What should I do if I have not received my SIN?

If you applied in person or through the Newborn Registration Service

You should receive your SIN in the mail within 10 business days. If more than 15 business days have passed and you would like to find out the status of your application, contact the Social Insurance Number Program.

If you applied by mail from Outside Canada

You should receive your SIN in the mail within 20 business days from the date the application is received. If more than 25 business days have passed and you would like to find out the status of your application, contact the Social Insurance Number Program.