When is the deadline to complete an I-9 for an employee who will work indefinitely?

The correct response aligns with the guideline that mandates an employer to complete the Form I-9, Employment Eligibility Verification, for an employee who is authorized to work indefinitely. According to federal regulations, the employer must ensure that the I-9 form is completed by the end of the employee's third day of work for pay.

When an employee starts working, they must provide documentation to verify their identity and employment eligibility. The employer is then required to complete the I-9 form based on that documentation.

This three-day requirement is crucial because it ensures that all employees are verified for their eligibility to work in the United States promptly. Failure to complete the I-9 within this timeframe could lead to penalties and legal issues for the employer. Therefore, the deadline is distinctly set at the end of the fourth day of employment, which falls in line with the correct choice.