and C for 2021 to 2022 have been added.

  9. 2020 to 2021: National Insurance contributions Tables B and C has been updated.

  10. '2019 to 2020: National Insurance contributions Tables B and C' has been updated.

  11. Form CA41 has been updated to reflect new tax year changes.

  12. Form CA41 has been updated to reflect new tax year changes.

  13. Form CA41 has been updated to reflect new tax year changes.

  14. Helpbook CA41 for 2015 to 2016 has been published.

  15. First published.

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