THE CPA'S SOCIAL INSURANCE NUMBER VERIFICATION TOOL

The CPA’s Social Insurance Number (SIN) Verification Tool was designed to help payroll practitioners confirm if a SIN is valid. It cannot, however, confirm that a valid SIN belongs to a specific individual.

Employers must ask to see the SIN card of all new employees and the employee must show it within three days of starting employment.

A SIN is confidential and should only be used for statutory reporting purposes. Under no circumstances should any documents bearing an individual’s SIN be left exposed and unattended.