For purposes of the employer shared responsibility provisions, a full-time employee is, for a calendar month, an employee employed on average at least 30 hours of service per week or 130 hours of service per month.
There are two methods for determining full-time employee status:
The monthly measurement method and The look-back measurement method.
Under the monthly measurement method, the employer determines if an employee is a full-time employee on a month-by-month basis by looking at whether the employee has at least 130 hours of service for each month.
Under the look-back measurement method, an employer may determine the status of an employee as a full-time employee during what is referred to as the stability period, based upon the hours of service of the employee in the preceding period, which is referred to as the measurement period.