Imagine a scenario where millions of Americans lose their health insurance, not because they can't afford it, but because the system itself is pushing them away. This is the stark reality facing the Affordable Care Act (ACA) marketplace today, as the expiration of enhanced premium subsidies threatens to trigger a chain reaction of rising costs and declining enrollment. But here's where it gets controversial: could this be the beginning of a so-called 'death spiral' that unravels the ACA as we know it? And this is the part most people miss: the ripple effects of this crisis won't just impact those losing coverage—they could drive up health insurance costs for everyone else, too.
The situation is dire. With the enhanced premium tax credits expiring at the end of 2025, insurance premiums for the average subsidy recipient skyrocketed from $888 per month in 2025 to a staggering $1,904 in 2026, according to KFF, a nonpartisan health policy research group. This isn't just a number—it's a barrier to access that disproportionately affects young, relatively healthy individuals who may now question whether coverage is worth the cost. Economists warn that if these healthier individuals opt out, the remaining pool of enrollees will skew older and sicker, leading insurers to hike premiums even further to cover the escalating costs of care.
Meredith Rosenthal, chair of the Department of Health Policy and Management at Harvard University's T.H. Chan School of Public Health, puts it bluntly: 'If these [relatively young, healthy] individuals exit the risk pool, the average cost of care will increase, causing premiums to rise further.' This self-reinforcing cycle is what experts call a 'death spiral'—a term that sends shivers down the spines of policymakers and consumers alike.
The numbers are alarming. The Urban Institute and The Commonwealth Fund estimate that 7.3 million people will exit the ACA marketplace in 2026 due to the loss of enhanced subsidies. Of those, approximately 5 million will likely go uninsured rather than seek alternative coverage. Young adults, particularly those aged 19 to 34, are expected to bear the brunt of this shift, accounting for nearly half of the anticipated increase in uninsured individuals. In contrast, only about 500,000 uninsured individuals will be aged 55 to 64, according to Jessica Banthin, a senior fellow at the Urban Institute.
But here's the kicker: insurers themselves are already reacting to this riskier pool of consumers. KFF reports that gross premiums for 2026 increased by an estimated 26% on average, with 4 percentage points of that hike directly attributed to the expectation that healthier individuals will drop their coverage. The remaining increase stems from other cost drivers, such as expensive specialty drugs, rising labor costs, and consolidation among medical providers.
Despite these grim projections, some experts argue that fears of a death spiral may be overblown. Michael Gusmano, a professor of health policy at Lehigh University, suggests that while premium increases are likely, the standard premium tax credits—which cap out-of-pocket expenses as a percentage of income—should act as a safeguard. 'The loss of people from the overall pool will lead to price increases, but the tax credit structure should prevent a full-blown spiral,' he explains.
However, not everyone is convinced. Gerard Anderson, a professor of health policy and management at the Johns Hopkins Bloomberg School of Public Health, warns, 'The more money you take away from the subsidies, the greater the prospect of a death spiral becomes.' And this is where the debate heats up: what if the subsidy structure itself is altered? Republican lawmakers and former President Donald Trump have proposed converting subsidies into fixed-dollar payments, a move that could shift the burden of premium increases entirely onto individuals, making a death spiral far more likely.
As we await clearer data this summer on who has dropped ACA coverage and why, one thing is certain: the stakes couldn't be higher. Is the ACA marketplace on the brink of collapse, or can it weather this storm? What do you think? Are the warnings of a death spiral justified, or is there a silver lining we're missing? Share your thoughts in the comments—this conversation is too important to ignore.
