You’re trying to run a business, not become an expert in health insurance rules. But when the Affordable Care Act comes up, it can be hard to tell what applies to you and what you need to do about it.
Do you have to offer coverage? How do part-time employees count? And what does “affordable” mean, anyway?
Let’s sort through it. We’ll walk through the 2026 employer requirements, the numbers worth knowing, and the options for smaller businesses.
The Short Version: ACA Employer Requirements in 2026
The ACA employer mandate generally applies if you averaged at least 50 full-time employees, including full-time equivalents, last year. Related businesses may need to be counted together. If you’re an applicable large employer, your coverage offers, affordability, and reporting matter. Below that threshold, the mandate generally doesn’t apply, but some benefit-plan rules still do.
Who Does the ACA Employer Mandate Apply To?
The ACA’s employer mandate applies to Applicable Large Employers, or ALEs. You generally qualify if you averaged 50 or more full-time employees, including full-time equivalents, during the previous calendar year.
That last part is key. You don’t determine your status by counting only the people working full-time today.
Under the ACA:
- Full-time generally means at least 30 hours of service per week or 130 per month. Count paid time off, such as vacation, holidays, and sick leave, not just hours worked.
- Full-time equivalents account for employees who aren’t full-time. For each month, add their hours of service, capped at 120 per employee, and divide by 120.
- Related businesses may need to count their employees together.
Calculate each month’s total, then average those totals over the year. Full-time equivalents help determine whether you’re an ALE. Whether a particular employee needs a coverage offer depends on their full-time status under the ACA measurement method you use, not just whether you call them part-time.
If you’re approaching 50, get help checking the calculation. Related ownership, seasonal worker exceptions, and employee classifications can complicate what looks like simple math.
What Health Coverage Do Applicable Large Employers Need to Offer?
To avoid employer mandate payments, ALEs need to pay attention to three things: who gets an offer, what the plan covers, and what employees pay.
Who gets an offer?
Offer minimum essential coverage to at least 95% of your full-time employees and their dependents to avoid the broad “Penalty A” trigger. For this rule, dependents generally means children under age 26; spouses aren’t included.
That doesn’t mean you have permission to forget the other 5%. An employee left out can still create “Penalty B” exposure if they receive a Marketplace premium tax credit.
What does minimum value mean?
A plan provides minimum value if it’s designed to pay at least 60% of total medical costs for a standard population and includes substantial physician and inpatient hospital coverage.
That doesn’t mean it pays 60% of every employee’s bills. Your broker or carrier can confirm whether your plan qualifies.
What counts as affordable in 2026?
For plan years beginning in 2026, the employee’s required contribution for the lowest-cost self-only option providing minimum value can’t exceed 9.96% of household income. That’s up from 9.02% in 2025, according to IRS Revenue Procedure 2025-25.
Of course, you probably don’t know everyone’s household income. The IRS allows three employer affordability safe harbors:
- Federal poverty line
- W-2 wages
- Rate of pay
The federal poverty line (FPL) safe harbor offers a straightforward benchmark. For a calendar-year plan starting January 1, 2026, using the 2025 guideline for one person in the contiguous states and DC, an employee contribution of $129.89 per month or less stays within that safe harbor.
Different amounts can apply in Alaska, Hawaii, or with other plan-year start dates. Have your benefits advisor confirm the right limit before setting deductions.
What Are the ACA Employer Penalties for 2026?
There are two employer mandate payments. The 2026 amounts come from IRS Revenue Procedure 2025-26.
|
Payment |
What can trigger it? |
2026 annualized amount |
|
Penalty A, the “sledgehammer” |
You fail to offer minimum essential coverage to at least 95% of full-time employees and their dependents, and at least one full-time employee receives a Marketplace premium tax credit. |
$3,340 multiplied by your full-time employee count, minus up to 30 employees. |
|
Penalty B |
You meet the 95% offer threshold, but a full-time employee receives a Marketplace premium tax credit because they had no offer or their coverage was unaffordable or lacked minimum value. |
$5,010 for each affected full-time employee. |
The big difference is who gets counted. Penalty A reaches across your full-time workforce after the reduction. Penalty B counts only the affected employees receiving Marketplace tax credits.
Both are calculated monthly. Penalty B can’t exceed the amount that would apply under Penalty A, and related ALE members share the 30-employee reduction.
For perspective, a standalone ALE with 100 full-time employees that triggers Penalty A throughout 2026 would owe $233,800. If it instead triggers Penalty B for five employees throughout the year, the amount would be $25,050.
These aren’t small paperwork mistakes. Getting your offers and employee contributions right deserves attention before enrollment, not after an IRS letter arrives.
What Are the ACA Employer Reporting Requirements and Deadlines?
ALEs report annually using:
- Form 1094-C: The summary or cover form sent to the IRS.
- Form 1095-C: Employee-level information about coverage offers.
