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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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  • How Will the Uninsured in Vermont Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in Vermont, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in Vermont are eligible for Medicaid or financial assistance in the Marketplace. For states not expanding Medicaid, the report quantifies how many uninsured people fall into the “coverage gap,” meaning they will be ineligible for financial assistance in the Marketplace or for Medicaid in their state despite having an income below the federal poverty level.

  • Kaiser Health Policy News Index: March 2015

    Feature

    The public paid more attention to news coverage of the measles outbreak in the U.S. and the resulting debate on whether vaccinations should be required for all kids than any other news story included in this month's Kaiser Health Policy News Index. Nearly half correctly identified that the number of confirmed measles cases in the U.S. since the outbreak began late last year is closer to 100, and most say they are not too or not at all worried about the measles outbreak.

  • JAMA Forum: Of SCOTUS and Chicken

    Perspective

    Larry Levitt's March 2015 post explores what could happen if the U.S. Supreme Court rules for the plaintiffs in the King v. Burwell case, the lawsuit that challenges the federal government’s authority to provide financial assistance to people who buy insurance in federally-operated marketplaces created by the Affordable Care Act.

  • The Effects of the Medicaid Expansion on State Budgets: An Early Look in Select States

    Issue Brief

    This brief examines the early state budget effects of the ACA Medicaid expansion in three states: Connecticut, New Mexico, and Washington State. States were asked about savings and costs in Medicaid, behavioral health, corrections, uncompensated care spending, etc. as well as revenues. Findings from a study looking at Kentucky are also included.

  • The Health-Care Enrollment Story Is in the States

    News Release

    In his latest column for The Wall Street Journal's Think Tank, Drew Altman examines the variation among states beneath the national Affordable Care Act’s Marketplace enrollment numbers released by the U.S. Department of Health and Human Services. All previous columns by Drew Altman are available online.

  • Majority of Public Says Congress Should Act to Close Gaps if the Supreme Court Bars Financial Help for Purchasing Insurance in States Relying on healthcare.gov; Most in Potentially Affected States Want Their State To Set Up Its Own Marketplace if Needed

    News Release

    Views Mixed on Changes to Definition of Full-Time Work For Employer Mandate, with More Opposed than Supportive, And a Third Saying They Don't Know Enough to Say Public Remains Divided Over Next Steps for the Affordable Care Act, Though Most Expect Major or Minor Changes under GOP Congress this Year Though few Americans are paying…

  • Kaiser Health Tracking Poll: January 2015

    Feature

    The latest Kaiser Health Tracking Poll finds though few Americans are paying attention to the pending Supreme Court case over whether the health care law says that people in all states can get financial help to buy health insurance, most say they would want Congress and their state to act to fix potential gaps should the Supreme Court rule in favor of the plaintiffs. With a new Republican majority controlling both Houses of Congress, the public remains divided on what they would like Congress to do next with the Affordable Care Act (ACA) overall. About a third (32%) say they favor repeal, another 14 percent would like the law scaled back, 19 percent want the law to move forward as is, and nearly a quarter (23%) would like to see the law expanded.

  • New Kaiser 50-State Survey Provides Data on States’ Medicaid and Children’s Health Insurance Program Eligibility Levels and Enrollment, Renewal and Cost-Sharing Policies as of January 2015

    News Release

    A new survey from the Kaiser Family Foundation provides a comprehensive look at where states stand with their Medicaid and Children’s Health Insurance Program (CHIP) eligibility levels and enrollment, renewal and cost-sharing policies as of January 2015, one year into implementation of the Affordable Care Act’s major coverage provisions.

  • Kaiser Health Policy News Index: July 2014

    Feature

    The July Kaiser Health Policy News Index finds the most closely followed news stories this month were discussions about how to deal with large numbers of unaccompanied minors arriving in the U.S. from Central America, military and political conflict between Israel and Hamas, and ongoing problems related to Veterans Affairs (or V.A.) medical facilities. Six in ten report closely following the Supreme Court’s decision in a case about whether for-profit companies should be required to cover birth control for women in their workers’ health plans (the Hobby Lobby case), and about half of the public is able to correctly identify the Court’s decision.

  • Kaiser Health Tracking Poll: July 2014

    Feature

    The July Kaiser Health Tracking Poll finds that over half the public has an unfavorable view of the Affordable Care Act (ACA) in July, up eight percentage points since last month, while the share viewing the law favorably held steady at just under four in ten. This month’s poll also explored the public’s reaction to the Supreme Court decision upholding craft store chain Hobby Lobby’s ability to deny workers coverage of certain contraceptives based on the company’s owners’ religious beliefs. The public overall is evenly split between those who approve and disapprove of the Court’s decision, with only a small difference in opinion between women and men, but deep divisions by party identification, ideology, and religious affiliation.