Any of your clients who are deemed applicable large employers, 50 full-time equivalent employees or more, should have already started tracking employee hours to determine who is a full-time employee (an employee who works on average 30 or more hours per week) in order to comply with both the Affordable Care Acts employer mandate and the IRS 6056 information reporting requirements.
Under the employer mandate, commonly referred to as pay or play, applicable large employers may be subject to a penalty tax if they have not properly identified their full-time employee population and offered them the required benefits.