Introduction
If you run a business in Bucks or Montgomery County and you're inching toward 50 employees, you've probably asked yourself: does the ACA actually require me to offer health insurance now?
Many local business owners struggle with counting full-time equivalents correctly, understanding affordability rules, and figuring out what happens if they get it wrong.
Those aren't small questions. IRS penalties under the employer mandate run thousands of dollars per full-time employee each year, and miscounting your workforce can mean the difference between voluntary coverage and a federal mandate.
This guide breaks down exactly who the ACA employer mandate applies to, what coverage must look like, and how a local advisor like Franklin Benefits Group can help you confirm where your business stands before it becomes a compliance problem.
Key Takeaways
- The ACA employer mandate only applies to Applicable Large Employers (ALEs) with 50+ full-time equivalent employees
- Coverage must be affordable and meet minimum value standards (the plan pays at least 60% of expected costs)
- ALEs must offer coverage to 95% of full-time employees and their children through age 26
- Non-compliance penalties are calculated per full-time employee after excluding the first 30 employees
- Employers under 50 FTEs aren't required to offer coverage but may qualify for small-business tax credits
What Is the ACA Employer Mandate?
The employer mandate, technically called the employer shared responsibility provisions, comes from the Affordable Care Act, signed into law in March 2010. The provisions requiring large employers to offer coverage didn't kick in immediately, though. They were phased in starting in 2015, giving businesses time to adjust.
The purpose is straightforward: push large employers to offer health coverage or make a payment to the IRS instead. For companies that qualify, this is a legal requirement with real financial consequences.
Here's the part that trips people up: this requirement only applies to Applicable Large Employers, not every business in America. If your company has fewer than 50 full-time equivalent employees, the ACA employer mandate simply doesn't apply to you. You can offer coverage voluntarily, but nothing forces your hand.
So how does the ACA define "full-time" for this purpose? An employee counts as full-time if they average:
- 30 or more hours of service per week, or
- 130 or more hours of service per month
Don't confuse this with the individual mandate. That penalty (the one that used to fine people for not carrying insurance) was reduced to $0 starting in 2019. But that only affected individuals. According to current IRS guidance on employer shared responsibility provisions, the employer mandate remains fully active, with penalty amounts still adjusted annually for inflation.
Are You an Applicable Large Employer (ALE)?
Determining ALE status comes down to one number: your average full-time equivalent employee count for the prior calendar year. Hit 50, and you're an ALE for the current year, even if your headcount dips below that threshold later.
Calculating Full-Time Equivalent (FTE) Employees
The formula looks like this:
FTEs = Full-time employees + (Total monthly hours worked by part-time employees ÷ 120)
For example, say your company has:
- 42 full-time employees (30+ hours/week)
- 15 part-time employees who each work about 20 hours/week (roughly 80 hours/month)
Your part-time hour total is 15 × 80 = 1,200 hours per month. Divide that by 120, and you get 10 additional FTEs. Add those to your 42 full-time employees, and your total workforce is 52 FTEs, which puts you over the ALE threshold.
You'd repeat this calculation for each month, then average the 12 monthly totals to determine your ALE status for the following year. Businesses hovering near 50 should run this math every year, not just once. Seasonal hiring, layoffs, or a single new part-time shift can push you across the line without you noticing.
Aggregation Rules and Special Cases
Own multiple businesses, or share ownership with related entities? The IRS doesn't let you split your workforce across companies to dodge ALE status.
- Common ownership: Related entities under common control (IRC Section 414) must combine FTE counts. If the group hits 50, every member is an ALE.
- Seasonal workers: Employees working 120 days or fewer generally don't count, if you only exceed 50 FTEs during that seasonal window.
- IRS estimator: The Taxpayer Advocate Service tool can help with rough math, but it doesn't report to the IRS or catch aggregation issues.
A restaurant group with three locations under one owner, or a medical practice that just acquired a smaller office, can miscalculate ALE status by forgetting to combine related entities.
Working with a licensed benefits advisor like Franklin Benefits Group to confirm your status before it becomes an IRS problem is usually far cheaper than fixing a mistake after the fact.
What Coverage Must ALEs Provide?
Once you're confirmed as an ALE, the rules about what you offer get specific fast.
The 95% offer rule. ALEs must offer minimum essential coverage to at least 95% of full-time employees, and must also offer coverage to those employees' dependent children up to age 26. Spouses are left out — the mandate doesn't require coverage for an employee's spouse, only their children.
Affordability standards. Coverage counts as "affordable" if the employee's required contribution stays under a set percentage of household income. For plan years beginning in 2026, that threshold is 9.96%, according to Revenue Procedure 2025-25.
