Five Key Facts About the Affordable Care Act’s Enhanced Subsidies and Their Upcoming Expiration
WASHINGTON — As the new year approaches, millions of Americans enrolled in health insurance plans under the Affordable Care Act (ACA) face the prospect of significantly higher premiums if Congress does not act to extend expanded tax credits set to expire soon. The enhanced subsidies, which have kept coverage more affordable for many, were a central issue during the recent 42-day government shutdown and remain unresolved.
Here are five important things to understand about the ACA’s enhanced subsidies and what the looming expiration means for enrollees:
- Premiums Could More Than Double Without Subsidies
Analysis from the Kaiser Family Foundation (KFF) shows that without an extension of the expanded subsidies, average premiums could increase by 114%. For example, a single-person household earning around $25,000 annually (about 1.5 times the federal poverty level) currently pays an estimated out-of-pocket maximum of approximately $100 per year. If subsidies expire, that cost could jump to $1,168 annually. Monthly premiums could rise from under $9 to nearly $98, a tenfold increase.
This dramatic rise underscores the critical role these tax credits play in making health insurance accessible and affordable for millions.
- People Near Retirement Age and Higher Earners Face the Largest Premium Increases
The expiration of the enhanced tax credits will disproportionately impact those with incomes above 400% of the federal poverty level, as they will lose eligibility for subsidies entirely. More than 6.7% of ACA plan enrollees—approximately 1.6 million people—fall into this category and will see substantial premium increases.
Additionally, older adults approaching retirement are significantly affected. The age group with the highest marketplace enrollment is 55 to 64, and KFF research estimates that about half of those losing subsidies are between 50 and 64 years old.
To illustrate, a single individual aged 60 earning slightly above 400% of the poverty level could face an increase of $881 per month in premiums for a benchmark silver plan if subsidies expire, compared to a $110 increase for someone aged 30 with the same income.
- The ACA Marketplace Enrollment Has Grown Sharply Thanks to Subsidies
Currently, approximately 24 million people are enrolled in ACA marketplace plans nationwide, with about 92% utilizing some form of premium tax credits. Since 2020, enrollment has more than doubled, spurred by the American Rescue Plan Act of 2021, which enhanced subsidies and loosened eligibility restrictions, including raising the income cap for subsidy qualification.
For 2025, the federal poverty level for a one-person household is $15,650, with 400% equating to $62,600. These thresholds help determine subsidy eligibility and out-of-pocket cost limits.
- State Enrollment Trends Show Significant Growth in Several Regions
Since 2020, states such as Georgia, Louisiana, Mississippi, Tennessee, Texas, and West Virginia have seen their ACA marketplace enrollee numbers more than triple. Fourteen states have at least doubled enrollment. Only a small number of jurisdictions, including Washington, D.C., have experienced a decline.
These enrollment surges reflect the widespread impact of expanded subsidies in improving health coverage availability.
- Expiration of Subsidies Could Lead to Higher Uninsured Rates and Market Instability
If enhanced subsidies lapse on January 1, 2026, premiums will increase abruptly, potentially pushing many to drop coverage. A KFF survey found that about 25% of enrollees would forgo insurance if their premiums doubled, and roughly one-third would seek less expensive alternatives.
Though Congress could enact a retroactive subsidy extension, doing so becomes increasingly complex the longer the delay lasts, risking further enrollment uncertainty and disruption.
Legislative Outlook
While Republicans have introduced legislation focusing on lowering prescription drug costs and expanding association health plans for small businesses and the self-employed, the current proposals do not address the imminent expiration of ACA tax credits. House Speaker Mike Johnson has expressed concerns about healthcare affordability and quality under the current system but also indicated that bipartisan support for subsidy extensions is unlikely in the short term.
Any comprehensive legislative action regarding ACA premium subsidies is expected to be postponed until after Congress returns from the holiday recess in January 2026. —
For those currently enrolled or considering ACA marketplace plans, it remains essential to stay informed regarding potential changes in premium costs and subsidy availability. Healthcare.gov and state-based marketplaces offer updated information on plan options and pricing.
As the situation develops, the decisions made by lawmakers in the coming weeks will crucially impact the affordability and accessibility of health coverage for millions of Americans in the new year.