ACA Employer Health Insurance Mandate in Maryland

The Affordable Care Act (ACA), enacted in 2010, establishes an employer mandate under 26 U.S.C. § 4980H that requires applicable large employers (ALEs) to offer health insurance coverage to their full-time employees. An applicable large employer is defined as an employer with 50 or more full-time equivalent (FTE) employees during the preceding calendar year. The mandate applies nationwide and applies uniformly in Maryland.

The ACA requires that coverage offered must be "affordable" — meaning the employee's share of the premium for self-only coverage does not exceed 9.12% of the employee's household income (adjusted annually) — and must provide "minimum value," meaning the plan covers at least 60% of the cost of covered services. Employers who fail to meet these requirements face penalties.

The Internal Revenue Service enforces the employer mandate and issues penalties under 26 U.S.C. § 4980H(b). If an employer does not offer coverage to 95% of its full-time employees (and their dependents), the employer faces a penalty of up to $3,860 per employee per year (2024 amounts, adjusted annually for inflation). If an employer offers coverage that is either unaffordable or does not meet minimum value requirements, the penalty is assessed only for employees who received a subsidy in the federal health insurance marketplace.

Employers with fewer than 50 full-time employees are not subject to this mandate, though they may voluntarily offer coverage. The federal baseline applies equally in Maryland; the state has no separate federal preemption or carve-out.

Maryland has no separate state-level employer mandate that differs from or exceeds the federal Affordable Care Act requirement under 26 U.S.C. § 4980H. Maryland follows the federal rule exactly: employers with 50 or more full-time equivalent employees must offer affordable, minimum-value health insurance coverage or face federal penalties.

Maryland does not impose additional state-level penalties, requirements, or standards beyond the federal employer mandate. The state does not require employers with fewer than 50 employees to offer health insurance coverage, nor does it lower the 50-employee threshold. However, Maryland maintains its own health care regulations (Maryland Health-General Article § 3-2A-01 et seq. and related statutes) that govern health insurance plans themselves, including mental health parity requirements, coverage for certain treatments, and insurance market regulations enforced by the Maryland Insurance Commissioner.

Employers in Maryland are not required to enroll employees in any specific plan or carrier; they must simply offer at least one plan that meets the affordability and minimum value standards. Maryland employers can self-insure (if they meet federal requirements) or purchase coverage from insurers regulated by Maryland. The Maryland Department of Insurance oversees plan compliance with state insurance law but does not enforce the federal employer mandate — that responsibility rests with the IRS.

Maryland has not adopted a state-specific employer mandate tax or penalty separate from the federal 26 U.S.C. § 4980H penalty. Therefore, Maryland employers face only the federal penalty structure (up to $3,860 per employee per year). Maryland does not offer tax credits or reductions for employers offering coverage; all such federal tax treatment is governed by federal law alone.

The ACA employer mandate contains several important exceptions and carve-outs that may apply to Maryland employers:

Small employers (49 or fewer FTE employees) are entirely exempt from the mandate. An employer's FTE count is calculated by summing all hours worked by part-time employees and dividing by 2,080 (full-time hours per year), then adding the number of full-time employees. Employers may claim safe harbor relief for fluctuating workforces if their average employee count for the prior year was 50 or more but drops below 50.

Seasonal employees are excluded from the FTE calculation under certain conditions. If an employer's workforce is primarily seasonal (such as agriculture, retail, or tourism), employees hired only during peak seasons may not count toward the 50-employee threshold, provided the employer meets specific requirements under IRS guidance.

Employees working fewer than 30 hours per week on average are not "full-time" for mandate purposes. Employers have discretion in how to measure hours, but must use a reasonable method applied consistently.

Employers are not required to offer coverage to spouses or dependents (only to the employee's spouse and dependents if offered at all). However, if dependent coverage is offered, it must be affordable for the employee to obtain coverage for themselves.

Certain employers are exempt from the mandate entirely: federal, state, and local government employers that are not subject to Internal Revenue Code section 3111(a) (Social Security tax); Indian tribes; certain religious organizations; organizations exempt under 26 U.S.C. § 501(c); and employers with fewer than 50 employees.

The ACA also provides for "safe harbor" affordability calculations. Employers may use IRS-prescribed methods (W-2 income safe harbor, rate-of-pay safe harbor, or federal poverty line safe harbor) to determine affordability rather than relying on actual household income, which simplifies compliance.

Step 1: Document Your Employment Records

Begin by documenting your current workforce and benefit offerings. Maintain detailed records of all employees hired, their start dates, hours worked per week, and whether they are classified as full-time or part-time. Create an FTE calculation spreadsheet to determine whether your employer has reached the 50-employee threshold. Document the effective dates of any health insurance plans you offer, the premium amounts, deductibles, and co-pays. Keep copies of all plan documents, insurance carrier communications, and enrollment documentation. Save all payroll records for at least three years to support your FTE calculation and any penalty defense. If your employer currently does not offer health insurance, document the business reason and date the decision was made.

Step 2: Internal Compliance and Communication Process

Review your employer's current health insurance offering (or lack thereof) against the ACA requirements. If your employer offers coverage, verify that it meets the affordability test (employee premium under 9.12% of household income for self-only coverage) and provides minimum value (covers at least 60% of covered services). If coverage does not meet these standards, notify your benefits administrator and request a plan redesign. If your employer does not offer coverage and has 50+ FTE employees, alert senior management and the legal/HR department immediately. Request a meeting with the benefits broker or insurance advisor to discuss coverage options and timeline. Document all internal communications regarding compliance status and plans to remedy any deficiency.

Step 3: Filing with the Appropriate Agency

The ACA employer mandate is enforced by the Internal Revenue Service (IRS), not by Maryland state agencies. If your employer fails to offer coverage or offers unaffordable coverage, the IRS will typically identify this through employer reporting requirements (Forms 1094-C and 1095-C, which employers must file annually). If you believe your employer is violating the employer mandate, you may file a complaint with the IRS Whistleblower program online at www.irs.gov/about-irs/irs-whistleblower-program or call 1-800-829-0433. However, the IRS does not investigate individual employee complaints for employer mandate violations; instead, the agency uses Form 1094-C and 1095-C data to audit employers. Employees who cannot obtain affordable coverage may seek tax credits and subsidies through the federal health insurance marketplace at www.healthcare.gov. You have 60 days from the date you lose coverage to enroll in marketplace coverage with a special enrollment period. Maryland does not have a separate state agency for employer mandate enforcement.