Why 3 Million Americans Dropped ACA Coverage in 2026

The Great Contraction: Contextualizing the 2026 Enrollment Drop

Since the COVID-19 pandemic, enrollment in the Affordable Care Act (ACA) individual Marketplaces grew year after year, helped by enhanced federal premium tax credits. In 2026 that trend reversed. According to the Centers for Medicare & Medicaid Services (CMS), about 23 million people selected a plan for 2026 during Open Enrollment, roughly a million fewer than the year before.

Sign-ups overstate coverage, because a plan only takes effect once the first premium is paid. Counting only people who paid, HHS data show effectuated enrollment of 19.2 million in February 2026, down about 2.9 million (13%) from a 2025 high of 22.1 million, as KFF reported.

KFF ties the drop to the expiration of the enhanced premium tax credits at the start of 2026. The Trump administration attributes it to efforts to address fraud. The published data do not split the decline between the two, so this article covers each factor and what is and is not known about it.

1. The Expiration of the Enhanced Subsidy Era

The primary driver of the 2026 enrollment contraction was the scheduled expiration of the enhanced premium subsidies originally enacted under the American Rescue Plan Act (ARPA) of 2021 and subsequently extended through 2025 by the Inflation Reduction Act (IRA). These enhanced subsidies did two things: they eliminated the historical "subsidy cliff", where enrollees earning more than 400% of the Federal Poverty Level (FPL) were completely ineligible for tax credits, and they capped maximum premium contributions for the benchmark Silver plan at 8.5% of a household's adjusted gross income.

When these temporary provisions expired on December 31, 2025, the pre-2021 subsidy rules returned. Savings for 2026 coverage are based on the 2025 poverty guidelines (HealthCare.gov explains the lookback), which are $15,650 for one person and $32,150 for a family of four in the 48 contiguous states and D.C., per the Federal Register notice. This meant that for the 2026 plan year:

• The Return of the 400% FPL Cliff: Single individuals earning more than $62,600 (400% of $15,650) and families of four earning more than $128,600 (400% of $32,150) lost all premium tax credit eligibility.
• Higher Payments Overall: KFF found the average monthly net premium payment rose 58%, from $113 in 2025 to $178 in 2026, and the share of enrollees receiving tax credits fell from 92% to 87%.
• Increased Contributions for Lower Incomes: Enrollees below 150% FPL, who previously enjoyed $0 monthly premiums for benchmark Silver plans, saw their minimum expected contributions rise, introducing modest monthly premiums where there were none.

Many enrollees responded by changing what they bought. KFF found that people shifted toward bronze plans, which have lower premiums and higher deductibles, and that the average deductible rose 37%, from $2,759 to $3,786. See KFF's analysis for the full figures.

2. Federal Anti-Fraud and Eligibility Rules

In 2025 CMS finalized the Marketplace Integrity and Affordability rule. Among other changes, it repealed the monthly special enrollment period for people with incomes at or below 150% of the poverty level, which CMS said "has been exploited to enroll consumers or change their plans without their knowledge." It also tightened income and tax-filing verification for premium tax credits, and it set a $5 monthly premium for some automatically re-enrolled $0-premium enrollees on the federal platform in 2026.

The administration says these anti-fraud efforts account for part of the enrollment decline. The KFF analysis of the HHS data does not report how many enrollments were removed for fraud, so we cannot say how much of the 2.9 million drop this explains.

3. Higher Premium Payments

The third factor is what enrollees actually pay. With the enhanced credits gone, KFF reports that average net premium payments rose 58% in 2026. Insurers also raised their sticker prices: for 2027, insurers have proposed another median increase of 14%, as covered in our guide to proposed 2027 premium increases. Where competition is limited and baseline premiums are high, losing a subsidy and facing a rate increase at the same time hits household budgets hardest.

