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NIM39210 | National Insurance Numbers (NINOs): Confirming a NINO: Confirmation by employer - Form CA6855

From HM Revenue & Customs · National Insurance Manual

Regulations 66 and 104 of the Social Security (Contributions) Regulations 2001

All employees must give their NINo to their Employer to enter on their payroll records.

If the employee can’t remember or find their NINo, the employer may be able to find it using the RTI NINo Verification Service. Employers need to keep a record of the employee’s details until the NINO is received, including:

  • full name

  • address

  • date of birth, and

  • gender.

The employer may have to send RTI Submissions with the employees details to HMRC, in which case the employee’s NINo may be traced automatically. If the NINo is traced, HMRC NIC&EO will notify the employer of the NINo via RTI messages.

More information about employing people can be found at: