If you're an employer, you've probably asked this question. The short answer: no federal law requires every company to offer health benefits. The real answer is more complicated, especially under the Affordable Care Act (ACA). For many businesses, offering health coverage goes from a perk to a legal requirement based on size and structure. Getting this right matters for compliance and for your team.
The ACA Employer Mandate
The centerpiece of mandatory healthcare benefits is the ACA's "employer shared responsibility" rule, better known as the employer mandate. It applies to Applicable Large Employers (ALEs), companies with 50 or more full-time equivalent employees (FTEs) in the prior year. Full-time means 30 or more hours of service a week; part-time hours are combined into FTEs for the count, and independent contractors and other non-employees are excluded. If you're an ALE, you must offer affordable, minimum-value coverage to full-time employees or risk IRS penalties.
What the ACA requires of ALEs
The coverage must meet two tests, and ALEs also have to report:
- Affordability: For 2026, the employee's share of the self-only premium can't exceed 9.96% of household income. Employers usually check this with one of three IRS safe harbors.
- Minimum Value: The plan must cover at least 60% of total allowed costs, including substantial coverage for doctor visits and hospital stays.
- Reporting: ALEs file Forms 1094-C and 1095-C with the IRS each year and give copies to employees.
State rules add another layer
State rules add a second layer, but they mostly work differently from the federal mandate. Hawaii's Prepaid Health Care Act, on the books since 1974, is the clearest state employer mandate: private employers must provide coverage to employees who work 20 or more hours a week for four consecutive weeks. Massachusetts, California, New Jersey, Rhode Island, Vermont, and Washington, D.C. impose individual mandates instead, which require residents to carry coverage rather than employers to offer it. Check both federal and state rules.
What happens if you don't comply?
ALEs that fail to offer compliant coverage face two main penalties:
- Penalty A (no-offer penalty): If you don't offer coverage to at least 95% of full-time employees and one employee gets a premium tax credit through a Marketplace, you pay $3,340 per full-time employee (minus the first 30) for 2026.
- Penalty B (inadequate-offer penalty): If you offer coverage but it's unaffordable or doesn't meet minimum value, and an employee gets a credit, you pay $5,010 per employee who gets the credit for 2026.
What if you're not subject to a mandate?
Smaller employers, those under 50 FTEs, aren't required to offer health benefits. But it's still a smart move: good benefits help you attract and keep talent, boost morale, and build a healthier, more productive workforce. WellthCare offers a zero-net-cost way to add immediate value: employees earn store dollars and automatic retirement contributions for verified preventive care, with no new employer out-of-pocket cost. Innovative options like WellthCare show where things are heading. By adding a zero-cost layer on top of existing plans, they give employees immediate value, like $0 copay preventive care and earned rewards, while gathering data to make smarter benefits choices. That data can even support a shift to self-funded models like WellthCare Complete™ when it makes sense.
Who the employer mandate leaves out
The employer mandate sets a floor, and the floor is low. It requires an offer of coverage only to full-time employees, those averaging 30 or more hours a week. Part-time employees and independent contractors sit outside the offer requirement, so a company can be fully compliant while a large share of its workforce still has no employer coverage. Those gaps concentrate in hourly-heavy industries such as retail, hospitality, and staffing. For employers, that gap is a retention and health-cost problem. A zero-net-cost layer like WellthCare can extend $0 copay preventive care and earned rewards to those workers with no new employer out-of-pocket cost.
Best practices for every employer
- Know your headcount. Track hours to determine FTE counts and full-time status under ACA rules.
- Document everything. Keep records of offers, plan details, and affordability calculations.
- Stay current. ACA rules and state laws change. Work with a broker, advisor, or attorney.
- Think of benefits as an investment. Even when optional, a strategy that emphasizes preventive care and financial wellness can cut long-term costs and give you a competitive edge.
Healthcare benefits aren't universally mandatory. For mid-size and large companies, the ACA effectively requires them. For everyone else, a thoughtful, compliant strategy is a direct investment in your people and your business's future.