Which form requires employees to provide documentation of identity and work authorization?

The I-9 form is specifically designed for employers to verify the identity and work authorization of their employees in the United States. When an employee is hired, they must complete the I-9 form to demonstrate that they are legally allowed to work in the country. This process involves providing accepted forms of identification, such as a U.S. passport or a driver's license along with a Social Security card.

This form is crucial for compliance with immigration laws, as it helps prevent unauthorized employment. Employers are required to keep the I-9 form on file for each employee and may be subject to penalties if they do not properly verify work authorization.

In contrast, the W-2 form reports an employee's earnings and taxes withheld but does not address identity or work authorization. The W-4 form is used by employees to indicate their tax withholding preferences, and the FAFSA is a financial aid application for students and does not pertain to employment verification.