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Affordable Care Act

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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  • Medicaid’s Role for Black Americans

    Fact Sheet

    This fact sheet examines Medicaid's role for black Americans. It includes data on Medicaid's coverage of black Americans and the program's impact on their access to care, as well as the impacts of the recent recession and the coming expansion of Medicaid under health reform on enrollment in Medicaid among black Americans.

  • Enhanced Medicaid Match Rates Expire in June 2011

    Fact Sheet

    This fact sheet discusses the role played by the enhanced federal Medicaid matching funds available to states through the American Recovery and Reinvestment Act of 2009 (ARRA), and the implications for state Medicaid programs as that extra assistance expires June 30, 2011.

  • Preventive Services Covered by Private Health Plans under the Affordable Care Act

    Fact Sheet

    Note:  This content was updated on February 28, 2024  to incorporate new FAQs from CMS. Tables 1 and 2 were also updated to include updated recommendations. It has been more than ten years since the Affordable Care Act (ACA) required private insurance plans to cover recommended preventive services without any patient cost-sharing.

  • Pulling it Together: A Primer on Health in the Election

    Perspective

    There is a lot of talk in polling and political circles and some speculation in the media about the role of health reform in the midterm elections. We regularly measure what the public thinks about health reform and you see reports from our monthly tracking polls about that.

  • Snapshots: Health Benefit Offer Rates and Employee Earnings

    Issue Brief

    Employer-provided health insurance is the primary source of insurance coverage in the United States, covering almost 160 million people.1 About 90 percent of the non-elderly privately-insured population is covered by employer-sponsored plans, meaning that employer decisions about whether to offer health benefits will influence overall rates of insurance coverage in the United States.

  • Medicaid Coverage and Care for the Homeless Population: Key Lessons to Consider for the 2014 Medicaid Expansion

    Report

    Beginning in 2014, the Affordable Care Act ACA provides for a significant Medicaid expansion uninsured, low-income adults. Given their low incomes and high uninsured rate, individuals experiencing homelessness could significantly benefit from this expansion. However, it will be important to address the barriers they face to enrolling in coverage and accessing needed care.

  • Medicare Now and in the Future

    Issue Brief

    Download PDF Issue Medicare is a valuable source of health insurance for nearly 45 million Americans – mainly seniors ages 65 and older, but also 7 million younger adults with permanent disabilities.  Before Medicare was signed into law in 1965, about half of all seniors lacked hospital insurance.

  • Women’s Health and Election 2008

    Issue Brief

     Download PDF Women consistently cite health care as one of the top issues they want the Presidential candidates to address, reflecting their experiences with the health care system as patients, mothers, and caregivers for frail and disabled family members.

  • Medicaid and State Budgets: From Crunch to Cliff

    Fact Sheet

    This fact sheet discusses the status of Medicaid and state budgets in light of the continuing recession and the federal fiscal relief provided to state Medicaid programs through the American Recovery and Reinvestment Act (ARRA).