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What is an applicable large employer?
An applicable large employer averaged at least 50 full-time employees, including full-time equivalent employees, during the prior calendar year. ALE status triggers the ACA employer shared responsibility provisions under Internal Revenue Code section 4980H. It is determined once a year, looking backward, and it is not something an employer elects.
Part-time hours count toward the threshold even though part-time employees are never owed an offer of coverage, and separate businesses under common ownership are combined before the count is taken.
Key takeaways
- Measured on the prior calendar year. Status applies for the current year, so it cannot be fixed in the year it bites.
- 30 hours a week, or 130 in a month. That is the full-time test — not 120 hours, which is a different rule.
- Part-time hours convert at 120. Capped at 120 hours per employee per month, then divided by 120.
- Common ownership is combined. Entities related under section 414 are counted as one, then liability is assessed separately for each member.
- Crossing 50 does not mean insuring everyone. It means an offer to at least 95% of full-time employees and their dependents.
How is applicable large employer status determined?
An employer is an ALE for a calendar year if it employed an average of at least 50 full-time employees, including full-time equivalents, on business days during the preceding calendar year. The IRS states the rule plainly: an employer with at least 50 full-time employees, including full-time equivalent employees, on average during the prior year is an ALE for the current calendar year.
What counts as a full-time employee under the ACA?
For any calendar month, a full-time employee is one who has on average at least 30 hours of service per week, or at least 130 hours of service during the calendar month. The monthly figure is not simply 30 multiplied by four — 130 is the standard the regulation sets, and using 120 instead is one of the most common errors we see in employer-run counts.
How do part-time employees affect the count?
They affect the ALE determination but never create an offer obligation. For each month, combine the hours of service of all non-full-time employees, counting no more than 120 hours for any single employee, then divide the total by 120. The result is that month’s full-time equivalents. An employer with 40 full-time staff and enough part-time hours to generate 12 equivalents is an ALE at 52, even though it owes an offer only to the 40.
Who needs to run this calculation
- Count full-time employees for each calendar month — anyone averaging 30 hours of service per week or 130 hours in that month.
- Total the hours of service of all non-full-time employees for that month, counting no more than 120 hours for any one person.
- Divide that total by 120 to get full-time equivalents for the month, then add them to the full-time count.
- Repeat for all twelve months of the prior calendar year, add the twelve monthly totals and divide by 12.
- If the average is 50 or more, you are an ALE for the current year. Fractions are rounded down to the next lowest whole number.
Authoritative references
Authorities used for current calculations
- Determining if an Employer is an Applicable Large Employer — Internal Revenue ServiceSupports: The 50-employee threshold, prior-year averaging, the 130-hour full-time test, the 120-hour FTE conversion, and the seasonal worker exceptionVerified 26 July 2026
Statutes and regulations
- Internal Revenue Code § 4980H, § 4980H — U.S. CodeSupports: Employer shared responsibility provisionsVerified 26 July 2026
- Internal Revenue Code § 414, § 414(b), (c), (m), (o) — U.S. CodeSupports: Employer aggregation rules for controlled and affiliated service groupsVerified 26 July 2026
Explanatory guidance
- Questions and Answers on Employer Shared Responsibility Provisions — Internal Revenue ServiceSupports: The 95% offer threshold and the 30-employee reductionVerified 26 July 2026
Published 26 July 2026. Last reviewed 26 July 2026. Next review on publication of the next IRS indexing adjustment or revised ALE guidance. 4J Insurance is an independent commercial insurance brokerage, powered by PGI, based in Frisco, Texas. This page provides general information about ACA employer compliance. It is not legal advice, tax advice, actuarial advice, or an individualized compliance determination.
The rules that decide the answer
A worked example
An employer runs a distribution operation with 44 full-time employees every month. It also uses part-time staff who collectively work 1,800 hours in a typical month, with no individual exceeding 120 hours.
Full-time equivalents for the month: 1,800 ÷ 120 = 15. Monthly total: 44 + 15 = 59. Repeated across twelve months and averaged, the employer is at 59 — comfortably an ALE, despite believing it had 44 employees.
The offer obligation still attaches only to the 44 full-time employees and their dependents. The 15 equivalents are a counting construct; they are not people owed coverage.