Since employers rarely know an employee's actual household income, the IRS allows three safe harbor methods instead:
- W-2 wages safe harbor — based on Box 1 wages for the year
- Rate of pay safe harbor — based on hourly rate or monthly salary
- Federal poverty line safe harbor — based on a set dollar figure tied to the FPL
Minimum value standard. Beyond affordability, your plan needs to cover at least 60% of the total allowed cost of covered benefits. A plan that's cheap for employees but only covers a fraction of actual medical costs won't satisfy this requirement.
One more detail that catches new ALEs off guard: you have a maximum 90-day waiting period before offering coverage to newly eligible full-time hires. You can't stretch onboarding out to delay benefits eligibility indefinitely.
Penalties for Non-Compliance
Miss any of the above, and the IRS has two distinct penalty structures. They are not interchangeable.
Section 4980H(a): No coverage offered at all. This applies when an ALE fails to offer minimum essential coverage to at least 95% of full-time employees. The penalty is calculated per full-time employee, minus the first 30 employees. For calendar year 2026, that penalty runs $3,340 annually per employee, per IRS Revenue Procedure 2025-26.
Section 4980H(b): Coverage offered, but it fails affordability or minimum value. This one only applies to employees who actually receive a premium tax credit because your coverage didn't meet the bar. For 2026, the penalty is $5,010 per affected employee annually, though total liability under this section is capped at what the 4980H(a) penalty would have been.
Both figures adjust every year for inflation, so don't assume 2026 numbers will apply going forward.
How the IRS Notifies You: Letter 226J
If the IRS determines you owe a penalty, you'll receive Letter 226J. It breaks down the proposed payment month by month and specifies which penalty type applies.
- Agree or dispute the assessment in writing
- Receive Letter 227 confirming the IRS outcome
- Request a conference with the IRS Office of Appeals if you still disagree
- Face assessment and a payment demand if you ignore the notice
Recent legislation extended the response window for your first Letter 226J to 90 days, up from the older 30-day standard.
Accurate recordkeeping throughout the year (offer codes, coverage months, employee classifications) is what determines whether you can respond effectively when that letter arrives.
Compliance, Reporting & Options for Every Size Employer
Being an ALE comes with annual paperwork on top of the coverage requirements themselves.
Reporting obligations. ALEs must file Form 1094-C (a transmittal summary) along with a Form 1095-C for every employee who was full-time for at least one month during the year. Self-funded plans — regardless of employer size — also have to file information returns, though smaller self-funded employers use Forms 1094-B/1095-B instead.
If you're under 50 FTEs, you're off the hook for the mandate itself. But you're not without options:
- The Small Business Health Care Tax Credit — available to employers with fewer than 25 FTEs who pay at least 50% of employee premiums through the SHOP Marketplace
- The SHOP Marketplace, generally available to businesses with 1-50 employees, with enrollment year-round rather than a fixed open enrollment window
- ICHRA designs that let employers of any size reimburse individual-market premiums tax-free instead of offering a traditional group plan
Many growing businesses across Bucks and Montgomery Counties choose to offer benefits well before they're legally required to, simply because it helps them compete for talent against larger employers.
Franklin Benefits Group has helped Pennsylvania employers with this work since 2003. Founded by Michael Braun, the firm supports small and mid-sized businesses on ALE status, affordability and minimum-value coverage, and year-end reporting—including through Ease and the HR Toolbox's ACA Reporting tools.
Whether you're comfortably under 50 employees or right at the edge, an annual workforce-data review beats guessing.
Frequently Asked Questions
Are employers required to offer health insurance?
Only Applicable Large Employers with 50 or more full-time equivalent employees face this requirement under the ACA. Smaller businesses can choose to offer coverage voluntarily, but nothing legally obligates them to.
How big does a company have to be to provide benefits?
A company becomes an Applicable Large Employer when its average full-time equivalent (FTE) count reaches 50. FTEs equal full-time employees plus part-time hours divided by 120, measured over the prior calendar year.
What counts as a full-time employee under the ACA?
An employee is full-time under the ACA if they average at least 30 hours of service per week, or 130 hours per month.
What is the penalty for not offering ACA-compliant coverage?
Employers face two IRS penalties: one for offering no coverage (per full-time employee, minus the first 30), and one when coverage fails affordability or minimum value tests (per employee who receives a premium tax credit). Both amounts are adjusted annually.
Do small businesses get tax credits for offering health insurance?
Yes. Employers with fewer than 25 full-time equivalent employees, average annual wages below a set threshold, and who contribute at least 50% toward employee premiums through SHOP may qualify for the Small Business Health Care Tax Credit.
Can I get help determining if my business is an Applicable Large Employer?
Yes. A licensed benefits advisor like Franklin Benefits Group can review your full-time, part-time, and seasonal workforce data to confirm ALE status.
