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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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  • Covering The ACA May Be Almost As Hard As Implementing It

    From Drew Altman

    This Pulling It Together was adapted from a column I published earlier this week in Politico, with a new introduction added. You can read the original Politico column here. The implementation of the ACA is news and the public will demand information about it. Journalists and news organizations have an obligation to cover this story.  As Kaiser CEO I serve as the publisher of our non-profit news service, Kaiser Health News, and also as the head…

  • Transitioning Beneficiaries with Complex Care Needs to Medicaid Managed Care: Insights from California

    Issue Brief

    This brief examines how health service providers, plan administrators, and community-based organizations in Contra Costa, Kern, and Los Angeles Counties experienced the transition of Medi-Cal-only seniors and persons with disabilities (SPDs) to managed care as part of the state’s “Bridge to Reform” Medicaid waiver. Findings presented may inform similar transitions of high-need beneficiaries in other states and coverage expansions in 2014 under the Affordable Care Act.

  • Uncompensated Care for the Uninsured in 2013: A Detailed Examination

    Report

    This report provides estimates of spending for uncompensated care, in 2013, just before implementation of health reform’s major coverage provisions. The report estimates the amount of uncompensated care provided, analyzes the site of care for uncompensated services, and details sources of funding for uncompensated care. These estimates provide an important baseline against which to measure major changes that are occurring under the ACA.

  • Visualizing Health Policy: Preventive Services for Women and the ACA

    Other Post

    This month’s Visualizing Health Policy infographic takes a look at preventive health services for women, including missed opportunities for preventive counseling on risk factors (such as smoking or alcohol) and sexual health issues (such as contraception, sexually transmitted infections, and domestic violence), the effects of lack of insurance on rates of mammograms and other screening tests for women, and how costs are a barrier that cause some women to postpone preventive services or skip a…

  • The Health-Cost Problem Is Coming Back

    From Drew Altman

    Drew Altman, in The Wall Street Journal’s Think Tank, discusses how the conversation will soon shift back to health-care costs from health coverage, because they are rising more sharply again. And as the discussion turns back, he says that because there is no national agreement on a strategy to address increasing costs, current efforts in the public and private sector, however fragmented and uncoordinated, will need to step up their game.

  • Health Coverage and Care for Youth in the Juvenile Justice System: The Role of Medicaid and CHIP

    Issue Brief

    This brief provides an overview of the health and mental health needs of girls and boys in the juvenile justice system and the role of Medicaid and CHIP in addressing those needs. It focuses on the circumstances of youth who are placed in juvenile justice residential facilities, the discontinuity of Medicaid coverage for those youth, and the options for improving coverage, continuity of care and access to needed services post-discharge, including new opportunities provided by…

  • The Louisiana Health Care Landscape

    Fact Sheet

    This fact sheet provides an overview of resident socio-demographic characteristics, population health, health coverage, and the health care delivery system in Louisiana both pre-Hurricane Katrina and in the era of health reform.

  • 2016 Survey of Health Insurance Marketplace Assister Programs and Brokers

    Report

    In its third year, the survey tracks the experiences of assistance programs signing people up for Affordable Care Act coverage during open enrollment and, for consumers who qualify, during special enrollment periods. This year, for the second time, the survey includes health insurance brokers who helped people apply for non-group coverage in an ACA marketplace.

  • Understanding Medicaid Hospital Payments and the Impact of Recent Policy Changes

    Issue Brief

    Medicaid payments to hospitals, which include base and supplemental payments, play an important role in hospital finances and can affect beneficiaries’ access to care.This brief provides an overview of Medicaid payments for hospitals and explores the implications of the ACA Medicaid expansion, including changes in uncompensated care, as well as payment policy changes on hospital finances.