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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.”

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

Timely insights and analysis from KFF staff

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  • Proposed Medicaid Expansion in Tennessee

    Fact Sheet

    This fact sheet describes Tennessee’s 1115 waiver demonstration project, Insure Tennessee, which expands the State’s Medicaid program under the Affordable Care Act.

  • New Kaiser Survey Finds Eleven Million Newly Insured Adults As of Mid-December, But Nearly Half Who Remained Uninsured One Year After Full Implementation of the Affordable Care Act Were Eligible for Medicaid or Marketplace Tax Credits

    News Release

    Many Of The Remaining Uninsured Say They Didn’t Seek Coverage or Considered It Too Expensive, While Others Were Told (Or Believed) They Were Not Eligible About 11 million adults had become newly insured under the Affordable Care Act by mid-December 2014, according to a new national survey of more than 10,000 adults by the Kaiser…

  • Medicare’s Role in Health-Care Payment Reform

    News Release

    In his latest column for The Wall Street Journal's Think Tank, Drew Altman explores whether Secretary Burwell's announcement this week about Medicare's payment reform initiative is another sign that the public sector is becoming the engine driving payment and delivery reform. All previous columns by Drew Altman are available online.

  • An Overview of New CMS Data on the Number of Adults Enrolled in the ACA Medicaid Expansion

    Issue Brief

    New preliminary data from the Medicaid Budget and Expenditure System (MBES) released by CMS details for the first time the number of adults enrolled in Medicaid under the new Affordable Care Act (ACA) Medicaid expansion category. This issue brief provides an overview of the new data as well as how it differs from the Performance Indicator data.

  • Will the Iran Debate Defuse Partisan Battles Over Obamacare?

    From Drew Altman

    In this column for The Wall Street Journal's Think Tank, Drew Altman discusses whether the debate about the Iran deal may bring a respite for the Affordable Care Act from politics as usual, and how long it might last.

  • Will the Iran Debate Defuse Partisan Battles Over Obamacare?

    News Release

    In his latest column for The Wall Street Journal's Think Tank, Drew Altman discusses whether the debate about the Iran deal may bring a respite for the Affordable Care Act from politics as usual, and how long it might last. All previous columns by Drew Altman are available.

  • Media Briefing to Release New Survey Tracking California’s Previously Uninsured Residents Under the Affordable Care Act

    Event Date:
    Event

    Media-only web briefing that released a new survey tracking the experiences of California's previously uninsured residents under the Affordable Care Act (ACA). New survey provides a detailed assessment of how well the ACA is working for previously uninsured residents in a state that embraced the ACA's coverage expansion opportunities by establishing the Covered California insurance marketplace and expanding its Medi-Cal program.

  • The Connection Between Health Coverage and Income Security

    From Drew Altman

    In this column in The Wall Street Journal's Think Tank, Drew Altman shows how expanding health coverage and improving economic security for working Americans are connected even though they are often part of separate policy debates.

  • The Connection Between Health Coverage and Income Security

    News Release

    Using data from a new Kaiser Family Foundation panel survey following the uninsured in California who gained coverage since 2010, Drew Altman's latest column in The Wall Street Journal's Think Tank shows how expanding health coverage and improving economic security for working Americans are connected even though they are often part of separate policy debates.

  • Racial and Ethnic Disparities in Access to and Utilization of Care among Insured Adults

    Issue Brief

    This analysis based on data from the 2014 Kaiser Survey of Low-Income Americans examines differences in access to and utilization of care for Black and Hispanic adults compared to White adults among those who are uninsured, enrolled in Medicaid, and privately insured. The findings suggest that gains in health coverage under the ACA will lead to improvements in access to care and utilization for White, Black, and Hispanic adults. They also highlight the importance of increased attention to addressing racial and ethnic disparities in access to and utilization of care among privately insured adults, particularly as the privately insured population becomes more diverse as a result of greater enrollment of people of color into private plans through the ACA Marketplaces.