The employer must examine these documents to determine whether they reasonably appear to be genuine and relate to the employee, then record the document information on the employee’s Form I-9. The employee must also present their employer with acceptable documents as evidence of identity and employment authorization. On the form, an employee must attest to their employment authorization. Both employees and employers (or authorized representatives of the employer) must complete the form. employers must properly complete Form I-9 for every individual they hire for employment in the United States. Use Form I-9 to verify the identity and employment authorization of individuals hired for employment in the United States.