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Affordable Care Act

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.”

new and noteworthy
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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  • Mapping Premium Variation in the Individual Market

    Issue Brief

    This analysis examines how premiums for individual health insurance differ around the nation, finding that premiums can vary substantially from state to state. The average per-person premium in 2010 ranged in cost from approximately $136 per month in Alabama to more than $400 per month in Vermont and Massachusetts.

  • Which Path for Health-Care Politics in 2015?

    From Drew Altman

    This was published as a Wall Street Journal Think Tank column on January 6, 2015. Yogi Berra said that when you come to a fork in the road, take it. It will be that kind of year for health-care politics. The status quo is not an option.

  • An Introduction to Medicaid and CHIP Eligibility and Enrollment Performance Measures

    Issue Brief

    The Centers for Medicare & Medicaid Services (CMS) recently established 12 new Medicaid and CHIP eligibility and enrollment performance indicators for states to report beginning in October 2013. These indicators provide insight into the performance of new eligibility and enrollment policies established under the Affordable Care Act (ACA). In December 2013, CMS released initial reports for a subset of the indicators. This brief provides an overview of the new performance indicators; the initial data; and the opportunities and challenges associated with reporting, analyzing, and interpreting the data.

  • Implications of Reduced Federal Medicaid Funds: How Could States Fill the Funding Gap?

    Issue Brief

    In this analysis, we present three scenarios of reductions in federal Medicaid spending and examine fiscal implications if states fill these financing gaps to maintain their programs and if all reductions are assumed to be in full effect in FFY 2015 (the most recent year for which Medicaid spending data is available). To fill these gaps in financing and maintain current Medicaid programs, we assume states will increase state spending for Medicaid by increasing state taxes or reducing education spending. This analysis is unlike the CBO estimate, which makes projections and accounts for changes in policy, state responses to make changes to Medicaid programs, and reductions in coverage.

  • Health Insurance Premiums Under the ACA vs. AHCA: County-Level Data

    News Release

    The Kaiser Family Foundation’s interactive map now allows users to compare what consumers in each county would pay in health insurance premiums after tax credits in 2020 under the Affordable Care Act vs. the House GOP replacement plan, the American Health Care Act.

  • Key Questions About Medicaid Block Grants

    News Release

    As policymakers in Washington discuss Affordable Care Act repeal and a possible block grant for Medicaid, a new issue brief from the Kaiser Family Foundation lays out key questions to consider in restructuring federal financing of the nation’s health insurance program for low-income Americans.