ACA enrollment drops by 4.6 million as older adults face steep premium hikes

A sharp contraction before open enrollment

More than 4.6 million fewer Americans were enrolled in Affordable Care Act (ACA) marketplace plans as of June 2026 compared to the same period a year earlier, according to findings highlighted by the [Medicare Rights Center] and [KFF]. The steep drop arrives just as the next open enrollment window prepares to launch on November 1, presenting prospective enrollees with a far more expensive coverage landscape.

The decline follows the expiration of federal enhanced premium tax credits, which had previously lowered monthly insurance bills for millions of low- and middle-income households [Medicare Rights Center]. With those financial backstops gone, health policy analysts warn that older adults who have not yet reached Medicare eligibility are experiencing some of the sharpest cost increases in the individual market.

The expiration of enhanced tax credits

The current affordability crunch stems from the sunset of enhanced subsidies originally established during the COVID-19 pandemic [Medicare Rights Center]. Congress chose not to extend the enhanced premium tax credits late last year, allowing the expanded financial assistance to lapse at the close of 2025 [Medicare Rights Center].

Before the expiration, [KFF] researchers estimated that without the enhanced credits, more than 22 million marketplace enrollees would face premium jumps averaging 75 percent in 2026 [Medicare Rights Center]. In rural regions, where insurer competition is often sparse and medical delivery costs run higher, baseline projections pointed to average premium spikes of roughly 90 percent [Medicare Rights Center].

These subsidy rollbacks arrived alongside broader underlying rate hikes across individual marketplace plans, magnifying the out-of-pocket change that consumers see on their monthly billing statements [Medicare Rights Center]. The resulting monthly payment shocks appear to have prompted millions of individuals to drop or forgo marketplace coverage entirely over the first half of the year [Medicare Rights Center].

Why older adults carry the heaviest burden

While rising premiums affect consumers across all age groups, adults between the ages of 50 and 64 face unique financial vulnerability in the individual market [Medicare Rights Center]. Under ACA rating rules, insurers are permitted to charge older policyholders up to three times more for standard premiums than younger adults based on age-related risk.

When the enhanced premium tax credits were active, they capped the percentage of household income that enrollees were required to pay for benchmark silver plans, shielding older consumers from the full brunt of age-rated pricing [Medicare Rights Center]. Without those protections, individuals in their 50s and early 60s who earn moderate incomes—often living on fixed earnings or bridging the gap between retirement and Medicare qualification at age 65—bear the steepest dollar-for-dollar increases [Medicare Rights Center].

Both [KFF] and [AARP] previously projected that this late-middle-age demographic would experience the most severe disruptions from the subsidy expiration [Medicare Rights Center]. For individuals managing chronic conditions like hypertension, arthritis, or diabetes, losing coverage or switching to a catastrophic, high-deductible plan can directly impede access to routine preventive care and daily maintenance medications.

Navigating the upcoming enrollment window

With open enrollment opening on November 1, returning and prospective marketplace enrollees must carefully review their options rather than allowing plans to automatically renew [Medicare Rights Center]. Even with standard premium subsidies still in effect, plan structures, deductible amounts, and carrier participation often shift from year to year.

Consumers preparing for the enrollment period should verify whether their current doctors, specialists, and health systems remain in-network for 2027 plan year offerings. Formularies also require scrutiny to ensure that essential prescription drugs remain covered at affordable copayment tiers. For households navigating coverage decisions between ages 50 and 64, weighing the trade-offs between monthly premiums, annual deductibles, and total out-of-pocket maximums will be critical to maintaining stable medical care over the coming year.