How can I apply for someone else?

There are specific situations where you may have to apply for a Social Insurance Number (SIN) for someone else. All documents must be original.

Select which best describes your situation:  

• I am a parent or legal guardian applying for a child
• I am a parent applying for my newborn child born in Ontario
• I am a parent applying for my child (New Brunswick Only)
• I am a legal guardian or legal representative applying for an adult

Parents or Legal Guardians Applying for a Child

Children who are 12 years of age or older may apply for their own SIN. However, parents or legal guardians can also apply for a SIN for children under the age of majority of their province.

Here’s what you’ll need if you are applying for a child:

At a Service Canada Centre

• your SIN OR your document(s)
• your child’s document(s)
• if you are a legal guardian, you will also need to provide an original document or a certified copy confirming legal guardianship. If you live in Quebec, a notarized will appointing the person as the legal guardian is an acceptable document.
• payment, if required

If your application and identity document(s) are in order, you will get your child’s SIN in one visit and receive the card within five working days.

By Mail

• a completed SIN application form
• your child’s document(s)
• your document(s)
• if you are a legal guardian, you will also need to provide an original document or a certified copy confirming legal guardianship. If you live in Quebec, a notarized will appointing the person as the legal guardian is an acceptable document.
• payment, if required

Send your completed application and original documents to:

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

If you send your application by registered mail, we will send your document(s) and SIN card in the same manner. We are not responsible for document(s) lost in the mail.

If the application meets the requirements, you will receive the child’s SIN card in the mail within three weeks.

Legal Guardians or Legal Representatives for an Adult

Here’s what you’ll need if you are applying for an adult:

At a Service Canada Centre

• an original document or a certified copy confirming legal guardianship/representation issued by a provincial authority. If you live in Quebec, a notarized will appointing the person as the legal guardian is an acceptable document.
• your SIN OR your document(s)
• document(s) confirming the identity of the person for whom you are applying
• payment, if required

If your application and identity documents are in order, you will get the SIN for the person for whom you are applying in one visit and receive the card within five working days.

By Mail

• a completed SIN application
• document(s) confirming the identity of the person for whom you are applying
• your document(s)
• an original document or a certified copy confirming legal guardianship/representation. If you live in Quebec, a notarized will appointing the person as the legal guardian is an acceptable document.
• payment, if required

Send your completed application and original document(s) to:

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

If you send your application by registered mail, we will send your document(s) and SIN card in the same manner. We are not responsible for document(s) lost in the mail.

If the application meets the requirements, you will receive the SIN card for the person for whom you are applying in the mail within three weeks.