Looking for SIN Card Replacement, Service Canada will not issue a new SIN card if you’re looking for one. Only in cases where there is evidence that the SIN was used fraudulently would Service Canada issue a new SIN. For further details, see Protecting your SIN if you believe this may apply to you.
If you find someone else’s SIN
Please return it to a Service Canada Center or mail it to Service Canada.
Registering a newborn
If your newborn is under one year of age and you have not registered your child’s birth with your province, you can apply for your child’s SIN through your provincial Newborn Registration Service.
This service is available in all Canadian provinces, but is not yet available in the territories.
If you live in the territories, apply for your child’s SIN directly through Service Canada.