Applicable Large Employer Rules: ACA Requirements 2026

TL;DR

An applicable large employer (ALE) is any business that averaged 50 or more full-time employees (including full-time equivalents) during the prior calendar year. ALEs must offer affordable health coverage meeting minimum value to at least 95% of full-time employees or face IRS penalties of $3,340 or $5,010 per employee in 2026. This page covers how to calculate your FTE count, what the penalties look like, which safe harbors prove affordability, and how an ICHRA can satisfy the employer mandate.

Explore how ICHRA works for employers

What Is an Applicable Large Employer?

Under the Affordable Care Act, an applicable large employer is any organization that employed an average of 50 or more full-time employees (including full-time equivalents) during the preceding calendar year. The formal name for the obligation that comes with ALE status is the Employer Shared Responsibility Provision, codified under IRC Section 4980H.

A few things worth noting upfront:

• ALE status is determined using prior-year data. Your 2025 workforce numbers decide whether you are an ALE for 2026.
• The IRS defines a full-time employee as anyone averaging at least 30 hours per week or 130 hours per month.
• Businesses connected through common ownership are evaluated together. Even if each entity has fewer than 50 employees, combined totals can trigger ALE status. Our guide on controlled group rules breaks this down further.

Because ALE status is based on prior-year data, businesses often cross the threshold in IRS records before they are operationally ready to comply. This timing trap catches growing companies off guard, especially those that added seasonal or part-time staff the year before without realizing those hours count toward the calculation.

How to Determine ALE Status

Step-by-step FTE calculation

The applicable large employer rules require you to count two groups every month:

1. Full-time employees: Anyone who worked 30 or more hours per week (or 130+ hours per month) counts as 1.0 FTE.
2. Full-time equivalents from part-time hours: Add up total hours worked by all part-time employees in a month, then divide by 120.

Combine both numbers for each month, then average across all 12 months.

Worked example

Suppose a company has 35 full-time employees year-round and 30 part-time employees who each work 20 hours per week (roughly 87 hours per month).

• Monthly part-time hours: 30 × 87 = 2,610
• Part-time FTEs: 2,610 ÷ 120 = 21.75
• Monthly total: 35 + 21.75 = 56.75
• 12-month average (assuming consistent staffing): 56.75

This employer is an ALE.

The truncation rule

Here is a detail most guides skip: the IRS requires you to truncate (drop the decimal), not round. An average of 49.9 counts as 49, not 50. That fraction makes the difference between being subject to the applicable large employer rules and being free of them. Conversely, 50.1 truncates to 50, which means you are an ALE.

Research from the University of Chicago found that between 28,000 and 50,000 businesses nationwide appear to be reducing their full-time-equivalent headcount to stay below 50 specifically because of the employer mandate. That gives you a sense of how much this threshold matters to growing companies.

What Applicable Large Employer Rules Require

Once classified as an ALE, you must:

1. Offer minimum essential coverage (MEC) to at least 95% of your full-time employees and their dependent children under age 26. The IRS considers MEC to include most employer-sponsored group plans, as well as Individual Coverage HRAs (ICHRAs) when the employee enrolls in qualifying individual coverage.

2. Ensure the coverage is affordable. For plan years beginning in 2026, employer-sponsored coverage meets the affordability standard if the employee’s required contribution for self-only coverage does not exceed 9.96% of household income. This is a notable jump from 9.02% in 2025, giving employers slightly more room. Our 2026 ICHRA affordability guide walks through the math.

3. Provide minimum value. The plan must cover at least 60% of expected health care costs (the actuarial value floor).

4. File IRS Forms 1094-C and 1095-C annually. Every full-time employee must receive a copy of Form 1095-C, whether or not they enrolled in the plan. For the 2025 tax year, employee copies are due by March 2, 2026, and electronic filing with the IRS is due by March 31, 2026. See our 1094-C vs 1095-C reporting guide for filing details.

ALE Penalties for 2026

Penalties under the applicable large employer rules are triggered only when at least one full-time employee receives a premium tax credit (PTC) through the ACA Marketplace. No PTC, no penalty. But if even one employee qualifies, the numbers get serious fast.

Penalty A, Section 4980H(a): failure to offer coverage

If an ALE does not offer MEC to at least 95% of full-time employees (and their dependents), the penalty for 2026 is $3,340 per full-time employee per year, minus the first 30 employees.

Example: An ALE with 200 full-time employees fails to offer coverage, and one employee gets a marketplace subsidy. The penalty calculation: $3,340 × (200 − 30) = $567,800 for the year.

The 30-employee reduction applies once to the entire company, not per location. Multi-site employers sometimes misunderstand this.

Penalty B, Section 4980H(b): unaffordable or insufficient coverage

If the ALE offers coverage to 95% of employees but that coverage fails the affordability or minimum value test, the penalty is $5,010 per affected employee who actually receives a marketplace PTC. The Penalty B amount is capped so it never exceeds what Penalty A would have been.

For a deeper look at how these penalties are assessed and how to avoid them, see our ACA employer penalty guide.

Affordability Safe Harbors

Employers rarely know each employee’s household income, which is what the formal affordability test requires. The IRS provides three safe harbors that let ALEs prove affordability using information they actually have.

