https://www.canada.ca/en/employment-social-development/services/sin/reports/apply.html
Call: 1-800-206-7218 (Option 3)
If you are a Canadian citizen, a permanent resident or a temporary resident, you need a Social Insurance Number (SIN) to work in Canada or to receive benefits and services from government programs.
Children who are 12 years of age or older may apply for their own SIN.
Parents and individuals who are legally authorized to act on behalf of the applicant (for example, a legal guardian or legal representative) can also apply for a SIN for children under the age of majority in their province, and adults in their care.
Note: There is no fee to apply for a SIN
You can opt to apply in person:
You can complete the following tasks at a Service Canada office:
60 Gillingham Drive
Brampton, Ontario
Monday to Friday from 8:30 am to 4:00 pm
Note: To apply for a Social Insurance Number (SIN), to request a confirmation of your SIN or to amend your SIN record, you must provide a valid primary document that proves your identity and legal status in Canada.