A Social Insurance Number (SIN) is a unique nine-digit number that is used by the Canada Revenue Agency (CRA) to identify individuals for tax and benefit purposes. It is also used by other government departments and agencies, such as Employment and Social Development Canada (ESDC) and Service Canada, to administer social programs and services. You must have a SIN to work in Canada or to access certain government benefits and services.
There are several ways to apply for a SIN. You can apply online through the CRA’s website, by mail, or in person at a Service Canada office. The application process is relatively simple and straightforward. You will need to provide your personal information, such as your name, date of birth, and address, as well as your immigration status. You will also need to provide original documents to prove your identity and your eligibility to work in Canada.