National Insurance numbers
Services
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Find out if you've paid enough National Insurance to qualify for the full State Pension - check gaps, contributions and credits, get a National Insurance statement, call the helpline.
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What to do if you lose your National Insurance number, information about where to find it and who to contact.
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Apply for your first National Insurance number - you must have the right to live and work in the UK.
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Use your personal tax account to view and save your National Insurance number, download a letter confirming it, or use form CA5403 to get your number by post.
Guidance and regulation
News and communications
Christmas workers can save time with HMRC app
Press release