|Title||Application for a Social Insurance Number|
|Purpose|| You do not need to complete this application form if you are applying in-person at a Service Canada point of service.
This application form should be completed if you meet the special measures indicated below and wish to apply for a first-time Social Insurance Number, a confirmation of your SIN, or to modify your Social Insurance Number record:
If you are eligible to apply by mail, your application must be accompanied by original proof-of-identity documents. Service Canada is not responsible for documents lost in the mail. Refer to the Instruction Guide for more details.
|Group||Social Insurance Number|
Returning the Form
SOCIAL INSURANCE NUMBER APPLICATION
PDF: NAS-2120, 469 KB, printed on 8 pages (8.5x11)
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