Does my Social Insurance Number (SIN) change when I renew it?

No. For temporary residents holding a 9-series number, your actual Social Insurance Number stays the same when you renew. Service Canada simply updates the internal file history to give your SIN a new expiration date matching your updated IRCC permit.

Can I legally work in Canada if my SIN has expired but I have maintained status?

Yes. If you applied to extend your study or work permit before its original expiry date, you possess maintained status. You are legally allowed to continue working under the same conditions while awaiting the IRCC decision, even if the expiration date on your current SIN record has passed.

Can I renew my SIN using an IRCC application confirmation email?

No. Service Canada explicitly rejects application tracking notices, submission receipts, or email confirmations from IRCC. They require your physical, official, and newly issued work or study permit to authorize a legal update to your SIN record.

How long does it take for Service Canada to process an online SIN renewal?

Service Canada processes valid online applications within 5 business days. Once processed, you can view your digital confirmation letter via your My Service Canada Account (MSCA). A physical copy will arrive via mail within roughly 10 business days.

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How to Renew a Temporary Social Insurance Number (SIN) in Canada Before It Expires

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