For the 2026 coverage year, reported in 2027, the standard deadlines under current rules are:
- March 2, 2027: Provide employee copies, unless you use the furnish-on-request option.
- March 31, 2027: Electronically file with the IRS.
Electronic filing is generally required at 10 information returns across covered return types, including W-2s, 1099s, and 1095-Cs. Most ALEs should plan to file electronically.
Can you provide employee copies only when requested?
Yes, if you follow the rules. For 2026 forms, post a clear, accessible website notice by March 2, 2027, and keep it available through October 15, 2027. Include an email address, mailing address, and phone number for requesting a copy or asking questions.
Requested copies must be provided by the latter of January 31 of the following year or 30 days after the request.
This doesn’t eliminate IRS filing, and state rules may still require employee copies or separate reporting. Multi-state employers should check those requirements annually.
If this is your first reporting year, start early. You’ll need accurate hours, employee classifications, and coverage records, not just software that produces the forms.
What ACA Rules Apply to Businesses Below the 50-Employee Threshold?
The employer mandate generally doesn’t require non-ALEs to offer coverage or file Forms 1094-C and 1095-C.
But “not an ALE” doesn’t mean “no benefit-plan responsibilities.”
Employers covered by the Fair Labor Standards Act must give new hires a written Marketplace coverage notice within 14 days, even if they don’t offer insurance.
Employers offering coverage must follow applicable plan rules, including ERISA requirements where they apply.
Self-insured coverage, including a typical level-funded arrangement, can create separate reporting responsibilities using Forms 1094-B and 1095-B.
Sponsors of applicable self-insured plans generally owe an annual PCORI fee, reported on Form 720. It’s due July 31 of the year after the plan year ends, adjusted for weekends or holidays.
You also have options for offering benefits.
Small Business Health Care Tax Credit
For 2026, you may qualify if you have fewer than 25 full-time equivalent employees, average annual wages below $68,200, and meet the coverage and contribution requirements.
Generally, you need SHOP coverage and must pay at least 50% of employee-only premiums.
The credit can reach 50% of qualifying employer premium payments, or 35% for eligible tax-exempt employers. It’s generally available for two consecutive tax years and phases down above 10 FTEs or average wages of $34,100.
The credit has its own employee-counting rules, so don’t reuse your ALE calculation without checking.
SHOP Coverage
The Small Business Health Options Program helps eligible small businesses offer group coverage. Use HealthCare.gov to explore options, then enroll through an insurance company or SHOP-registered agent or broker.
Health Reimbursement Arrangements
Eligible small employers without a group health plan can use a QSEHRA to reimburse qualifying medical expenses, including premiums. An ICHRA is another option with different rules.
Reimbursements can be tax-free when the coverage and arrangement requirements are met. Whether an HRA costs less than a group plan depends on your workforce and available coverage.
For more context, see our breakdown of small business benefits costs.
How Do State Health Coverage Mandates Affect Employers?
The federal penalty for individuals without health insurance has been zero since 2019. But that didn’t eliminate the employer mandate.
California, Massachusetts, New Jersey, Rhode Island, Vermont, and Washington, DC have individual coverage mandates. Vermont currently has no financial penalty for going uninsured; the other listed jurisdictions can impose penalties, subject to exemptions.
Individual mandates and employer reporting are separate issues. Check both of these for where your employees live.
Your Next Steps for ACA Employer Compliance
You don’t need to memorize every ACA rule. What you do need to know is whether you’re an ALE, whether your coverage offers qualify, and whether your records and reporting are in order.
If you’re approaching the threshold, check your count now. If you’re already an ALE, review affordability and reporting before they become expensive problems.
If you want to talk through where your business stands, click “Let’s Chat” to connect with the Whirks team.
Frequently Asked Questions About ACA Employer Requirements
When does the employer mandate start applying to my business?
For an existing business, ALE status generally depends on the previous calendar year’s average. If you average at least 50 full-time employees, including equivalents, in 2026, you generally become an ALE for 2027 and report that year’s coverage in early 2028.
New businesses and first-time ALEs should check the special rules before assuming when coverage must start.
Can I avoid the mandate by reducing hours?
Don’t assume fewer hours solves the problem. Part-time hours still count toward ALE status, and employees may remain eligible for coverage under your measurement method.
Cutting hours to interfere with benefit rights can also raise ERISA issues. Talk with your benefits advisor and employment counsel before changing schedules.
Do I have to offer coverage to part-time employees?
Not under the employer mandate. Their hours help determine your ALE status, but the mandate’s coverage requirements concern employees classified as full-time under ACA rules.
What if I receive Letter 226-J?
Letter 226-J means the IRS is proposing an employer mandate payment, not that the amount is automatically correct.
The Employer Reporting Improvement Act provides at least 90 days from the first letter to respond to proposed assessments made in taxable years beginning after December 23, 2024.
Follow the letter’s instructions, respond using Form 14764, and gather supporting records. Get your advisor involved promptly rather than setting it aside.
