A Social Insurance Number (SIN) is a unique nine-digit number that is assigned to Canadian citizens, permanent residents, and temporary residents who are authorized to work in Canada. It is used by the government to track an individual’s employment history and income for the purposes of taxation and social programs.
Applying for a SIN is a straightforward process that can be completed online, by mail, or in person at a Service Canada office. The requirements for applying for a SIN vary depending on an individual’s citizenship or residency status. Generally, applicants will need to provide proof of identity, such as a passport or driver’s license, as well as proof of their legal status in Canada, such as a birth certificate or permanent resident card.