Employers can use different safe harbors for different categories of employees, as long as the categories are reasonable and the safe harbor is applied uniformly within each category.

Schedule a demo to see how SimplyHRA handles affordability

Special Situations

Seasonal worker exception

An employer is not considered an ALE if its workforce exceeded 50 full-time employees for 120 days or fewer during the prior calendar year, provided every employee above 50 during that period was a seasonal worker. Four calendar months can substitute for the 120-day count, and neither the days nor months need to be consecutive.

Seasonal worker vs. seasonal employee: a common trap

The terms sound interchangeable but they are not. Under the applicable large employer rules, “seasonal worker” is used to determine whether an employer qualifies for the exception above (the ALE threshold test). “Seasonal employee,” by contrast, relates to measurement-period rules for determining when an employer must offer coverage to a specific individual. Confusing the two can lead HR teams to miscategorize workers and miscalculate obligations. Our article on coordinating benefits with seasonal staff covers the practical implications.

Controlled group aggregation

Under IRS controlled group rules, businesses connected through common ownership (parent-subsidiary, brother-sister, or combined group structures) are treated as a single employer for ALE purposes. A company that looks small in isolation may be an ALE when its affiliated entities are counted together.

New employers

A business that did not exist for the entire prior calendar year uses a “reasonably expected” standard. If you reasonably expect to employ 50 or more full-time employees (including FTEs) on business days during the current calendar year, you are treated as an ALE.

How ICHRA Helps ALEs Stay Compliant

An Individual Coverage HRA is one of the clearest paths for meeting the applicable large employer rules without managing a traditional group health plan. Here is why:

ICHRA counts as minimum essential coverage. When an ALE offers an ICHRA and employees enroll in qualifying individual health insurance, the employer satisfies the MEC requirement. The ALE needs to offer the ICHRA to at least 95% of full-time employees and their dependents under 26.

Affordable ICHRAs automatically meet minimum value. Unlike group plans where you need an actuarial certification, an ICHRA that passes the affordability test is treated as providing minimum value by default.

The affordability test is different from group plans. For ICHRA, affordability is measured by whether the employee’s remaining premium cost (after subtracting the employer’s ICHRA allowance) for the lowest-cost silver plan on the ACA Marketplace in the employee’s area falls below 9.96% of household income for 2026. All three safe harbors (FPL, Rate of Pay, W-2) are available.

No contribution caps, no participation minimums. Employers set the allowance amount, can vary it by employee class, and don’t need to worry about minimum enrollment thresholds that plague small group plans.

Practitioners on Reddit’s r/smallbusiness frequently discuss how ICHRA removes the participation hurdles that make traditional group coverage difficult. Multiple benefit advisory sources note that companies newly qualifying as ALEs, as well as those facing group plan renewal hikes, are increasingly choosing ICHRA as their compliance vehicle.

Schedule a consultation to explore ICHRA for your team

Related Terms

Understanding the applicable large employer rules means knowing the vocabulary around them. Explore these related topics in our benefits glossary:

• MEC (Minimum Essential Coverage)
• FTE (Full-Time Equivalent)
• ICHRA (Individual Coverage HRA)
• QSEHRA (Qualified Small Employer HRA)
• PTC (Premium Tax Credit)
• Form 1095-C
• COBRA
• ERISA

Frequently Asked Questions

How do I know if I’m an applicable large employer?

Add your monthly count of full-time employees (30+ hours/week) to your full-time equivalents (total part-time hours ÷ 120). Average those monthly totals across the prior calendar year. If the result is 50 or above (after truncating any decimal), you are an ALE.

Does the 50-employee threshold include part-time workers?

Part-time workers are not counted individually, but their combined hours are converted into full-time equivalents. Those FTEs are added to your full-time headcount for the threshold calculation.

What triggers ALE penalties?

Penalties are triggered only when at least one full-time employee receives a premium tax credit through the ACA Marketplace. If no employee receives a PTC, no penalty is assessed, even if your coverage has gaps.

Can an ICHRA satisfy the employer mandate for ALEs?

Yes. An ICHRA qualifies as minimum essential coverage when employees enroll in individual health insurance. If the ICHRA allowance makes the lowest-cost silver marketplace plan in the employee’s area affordable (under the 9.96% threshold for 2026), the ICHRA also meets the minimum value requirement automatically.

What is the seasonal worker exception?

If your workforce exceeded 50 full-time employees for 120 days or fewer during the prior year, and every employee above 50 during that window was a seasonal worker, you are not considered an ALE. The 120 days (or four calendar months) do not need to be consecutive.

What’s the difference between seasonal workers and seasonal employees?

“Seasonal worker” applies to the ALE threshold test (whether you are an ALE at all). “Seasonal employee” applies to measurement-period rules for determining when coverage must be offered to a specific person. Mixing up these terms is a common compliance mistake.

Do controlled group rules affect ALE status?

Yes. Businesses under common ownership are aggregated and treated as a single employer. You could have multiple entities, each under 50 employees, and still be an ALE once combined. See our controlled group rules article for details.

What are the 2026 ALE penalty amounts?

Penalty A (failure to offer coverage) is $3,340 per full-time employee, minus the first 30. Penalty B (unaffordable or inadequate coverage) is $5,010 per affected employee who receives a marketplace subsidy. Both represent significant increases from prior years.