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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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  • Compare Proposals to Replace The Affordable Care Act

    Interactive

    President Donald Trump and Republicans in Congress have committed to repealing and replacing the Affordable Care Act (ACA). How do their replacement proposals compare to the ACA? How do they compare to each other? Includes the Graham-Cassidy-Heller-Johnson amendment (introduced 9/13/2017) as well as other proposals from key members of Congress.

  • How Single Payer Helps Republicans Change the Subject

    From Drew Altman

    In this Axios column, Drew Altman analyzes the political pros and cons of single payer for Democrats and whether it will shift the focus from the Republicans' failed effort to repeal and replace  the Affordable Care Act to the Democrats new sweeping plan.

  • Medicaid: What We Learned From the Recent Debate and What to Watch for in September 2017

    Issue Brief

    The inclusion of major Medicaid changes in both the American Health Care Act (AHCA) that passed in the House and the Better Care Reconciliation Act (BCRA) considered in the Senate revealed that is hard to gain consensus on significant cuts and reforms to Medicaid. Medicaid has broad general support and intense support from special populations served by the program. In addition, proposed changes would have different implications across states due to significant program variation across states, including implementation of the ACA Medicaid expansion as well as other health status, demographic and state fiscal circumstances.

  • How to Keep ACA Stabilization Narrow

    From Drew Altman

    In this column for Axios, Drew Altman discusses the main challenges for members and media coverage as members take up the issue of stabilization of the Affordable Care Act.

  • Data Note: Strongly Held Views on the ACA

    Feature

    Since the passage of the Affordable Care Act in 2010, Kaiser Family Foundation polling has found the public divided in their overall views of the law. At the same time, an intensity gap in opinion has existed since 2010, with the share of the public holding strongly unfavorable views of the law outnumbering the share with strongly favorable views. A new analysis of Kaiser Family Foundation polling data finds that intensity gap began to close in spring 2017. The share with a “very favorable” view is now roughly equal to the share with a “very unfavorable” view.

  • Proposed Medicaid Section 1115 Waivers in Maine and Wisconsin

    Issue Brief

    While the future of legislation to repeal and replace the Affordable Care Act (ACA) and make fundamental changes to the structure and funding of the Medicaid program is uncertain, states and the Administration may achieve major changes to Medicaid through the use of Section 1115 Medicaid waivers. Wisconsin submitted a waiver amendment request to CMS in June 2017 and Maine submitted a waiver application to CMS in August 2017. Unlike previous waivers that encompass the ACA’s Medicaid expansion, Wisconsin and Maine are seeking waiver authority to make significant changes to Medicaid that would affect non-expansion Medicaid populations.