[header] How to verify employee eligibility [title] Determine when you must complete form i-9. [step] Form i-9 must be completed every time you hire a new employee. You are considered to " hire " an employee as soon as you start paying them for their services. 
An " employee " is someone who performs services or labor within the united states. Form i-9 should not be filled out until you have offered the employee a job and he or she accepts your offer.