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 on behalf of a child
• I am a parent applying for my newborn child born in Ontario
• I am a legal guardian or legal representative applying for an adult

Parents or Legal Guardians Applying on behalf of 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 on behalf of a child under the age of majority in their province.

Here's what you'll need if you are applying on behalf of a child:

At a Service Canada Centre

• your SIN OR your original document(s)
• the child's original document(s)
• an original document or certified copy of a document that confirms your legal guardianship, if you are a legal guardian (in Quebec, a notarized will is an acceptable document).
• the $10 fee if required

If your application and document(s) are in order, you will get your child's SIN in one visit and receive the card within 10 business days.

By Mail

• a completed SIN application form
• the child's original document(s)
• your original document(s)
• an original document or certified copy of a document that confirms your legal guardianship, if you are a legal guardian (in Quebec, a notarized will is an acceptable document.
• the $10 fee, 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 return your document(s) and SIN card in the same way. We are not responsible for document(s) lost in the mail.

If the SIN application meets the requirements, you will receive the child's SIN card by mail within 20 business days from the date the application is received.

Legal Guardians or Legal Representatives applying on behalf of an Adult

Here's what you'll need if you are applying on behalf of an adult:

At a Service Canada Centre

• an original document or certified copy of a document that confirms your legal guardianship or representation issued by a provincial authority (in Quebec, a notarized will is an acceptable document).
• your SIN or your original document(s)
• original documents confirming the identity of the person for whom you are applying
• the $10 fee, if required

If your application and 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 10 business days.

By Mail

• a completed SIN application form
• original document(s) confirming the identity of the person for whom you are applying
• your original document(s)
• an original document or certified copy of a document that confirms your legal guardianship or representation (in Quebec, a notarized will is an acceptable document).
• the $10 fee, 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 return your documents and SIN card in the same way. We are not responsible for documents lost in the mail.

If the SIN application meets the requirements, you will receive the SIN card for the person for whom you are applying by mail within 20 business days from the date the application is received.