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.

June 2018
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Upcoming Tax Dates

June 10 — Employees who work for tips
If you received $20 or more in tips during May, report them to your employer Details

June 15 — Individuals
If you are a U.S. citizen or resident alien living and working (or on military duty) outside the United States and Puerto Rico, file Form 1040 and pay any tax, interest, and penalties due. If you want additional time to file your return, file Form 4868 to obtain 4 additional months to file Details

June 15 — Individuals
Make a payment of your 2018 estimated tax if you are not paying your income tax for the year through withholding (or will not pay in enough tax that way). Use Form 1040-ES. This is the second installment Details

June 15 — Corporations
Deposit the second installment of estimated income tax for 2018 Details

June 15 — Social security, Medicare, and withheld income tax
If the monthly deposit rule applies, deposit the tax for payments in May

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