Impact of Federal Subsidy Halts on ACA Enrollment and Premiums

Over five million Americans have exited Affordable Care Act (ACA) health insurance plans following the halt of enhanced federal subsidies, leading to increased insurance premium rates. Data from the U.S. Department of Health and Human Services (HHS) indicates that as of 2026, ACA marketplace enrollment has dropped to 19.2 million, down from 24.2 million the previous year.

This enrollment decline aligns with the discontinuation of enhanced premium tax credits, initially introduced during the Covid-19 pandemic. Despite attempts by Democrats to extend these financial aids, the failure to secure an agreement has resulted in significant premium hikes, impacting affordability for many consumers.

The ACA, designed to expand health insurance access since 2010, saw peak enrollments when temporary subsidies lowered coverage costs. However, the removal of these subsidies has reportedly doubled average premium costs, influencing consumers to withdraw from the marketplace. The Trump administration's focus on combating ACA fraud is noted as a factor, though rising costs are deemed by experts as the primary reason for reduced enrollment.

Cynthia Cox, director of KFF's Program on the ACA, points to a 13% enrollment dip due to increased premiums, disproportionately affecting low-income individuals. These higher premiums have prompted some health insurers, including Cigna, to exit specific ACA marketplaces, raising concerns about reduced market competition and stability.

Health policy experts suggest that, while healthier individuals are leaving ACA plans, the marketplaces are currently stable. However, early filings indicate potential premium rises in 2027, which could further decrease enrollment unless legislative actions renew financial support for ACA participants.