What This Means for 2027 Enrollees

The contraction of the marketplace does not mean the system is unstable. In fact, insurer participation remains high, and many states have stable choices. However, enrollees planning for the 2027 coverage year should take several key steps:

1. Do Not Rely on Auto-Enrollment: With major subsidy rules reverting and medical inflation driving double-digit rate increases, auto-renewing your plan could expose you to higher out-of-pocket costs. Active comparison is crucial.
2. Compare Silver and Gold Side by Side: In the North Carolina example above, the price gap between Silver ($484.59) and Gold ($495.88) is about $11 per month, while the deductibles are $6,300 and $2,000. For enrollees who do not qualify for Silver cost-sharing reductions (CSRs), the trade-off is a slightly higher premium against a lower deductible. Compare total annual cost (premium x 12 plus expected deductible and copays) for your own situation.
3. Report Life and Income Changes: A drop in income, marriage, or family expansion could bring your household below the 400% FPL cliff, restoring subsidy eligibility. Ensure all marketplace details are updated accurately.

Frequently Asked Questions

1. Why did ACA Marketplace enrollment drop by 3 million in 2026?
   HHS data analyzed by KFF show paid enrollment of 19.2 million in February 2026, down about 2.9 million (13%) from 22.1 million in 2025. KFF links the drop to the expiration of the enhanced premium tax credits at the end of 2025 and the higher premium payments that followed. The Trump administration attributes it to efforts to address fraud. No published figure separates the two effects.
2. What is the "subsidy cliff" and how does it affect me?
   The subsidy cliff means that individuals earning more than 400% of the Federal Poverty Level (about $62,600 for a single person for 2026 coverage) are not eligible for premium tax credits. The enhanced rules that suspended this cliff expired at the end of 2025.
3. What anti-fraud changes did CMS make to the Marketplace?
   CMS's 2025 Marketplace Integrity and Affordability rule repealed the monthly special enrollment period for incomes at or below 150% of the poverty level, tightened income and tax-filing verification for premium tax credits, and let HHS terminate agent and broker agreements under a preponderance-of-the-evidence standard. KFF's analysis does not report how many enrollments were removed for fraud.
4. Why did my ACA premiums go up in 2026?
   KFF found the average monthly net premium payment rose 58%, from $113 in 2025 to $178 in 2026, mainly because the enhanced premium tax credits expired. Many enrollees also shifted to bronze plans, and the average deductible rose 37%, from $2,759 to $3,786.
5. How do Gold and Silver plans compare without a subsidy?
   Without a subsidy you pay the full sticker premium for either tier. In some areas the Gold premium is only slightly higher than Silver, while Gold deductibles and out-of-pocket limits are typically lower. Silver cost-sharing reductions do not apply above 250% FPL. Comparing total annual cost (premium x 12 plus expected deductible and copays) shows how the two tiers differ for your situation.
6. Can I qualify for a subsidy if my income is over 400% FPL?
   Not under the rules in effect since the enhanced credits expired at the end of 2025. Households above 400% of the Federal Poverty Level are not eligible for federal premium tax credits.

Conclusion

The 2026 ACA Marketplace enrollment drop highlights the direct link between federal policy decisions and consumer participation. The removal of enhanced subsidies raised what many enrollees pay, and the administration says its anti-fraud measures also contributed to the decline. For enrollees navigating this environment, comparing plans on total annual cost is one way to manage what you pay.

Consumers facing higher premiums in 2026–2027 should actively explore APTC subsidies available in their state. Start with state-specific affordability guides (for example, health insurance in California, Texas, or Florida) to see APTC income thresholds, benchmark Silver premiums, and CSR-enhanced plan options that can significantly reduce your net monthly cost.

Sources

• KFF: ACA Marketplace Enrollment Is Down By 3 Million After Big Jump in Premium Payments
• KFF: What We Know So Far About 2026 ACA Marketplace Enrollment, Premiums, and Deductibles
• CMS: Marketplace 2026 Open Enrollment Period Report, National Snapshot
• CMS: 2025 Marketplace Integrity and Affordability Final Rule fact sheet
• Federal Register: 2025 HHS Poverty Guidelines and HealthCare.gov: Federal poverty level