IRS Health Care Tax Tip 2015-50, August 18, 2015 The Affordable Care Act applies an approach to common ownership that also applies for other tax and employee benefit purposes. This longstanding rule generally treats companies that have a common owner or similar relationship as a single employer. These are aggregated companies. The law combines these companies to determine whether they employ at least 50 full-time employees including full-time equivalents. If the combined employee total meets the threshold, then each separate company is an applicable large employer. Each company – even those that do not individually meet the threshold – is subject to the employer shared responsibility provisions. These rules for combining related employers do not determine whether a particular company owes an employer shared responsibility payment or the amount of any payment. The IRS will determine payments separately for each company. For more information about how the employer shared responsibility provisions may affect your company, see our Questions and Answers on IRS.gov/aca. For details about how to determine if you are an applicable large employer, including the aggregation rules, see Determining If You Are an Applicable Large Employer Health care tax tips Health Care Tax Tips Health Care Tax Tips - December 2016 Health Care Tax Tips - November 2016 Health Care Tax Tips - October 2016 Health Care Tax Tips - September 2016 Health Care Tax Tips Related HealthCare.gov Individual shared responsibility provision The Premium Tax Credit – The basics Affordable Care Act – What to expect when filing your tax return Gathering your health coverage documentation for the tax filing season ACA information center for tax professionals How to correct an electronically filed return rejected for a missing Form 8962