A federal crackdown on Affordable Care Act (ACA) enrollments is landing just as a more expensive individual insurance market pushes more Americans toward coverage through work.
The Centers for Medicare & Medicaid Services canceled about 315,000 Marketplace enrollments covering more than 760,000 people on August 31 after determining they were unauthorized. Its latest anti-fraud measures also freeze new agents and brokers from entering the federally facilitated Marketplace until February 1, 2027.
The enforcement action is separate from the affordability squeeze already reshaping the ACA market, but the effects are converging. Marketplace enrollment fell 13% from its 2025 peak to 19.2 million people by February after enhanced premium tax credits expired.
For employers, the bigger issue is where those people go next. Urban Institute modeling estimated that 3.2 million more people would move into employer-sponsored insurance in 2026 than if the enhanced subsidies had remained in place.
That pressure is likely to be strongest in workforces where access to group coverage is already uneven. Among employers offering health benefits, 80% of workers are eligible for their company plan, according to KFF's 2025 Employer Health Benefits Survey. The rate falls to 67% at firms with large numbers of lower-wage workers and to 53% in retail. Just 27% of large firms offering health coverage make it available to part-time employees.
The ACA generally treats employees averaging at least 30 hours a week as full time for employer shared-responsibility purposes, meaning any broader expansion of eligibility would often be a benefits and workforce decision rather than a new federal requirement.
That is already changing benefits conversations at employers whose workers previously relied on the Marketplace. Companies with narrower eligibility rules may face more pressure to revisit who can join the group plan, how much employees contribute and whether current plan designs still fit the workforce.
The latest CMS move also tightens Marketplace distribution. Agents and brokers without a 2026 Exchange Agreement would miss the entire 2027 federal open enrollment period unless the moratorium is changed or lifted.
That matters because agents and brokers handled 76% of the 10.8 million active HealthCare.gov plan selections during 2026 open enrollment.
Morningstar analyst Julie Utterback said the freeze “may negatively affect enrollment and potentially margins related to higher risk pool in a market that is already contracting” as enhanced subsidies expire.
The National Association of Benefits and Insurance Professionals has pushed for more targeted enforcement. President Mychal Walker said a blanket moratorium “would punish legitimate professionals instead of targeting the bad actors responsible for fraud.”
The pressure is also showing up among consumers who stay in the Marketplace.
Bronze plans accounted for 40% of 2026 selections, up from 30% a year earlier, while average deductibles climbed 37% to a record $3,786, according to KFF's analysis of 2026 Marketplace coverage.
That leaves more workers carrying higher out-of-pocket exposure even when they remain insured, strengthening the case for accident, critical illness and hospital indemnity coverage where those benefits are available through work.
It also broadens the relevance of supplemental benefits alongside high-deductible coverage, particularly for employers whose workers are increasingly caught between more expensive individual coverage and limited access to the core group plan.
