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The ACA Marketplace

2025 KFF Marketplace Enrollees Survey

In 2025, about one in three ACA enrollees said they would be “very likely” to look for a lower-premium Marketplace plan If their premium payments doubled.

Cost Concerns and Coverage Changes: A Follow-Up Survey of ACA Marketplace Enrollees

Following the expiration of the enhanced premium tax credits for people with Affordable Care Act (ACA) Marketplace plans, a new KFF follow-up survey of the same Marketplace enrollees KFF surveyed in 2025 finds half (51%) of returning enrollees say their health care costs are “a lot higher” this year compared to last year, including four in 10 who specifically say their premiums are “a lot higher.”

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POLLING

Tracking the Public’s Views on the ACA

While overall opinion of the Affordable Care Act has been more favorable than unfavorable since 2017, there remain deep partisan divides. See how public opinion on the ACA has changed from the inception of the law to the present. This interactive tool highlights key moments when views shifted and trends based on party identification, income, age, gender, and race/ethnicity.
DATA

Marketplace Enrollment is Down in 2026—But All of the Data Isn’t in Yet

ANALYSIS

Higher Premium Payments or Higher Deductibles: The ACA's Tradeoffs

QUIZ

Test Your Knowledge of the Affordable Care Act

ANALYSIS

Competition Increased in Individual Market But Fell in Fully Insured Group Markets

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  • How Might Changes to the ACA Marketplace Impact Enrollees with Mental Health Conditions?

    Issue Brief

    This brief estimates the number of current Marketplace enrollees with a mental health diagnosis to understand what changes in enrollment may mean for access to services. Among the 24.3 million Marketplace enrollees in 2025, over 4.4 million individuals are estimated to have at least one mental health diagnosis on a health care claim.

  • Explaining Cost-Sharing Reductions and Silver Loading in ACA Marketplaces

    Policy Watch

    The House of Representatives recently passed a budget reconciliation bill that would appropriate funding for cost-sharing reductions that insurers are required to provide to low-income enrollees in the Affordable Care Act marketplace. This policy watch explains what these cost-sharing reductions are, how they relate to federal spending, and what effect appropriating funding might have on premiums and the uninsured rate.

  • Pending Changes to Marketplace Plans Could Increase Cost Sharing for Consumers

    Policy Watch

    This brief looks at changes to Marketplace plans recently finalized by the Centers for Medicare and Medicaid Services (CMS) that may incentivize insurers to make their plans less generous. With less generous plans, consumers could face higher out-of-pocket costs, though those who don't qualify for premium tax credits could see lower premiums.

  • KFF Health Tracking Poll: ACA Enhanced Subsidies

    Feature

    KFF's Health Tracking Poll looks at public awareness and support for ACA Marketplace subsidies and finds that most adults are unaware the subsidies are set to expire soon. Three in four say Congress should extend the subsidies and support persists despite hearing counter arguments.