Guidance and regulation

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Get your National Insurance number by post

Use form CA5403 to request a copy of your National Insurance number by post.
- From: HM Revenue & Customs
- Updated: 8 May 2024
Rates and allowances: National Insurance contributions

Rates, allowances and limits for National Insurance.
- From: HM Revenue & Customs
- Updated: 6 April 2024
- Rates and allowances: National Insurance contributions
  There are different ‘classes’ of National Insurance (NI). The type people…
Get a National Insurance number for a looked after child

How to get a National Insurance number for a child who is in the care of a local authority.
- From: HM Revenue & Customs
- Updated: 2 December 2020

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