Information on how to find your National Insurance number and how to get a letter with your National Insurance number on.

You need your National Insurance (NI) number for work, tax, and benefits. If you’ve lost it, or never received one, this guide explains how to find your National Insurance number or request a …

Apr 1, 2026 · Lost your National Insurance Number? You can find it through old payslips, your personal tax account, or the HMRC app in minutes.

Feb 7, 2025 · On certain documents – You can usually find your National Insurance number on your payslips or P60, or on any other letters about tax, pensions or benefits from HMRC. Online – If you …

Feb 14, 2025 · How to find my National Insurance number? It’s simpler than you might think! I’ll walk you through the process step by step 🌿, so you can locate your number without any hassle.

Nov 20, 2025 · There are several ways to find out your NI number. You can check it online, find it on old documents such as payslips or P60's, or request it by post.

Lost your National Insurance number? Follow this step-by-step guide to easily locate and retrieve your UK National Insurance number.