Common ownership: the count is combined before it is taken
Companies with a common owner, or otherwise related under the rules of Internal Revenue Code § 414, are generally combined and treated as a single employer for determining ALE status. If the combined group clears 50, every member of the group is an ALE member — including the two-person entity that would never have qualified on its own.
Liability is then assessed separately for each member. Aggregation decides whether the rules apply; it does not pool the penalty.
Whether a particular ownership structure creates a controlled or affiliated service group under § 414(b), (c), (m) or (o) is a legal determination that turns on the specific facts. We flag the risk and the structures that commonly trigger it; the conclusion belongs with your counsel or tax adviser.
The seasonal worker exception
An employer is not an ALE despite crossing 50 if two conditions are both met: the workforce exceeded 50 full-time employees, including equivalents, for 120 days or fewer during the calendar year, and the employees in excess of 50 during that period were seasonal workers. Miss either condition and the exception does not apply.
The mistakes that produce a wrong answer
- Counting heads instead of hours of service — the rule is hours-based, not headcount-based
- Using 120 hours per month as the full-time threshold instead of 130
- Omitting part-time hours entirely because part-timers are not owed coverage
- Failing to cap an individual part-time employee at 120 hours in the equivalent calculation
- Running the count on the current year rather than the prior calendar year
- Testing each entity separately when common ownership requires aggregation
- Assuming the seasonal exception applies without checking the 120-day limit
- Rounding the final average up rather than down
What being an ALE actually obligates you to do
An ALE must offer minimum essential coverage that is affordable and provides minimum value to at least 95% of its full-time employees and their dependents, or risk a payment under § 4980H if a full-time employee receives subsidized Marketplace coverage. It must also report annually on Forms 1094-C and 1095-C. ALE status alone creates no penalty — the payment is triggered by the combination of an inadequate offer and an employee receiving a premium tax credit.
What to do next
- Run the twelve-month average now rather than at renewal, using hours of service from payroll rather than headcount from an org chart
- List every entity under common ownership and test them as a group
- If you are within a few employees of 50 in either direction, document the calculation and keep the workpapers
- If you are an ALE, confirm the offer reaches 95% of full-time employees and their dependents, and that it is affordable and minimum value
Related resources
Continue learning
- How to calculate full-time equivalent employees
- ACA affordability and the safe harbors
- ACA employer mandate penalties
- Monthly vs look-back measurement methods
Use a tool
Check your ALE status — free ALE and affordability screening, including commonly owned businesses
Discuss the issue
Request an ACA compliance review — we read your census, offer, contribution structure and filings against what section 4980H requires
Applicable large employer FAQ
How many hours make an employee full-time under the ACA?
An employee is full-time for a calendar month if they average at least 30 hours of service per week, or have at least 130 hours of service during that month. The 130-hour monthly figure is the standard the regulation sets. Using 120 hours as the full-time threshold is a common and consequential error.
Do part-time employees count toward the 50-employee threshold?
Yes for the count, no for the offer. Part-time hours are combined each month, capped at 120 hours per employee, and divided by 120 to produce full-time equivalents that are added to the full-time count. Part-time employees are never owed an offer of coverage under the employer mandate.
Are separate businesses under common ownership combined?
Generally yes. Companies with a common owner or otherwise related under Internal Revenue Code section 414 are combined and treated as a single employer for determining ALE status. If the combined group meets the threshold, every member is an ALE member. Liability is then assessed separately for each member. Whether a specific structure creates a controlled or affiliated service group is a legal determination for your counsel.
Is there an exception for seasonal workers?
Yes, and both conditions must be met. The workforce must have exceeded 50 full-time employees including equivalents for 120 days or fewer during the calendar year, and the employees in excess of 50 during that period must have been seasonal workers. If the excess lasted longer than 120 days, or the excess employees were not seasonal, the exception does not apply.
Does being an ALE mean I have to insure every employee?
No. An ALE must offer minimum essential coverage that is affordable and provides minimum value to at least 95% of its full-time employees and their dependents. Part-time employees are not included in that obligation, and the 95% threshold leaves limited room for administrative gaps.
Do Texas school districts and public entities have to apply these rules?
Governmental employers are subject to the ACA employer shared responsibility provisions. Governmental status matters for other benefit rules, notably ERISA, but it does not exempt a public employer from ALE determination, the offer requirement or Forms 1094-C and 1095-C reporting.
Crossing 50 is a calculation, not a feeling
Run your own numbers, then have someone read the result against your actual offer and contribution structure.