What form shows an employee's eligibility to work in the United States?

The form that shows an employee's eligibility to work in the United States is the I-9. This form is used by employers to verify the identity and employment authorization of individuals hired for employment in the U.S. When completing the I-9, employees must provide documentation that establishes both their identity and their right to work in the country.

The process outlined in the I-9 form is essential for compliance with federal immigration laws, as it helps ensure that employers do not hire individuals who are not authorized to work in the United States. As such, it serves as a critical tool in safeguarding job opportunities for legally eligible workers.

In contrast, the W-2 is a tax form used to report wages paid to employees and the taxes withheld from them, while the 1099 form is typically used to report income earned by independent contractors. The W-4 is a form for employees to indicate their tax withholding preferences to their employer. These forms, while important for tax and wage reporting, do not address employment eligibility in the context of immigration laws.