When Employers Must Use Form I-9 Employment Verification
Form I-9 is crucial for verifying employment eligibility in the U.S. All employers must use this form for every new hire to confirm their identity and right to work. This requirement has been in place since November 6, 1986, under U.S. law. Both U.S. citizens and noncitizens must complete this form. Employers have three business days from the first day of employment to complete the process. Special rules apply for rehired employees, reverification of documents, and workers hired for less than three days.