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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

Timely insights and analysis from KFF staff

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  • Obamacare: The Metrics In The News Are Mostly Wrong

    From Drew Altman

    In this Policy Insights, Kaiser Family Foundation President and CEO Drew Altman explains how the measures of success for year one of Obamacare used in media coverage and national discussion is the equivalent of judging the local weather from national averages.

  • Health Reform: An Overview Tutorial

    Interactive

    This tutorial was produced for kaiserEDU.org, a Kaiser Family Foundation website that ceased production in September 2013. The kaiserEDU.org tutorials are no longer being updated but have been made available on kff.org due to demand by professors who are using the tutorials in class assignments. You may search for other tutorials to view on kff.org. To download this or other tutorials, visit the tutorials archive page.  Slides are available for download using the "Download Slides" link within the…

  • The Affordable Care Act’s Impact on Medicaid Eligibility, Enrollment, and Benefits for People with Disabilities

    Issue Brief

    Medicaid is an important source of health insurance coverage for people with disabilities. This issue brief explains how Medicaid eligibility and benefits for people with disabilities are affected by the Affordable Care Act (ACA) rules as of 2014. Marketplace rules are discussed to the extent that they relate to Medicaid eligibility determinations for people with disabilities.

  • The Bigger Story, and Agenda, Behind GOP Changes to Obamacare, Medicare and Medicaid

    From Drew Altman

    This column was published as a Wall Street Journal Think Tank column on November 21, 2016. Early media coverage of the Republican health-care agenda has concentrated on plans to repeal and then replace the Affordable Care Act. The larger story is GOP preparations for a health policy trifecta: to fundamentally change the ACA, Medicaid and Medicare–all three of health care’s major programs–and in the process, fundamentally alter the direction of the federal role in health and core elements…

  • Poll: Public Divided on Repealing Obamacare, But Few Want It Repealed Without Replacement Details

    News Release

    As Congress begins to work on repealing and replacing the Affordable Care Act, the latest Kaiser Health Tracking Poll finds that one in five Americans (20%) support repeal alone, while three quarters either oppose repeal altogether (47%) or want to wait to repeal the law until the replacement plan’s details are known (28%). Overall, the poll finds that nearly equal shares say that the next Congress should vote to repeal the law (49%) and that…

  • Major Considerations for Repealing and Replacing the ACA

    Event Date:
    Event

    The Kaiser Family Foundation and the Committee for a Responsible Federal Budget host a public forum to discuss the process and implications of repealing and replacing the Affordable Care Act, including the implications of using the budget reconciliation process to repeal the ACA, and what an ACA replacement could mean for health insurance coverage and costs.

  • What’s at Stake with ACA Repeal?

    Interactive

    This interactive includes a map and tables that highlight the increases in health insurance coverage through Medicaid and the Marketplaces as well as the increased federal funding that resulted from the implementation of the ACA.

  • Media Availability on Senate Health Bill

    Event Date:
    Event

    The Kaiser Family Foundation held a media-only conference call Tuesday, June 27, with key experts to explain the Senate Republican health bill and to answer questions about its implications and the CBO’s scoring of the bill. During the call, Kaiser's experts  answered reporters' questions about the bill’s potential impact and implications, including how premiums, tax credits, and insurer participation in the ACA’s marketplaces could change; how the bill would phase out federal funding for the…