Getting Your UK National Insurance Number: A Guide for Canadians
A National Insurance (NI) number is a nine-digit code that identifies you to HMRC and the Department for Work and Pensions for tax, employment and benefits purposes. Think of it as the UK's version of your Social Insurance Number.
Who can apply
You need to be living in the UK, have the right to work here, and be working, looking for work, or have a confirmed job offer. Most Canadians arriving on a skilled worker visa or the Youth Mobility Scheme meet this automatically.
How to apply
Applications go through a single online service, apply-national-insurance-number.service.gov.uk. There's no standard in-person interview requirement, an appointment or postal ID submission is only needed if you can't provide digital photo proof of your documents.
What you'll need
- Your passport.
- A photo of yourself holding your passport.
- Photos of any other ID documents requested during the application.
You can still apply without these if needed, but supplying them upfront is the fastest route.
What to do with it once you have it
Give it to your employer for payroll, quote it when you register for a workplace pension or open certain financial products, and keep it for any dealings with HMRC. Your NI number stays the same for life, so if you've worked in the UK before on a previous IEC or working holiday visa, you'll reuse the same number rather than being issued a new one.
Key Takeaways
- Apply online at apply-national-insurance-number.service.gov.uk, no fee, no standard in-person interview.
- You can start working before your number arrives if you can prove your right to work.
- Allow up to 4 weeks for processing.
- It's issued once and stays the same for life, even across multiple stints living in the UK.
Frequently Asked Questions
Do I need an NI number before I can open a UK bank account?
Not usually. Most banks will open an account with proof of ID and address, though having your NI number ready can make some steps smoother, particularly registering for a workplace pension once you're employed.
I lived in the UK before on an IEC or working holiday visa. Do I need to reapply?
No. Your NI number from any previous UK stay is still valid and stays yours for life. Use that number rather than applying for a new one.
Planning your move from Canada to the UK?
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