Health Insurance Concerns Amid ACA Subsidy Changes
On November 1, 2025, in Northglenn, Colorado, residents participated in a public enrollment event for the Affordable Care Act (ACA), sharing their experiences and urging legislators to take action on lowering healthcare costs.
For many Americans purchasing health insurance through the ACA Marketplace, this is the first time in years that they’ll need to carefully track their annual income to avoid hefty federal tax bills. Enhanced subsidies, which have provided relief for many, are set to end at the close of 2025, potentially resulting in increased premiums for millions. This situation brings back what’s known as the subsidy cliff: households earning just $1 over a designated income limit will completely lose their eligibility for subsidies, often referred to as the premium tax credit.
The cutoff points for subsidy eligibility vary by family size. In 2026, for instance, these limits will be $62,600 for a single-person household, $84,600 for a two-person household, and $128,600 for a four-person household.
Over 2 million people currently enrolled in ACA Marketplace plans are near this subsidy cliff. Experts note that those enrolled in the ACA often have fluctuating income levels, making it hard to accurately predict their earnings. Households exceeding these limits may find themselves having to repay federal assistance received for premiums—sums that can reach thousands of dollars—when filing taxes for 2026.
Tommy Lucas, a certified financial planner, expressed concern about the upcoming tax season, suggesting we might hear troubling accounts of individuals facing unexpected tax liabilities due to repayment of credits. The situation has been made more complex by recent legislation that lifted caps on excess subsidy repayments, leading some experts to describe the ACA’s implications as particularly punitive for those who earn just slightly more than the threshold.
Cynthia Cox, the director of the ACA program at KFF, indicated that some households could be responsible for repayments totaling around $10,000, depending on variables like age and family size. For an elderly couple who inadvertently find themselves above the income limit, that number could escalate to as much as $20,000.
Possible Legislative Solutions
There’s a possibility that Congress may extend these enhanced ACA subsidies, potentially averting surprise tax bills for households. While many Democrats support an extension, most Republicans are against it. Nevertheless, there have been discussions about bipartisan consultations, suggesting that some legislative action may be forthcoming.
Still, Cox expressed skepticism about the likelihood of passing measures to assist those affected, sharing her hope that Congress acts favorably.
New Income Guidelines for Subsidies
The subsidy cliff represents a significant policy shift since the introduction of enhanced premium subsidies in 2021 through COVID-19 relief legislation. Households earning more than 400% of the federal poverty level in 2026 will not qualify for premium tax credits and could face the full price of their unsubsidized insurance premiums. This means that a 60-year-old earning $62,000 pays about 10% of their income for insurance, while someone earning $64,000 would see their premium jump dramatically to 23% of their income.
In 2025, approximately 3% of ACA enrollees—roughly 725,000 individuals—had incomes between 400% and 500% of the poverty line, while about 1.8 million others fell between 300% and 400% of that measure. Cox emphasized that those whose income is near these thresholds need to be much more cautious about their earnings.
The Mechanics of ACA Tax Credits
In 2025, about 22 million Americans benefited from premium subsidies. These households can apply for tax credits either as a lump sum or through advance payments when they file taxes. Most individuals opt for the latter, which effectively reduces their upfront premium costs.
The determining factor for these subsidies is something called “modified adjusted gross income” (MAGI). Calculating MAGI can be tricky, as it takes into account a range of factors including not only standard income but also tax-exempt interest and Social Security benefits. Experts suggest individuals should closely monitor their income, particularly those engaged in the ACA, to avoid sudden surprises during tax season.
Some strategies for managing earnings include making contributions to retirement accounts or other investment vehicles that do not count as taxable income. Additionally, those with flexible work schedules may consider reducing hours to stay within the limits.
