What type of identifier is typically required to verify a person's identity on the job?

A Social Security card is often required to verify an individual's identity on the job because it serves as proof of a person's eligibility to work in the United States. It is linked to the individual's identity in government records and provides a unique identifier that distinguishes them from others. Employers use the Social Security number for various purposes, including tax documentation and benefits administration.

While other identifiers can play roles in establishing identity, they may not be as universally accepted or required for employment verification as a Social Security card. For instance, a Tax ID is generally used for tax purposes rather than for employment verification. An employee number is unique to the company and wouldn't necessarily authenticate identity on a broader scale. A passport is primarily an identification document for travel and may not be the first choice for job identity verification unless specified for certain roles, such as those requiring international travel or specific clearance.