What is a Social Insurance Number (SIN)?
A SIN number is a nine digit number that you need to work in Canada or to have access to government programs and benefits. The fastest way to apply for a SIN number is to submit an application at a local Service Canada Centre. To locate the office nearest to you, call 1 800 O-Canada (1-800-622-6232) or visit http://www.servicecanada.gc.ca. Documentation indicating identity and status in Canada will be needed in the application process.