Booking your appointment Once you have your documents in order, you must book an appointment at a National Insurance number processing centre. The number is structured with two prefix letters, six digits, and one suffix letter.
Book Appointment National Insurance Number Centre
You are generally eligible if you are resident in the UK and either aged 16 or over, or you are under 16 but have permission to work. You also need permission to work or study in the UK, which means you must hold a valid visa or have leave to remain.
It is issued by His Majesty's Revenue and Customs (HMRC) and remains the same for life, ensuring that your tax records and state benefits stay with you regardless of job changes or address moves. Without it, you cannot be paid correctly through the Pay As You Earn (PAYE) system or access certain state services.
Book Appointment at a National Insurance Number Processing Centre
Marriage certificate (if you have changed your name and are not using a passport). Acceptable documents checklist Valid biometric residence permit or biometric residence card.
More About How do you get a national insurance number
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