Social Insurance Number record

If you do not have a SIN number and you cannot visit a service Canada office, you can apply by mail here.

To update your name/gender on your SIN record, you must possess:

  • a primary identification document (e.g. updated Canadian Birth Certificate, Certificate of Canadian Citizenship, Permanent Resident Card).
  • a Change of Name Certificate may accompany a primary identification document that does not yet show the change in name requested. Take this document and apply, in person, at the nearest Services Canada office. To learn how to get a Change of Name Certificate, see the provincial document menu.

To update your name and gender visit a Service Canada Office, or write to:

Service Canada
Social Insurance Registration office
Post Office Box 7000
Bathurst NB  E2A 4T1
Canada

Toll free: 1 888 622-6232

You must province a valid primary document and supporting document for name changes. Here is information more about those documents.

Note: According to service Canada, “You now have the option to have your gender marked as “X” or not to declare your gender. Service Canada will add a note to your record indicating your choice. However, until our computer systems are upgraded to register this information, “male” or “female” will still appear on your SIN record.” If this situation applies (you need an X marker which is not available) seek legal advice.