What is an applicable large employer (ALE)?

The legal definition

The rule is in Internal Revenue Code section 4980H(c)(2) and Treasury Regulation 54.4980H-2. An employer is an ALE for a calendar year if it employed an average of at least 50 full-time employees, counting full-time equivalents, on business days during the preceding calendar year. Your 2026 status depends on your 2025 headcount, and your 2027 status on 2026.

How to count full-time equivalents

1. Count full-time employees each month: 30 or more hours a week, or 130 hours a month.
2. Add part-time hours for the month (at most 120 per person) and divide by 120 to get full-time equivalents. The ALE calculator does the math.
3. Add full-time and FTE counts for each month, then average the 12 monthly totals over the prior calendar year. Round the average down to a whole number. 50 or more makes you an ALE for the current year.
4. Related companies under common ownership are counted together.

Hours of service include paid time off (vacation, holidays, sick leave, paid leave), not only hours worked. Contractors who are truly independent don't count. Misclassified contractors do, which is one more reason to get worker classification right.

Special rules: groups of companies, new companies, seasonal staff

• Common ownership. Companies in the same controlled group or affiliated service group under IRC section 414(b), (c), (m) or (o) are combined to decide ALE status. For example, two companies each with 30 full-time employees form an ALE together if their ownership meets the controlled-group rules; a shared minority investor alone does not establish that result. Penalties are then calculated for each company separately, and the 30-employee reduction is split among them.
• New companies. A company that didn't exist on any business day of the prior year is an ALE in its first year if it reasonably expects to employ, and actually does employ, an average of 50 full-time employees including FTEs that year.
• Seasonal worker exception. You are not an ALE if you went over 50 for 120 days or fewer in the year and the employees above 50 during that period were seasonal workers.
• Employees with other coverage still count. Employees on Medicare, Medicaid or a spouse's plan count toward the 50, and full-time employees count for the A penalty even if they waive. Employees with qualifying TRICARE or VA coverage are excluded from the ALE size determination for those months, but not automatically from all obligations once the employer is an ALE.
• Owners. Sole proprietors, partners and S corporation shareholders who own more than 2% are not employees for ALE counting. C corporation owners on payroll are.
• Variable-hour and new employees. ALEs can use a look-back measurement period of 3 to 12 months to decide who is full-time, and new full-time hires can be in a limited non-assessment period for up to three full calendar months before an offer is due.

What ALEs must do, and the two penalties

• Offer coverage to at least 95% of full-time employees and their dependent children, or risk the "A" penalty: $3,340 per full-time employee in 2026, minus the first 30. It applies when at least one full-time employee gets a marketplace premium tax credit.
• Make it affordable (employee cost for self-only coverage no more than 9.96% of household income in 2026) and minimum value (covers at least 60% of expected allowed costs for a standard population and covers substantial inpatient and physician services), or risk the "B" penalty: $5,010 for each full-time employee who gets a marketplace subsidy. The B penalty can never exceed what the A penalty would have been.
• File Forms 1094-C and 1095-C each year.

Because employers rarely know household income, the regulations give three affordability safe harbors: Form W-2 wages, rate of pay, and the federal poverty line. For calendar-year 2026 plans, keeping the employee's self-only cost at or below $129.89 a month on the cheapest minimum-value option passes the poverty-line safe harbor for everyone in the mainland U.S. Our ACA affordability calculator runs the other two.

Reporting: Forms 1094-C and 1095-C

An ALE generally files Form 1094-C and Forms 1095-C reporting offers by calendar month, even if its plan renews mid-year. Under recurring filing rules, 2026 returns are due March 1, 2027 on paper because February 28 is Sunday, or March 31 electronically. The electronic filing threshold is generally 10 information returns aggregated across types, including W-2s. Check the final 2026 instructions for applicable relief. Furnishing to employees is a separate obligation: an alternative website-notice and on-request method is available under current IRS guidance when its conditions are met; it does not remove IRS filing duties.

Errors cost money separately from the mandate. For returns due in 2027, the general penalty for failing to file a correct information return is $340 per return, and the same applies to each statement not furnished correctly to an employee (Rev. Proc. 2025-32). The IRS uses the 1095-C data and employees' tax returns to issue Letter 226-J, its proposed penalty notice. Follow the response date in the notice. For applicable assessments, the law now gives at least 90 days to respond before the IRS makes the assessment; do not reuse an older 30-day checklist.

Keep records that explain each month: paid hours, eligibility dates, offers, waivers, employee contributions and any safe harbor used. A waiver documents an offer, not affordability. A payroll report showing 50 names does not establish that the prior-year average was 50, and a year-end headcount below 50 does not reverse an ALE determination already in effect. I would reconcile payroll and benefits records before forms are produced, especially for acquisitions, leaves and employees changing hours.

The stated information-return penalty is not an automatic invoice for every mistake. Correction timing, reasonable-cause relief, annual caps and intentional-disregard rules affect the result. Use the final instructions for the reporting year and keep evidence of timely correction. Calendar-year 2026 affordability uses 9.96%; a non-calendar plan that began in 2025 uses the applicable 2025 plan-year percentage until renewal.

How to prepare for crossing 50, step by step

1. Track hours monthly from about 35 people Count full-time employees and part-time hours each month. Include paid leave. Run the ALE calculator each quarter.
2. Check common ownership List every company the founders or investors control. Ask counsel whether any form a controlled group with yours.
3. Decide how you'll measure full-time status Pick the monthly method or a look-back measurement period for variable-hour staff before the ALE year starts.
4. Make sure the plan is minimum value and affordable Confirm minimum value with your carrier or plan administrator. Set the employee's self-only cost under one of the affordability safe harbors.
5. Offer coverage to 95% or more, and to children Document every offer and every waiver. Dependents means children up to age 26; spouses are not required.
6. Set up 1095-C reporting Your payroll provider, benefits platform or plan administrator usually produces the forms. Confirm who owns it before January.

Growing past 50

At Prescience, we design and run your company's health plan, including compliance. Before an ALE year starts, I would still assign responsibility for the employee census, measurement method and IRS filing, and verify the selected plan's minimum value and affordability using its actual terms.

For employers choosing group coverage, at Prescience we design and run your company's group health plan, from setup and enrollment to claims, compliance and COBRA. What your team gets:

• An effective $0 deductible, so the plan helps from the first visit.
• Simple copays shown before a visit, capped by a low out-of-pocket maximum.
• A broad national PPO network, plus providers we contract with directly.
• 24/7 physician-led care navigation: a care team that finds the right provider, books appointments and explains costs up front.

What your company gets: one monthly cost set in your quote, usually 10–20% below comparable fully insured coverage and fixed before the plan starts, with no admin fees. You keep your payroll provider, and the plan can start mid-year.