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Proof & letters 6 min read Updated 12 Feb 2026

When you need an NI confirmation letter (and when you don’t)

Typical scenarios where organisations ask for proof and what information to prepare.


Most people only need their NI number — not a letter — but some organisations will ask for official confirmation. If you cannot quickly locate your NI number, a confirmation letter can be the best option.

Common reasons people request a letter

  • Starting a job and payroll needs confirmation
  • Updating records with an employer or agency
  • Providing proof for certain applications that request NI details

Try to locate it first

Check payslips, P60, or tax letters, or follow the official GOV.UK steps.

GOV.UK: Find your National Insurance number

Need a confirmation letter?

Use NinoDirect’s support service to request confirmation.

Request confirmation letter


Need help with the next step?

We provide independent assistance with HM Land Registry documents and common register update applications. HM Land Registry reviews and decides all applications.

Order Title Register / Plan Deceased Joint Proprietor (DJP) Update the register (AP1) Restrictions & Notices Property Alert

For official information, you can also verify guidance via GOV.UK and HM Land Registry Practice Guides. We are an independent service and not HM Land Registry.