How to Change the Name on a SIN Number

You need to prove your identity to change your SIN card.

A SIN (Social Insurance Number) is the number assigned to each Canadian citizen in order to work and receive government assistance. You can obtain a card with your unique number on it, much like a Social Security card used by Americans. If you get married or otherwise legally change your name, you will need to order a new SIN card with your new name on it. You can easily apply for a new SIN card if you have some identifying documents.

Things You'll Need

• Identification
• Envelope
• Stamp
• Application

Instructions

1. Obtain a certified copy of your birth certificate, proof of Canadian citizenship, or permanent resident card. Order a copy from the Vital Statistics bureau by filling out the application (see Resources).

2. Print the Social Insurance Number application form. Check off the box entitled "Legal Change of Name" at the top of the form. Write in your name, birthday, parents' names, current address and SIN.

3. Mail your application with your identification to the Social Insurance Registration Office:

   Service Canada
   Social Insurance Registration Office
   P.O. Box 7000
   Bathurst, New Brunswick
   E2A 4T1

4. Wait up to 20 days to receive your new SIN card. There is no charge for changing your name on your SIN card.

References

• Service Canada: How Do I Apply For a SIN?

Resources

• Vital Statistics: Get a Copy of Your Birth Certificate
• SIN: Application Form