Enrollment Decline in Affordable Care Act (ACA) Marketplaces Highlights Challenges
The Affordable Care Act (ACA) marketplaces have experienced a notable reduction in enrollment numbers, as revealed by federal data released in June 2026. Enrollment decreased from 21.8 million in February 2025 to 19.2 million in February 2026, marking a 12% decline. This is the most substantial drop since the marketplaces' inception in 2014, highlighting significant shifts in healthcare coverage trends.
A major factor behind the enrollment decline is the expiration of intensified premium tax credits. These credits significantly reduced coverage costs from 2021 to 2025 during the COVID-19 pandemic, leading to a surge in enrollment. However, their expiration in late 2025 resulted in average costs for subsidized enrollees increasing by approximately 114%, impacting affordability for many.
Faced with rising costs, many consumers transitioned to plans with higher deductibles. This adjustment resulted in average premium payments increasing by 58% and deductibles rising by 37%. As a consequence, only 83% of those selecting marketplace plans by February 2026 maintained their payments and coverage, a decrease from 91% the previous year, signaling challenges in consumer retention.
The federal government noted that administrative cancellations were partly due to incorrect enrollments. These issues stemmed from subsidies rendering some plans free, necessitating oversight by the Centers for Medicare & Medicaid Services (CMS) to address unauthorized enrollments and plan changes.
Market trends reveal state-by-state variations, with states operating their own exchanges experiencing smaller decreases in enrollment compared to those using the federal HealthCare.gov system. State-run exchanges may have provided additional resources to support consumers in maintaining their coverage, mitigating the impact of subsidy expirations.
Projections suggest a continued enrollment decline, potentially reaching between 16.5 million and 17.5 million by the end of 2026. Insurers are responding by seeking premium increases, proposing an average rise of 14% for 2027, contributing further to the evolving insurance landscape.
Research underscores the benefits of insurance coverage in improving healthcare access, reducing financial strain, and enhancing health outcomes. Conversely, the loss of coverage has been linked to delays in care and increased health risks, as evidenced by past Medicaid disenrollments. The long-term impacts of recent marketplace changes on healthcare services and financial burdens remain to be assessed, but existing studies highlight significant concerns.