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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.”

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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

Timely insights and analysis from KFF staff

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  • Designing a Marketplace that Works: Steps to Affordable Coverage

    Event Date:
    Event

    The Affordable Care Act enacted in March 2010 calls for the establishment of state health insurance exchanges — marketplaces through which individuals and small businesses can purchase affordable insurance. These exchanges must begin operation by January 1, 2014.

  • Medicaid’s Role for Hispanic Americans

    Fact Sheet

    This fact sheet examines Medicaid's role for Hispanic Americans. It includes data on Medicaid's coverage of Hispanic Americans and the program's impact on their access to care, as well as the impacts of the recent recession and the coming expansion of Medicaid under health reform on enrollment in Medicaid among Hispanic Americans.

  • What’s in There? The New Health Reform Law and Private Insurance

    Event Date:
    Event

    This briefing focuses on how the reform law affects access to private coverage, including the new federal high-risk pools, tax credits for small businesses, health insurance exchanges, the individual mandate and employer obligations. This briefing, cosponsored by the Alliance for Health Reform and the Kaiser Family Foundation, explored these and other issues.

  • Coverage of Preventive Services for Adults in Medicaid

    Issue Brief

    This brief highlights data from a survey of coverage of 42 recommended preventive services for adults in Medicaid fee-for-service programs as of October 2010. Medicaid programs must cover preventive services for children as part of the Early Periodic Screening, Diagnosis and Treatment (EPSDT) benefit, but generally are not required to cover such services for adults.

  • Status of State Medicaid Expansion Decisions

    Interactive

    This page displays an interactive map of the current status of state decisions on the Affordable Care Act's Medicaid expansion. Additional Medicaid expansion resources are listed (with links) below the map.