HR professionals must verify both the identity and employment eligibility of all employees, even if they are temporary employees. Which one of the following statements is NOT correct? Employers are required to have the employee fill out the I-9 form 30 days after the first day of employment. If an audit is performed on your company, you would be required to show I-9 forms for all your workers. The INS I-9 form (Employment Eligibility Verification form) is the reporting form that determines the identity and legal work status of a worker. The employee eligibility documentation must be kept on file three years after the date of hire or for one year after termination, although some states require the I-9 form be kept on file for as long as the person is employed with the organization