Social Insurance Number (SIN)

A Social Insurance Number (SIN) is a unique nine-digit identifier issued by the Canadian government to residents and workers. It is primarily used to administer government programs like employment insurance, retirement benefits, and taxes. Your SIN ensures that your earnings are properly linked to your record and helps government agencies track your contributions and benefits. It is important to keep your SIN confidential to prevent identity theft. You should provide it only when required by authorized entities, such as employers or government agencies, and store it securely to protect your personal information.