Social Insurance Number

Apply in Person
1 – Get an application form online or from your local Service Canada Centre
2 – Complete application
3 – Collect the documents required
4 – Take your application and documents to your local Service Canada Centre

If you meet all the requirements, you can get your number the day you hand in the application. Service Canada will mail you a SIN card within 10 business days. There is no application fee for your first SIN.

Online application:
http://www.servicecanada.gc.ca/eforms/forms/nas-2120-(09-12)e.pdf

Service Canada Centres

Carleton Place:
46 Lansdowne Avenue, Carleton Place, ON

Smiths Falls:
91 Cornelia Street West, Suite 115, Smiths Falls, ON

Information on documents required to apply for SIN:
http://www.servicecanada.gc.ca/eng/sin/apply/proof.shtml

Apply by Mail

You can also apply by mail. You have to send your original documents (not photocopies) with your application. Send your completed application and original documents to:

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

This takes about 3 weeks. There is no application fee for your first SIN.

More information on Social Insurance Number (SIN)
http://www.settlement.org/sys/faqs_detail.asp?faq_id=4001100
http://www.servicecanada.gc.ca/eng/sc/sin/index.shtml