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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

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  • Health Care Reform and the CLASS Act

    Issue Brief

    This issue brief examines the Community Living Assistance Services and Supports (CLASS) program, a component of the health reform law that establishes a national, voluntary insurance program for purchasing community living services and supports that is designed to expand options for people who become functionally disabled and require long-term help.

  • Kaiser Health Tracking Poll — August 2009

    Poll Finding

    The August Kaiser Health Tracking Poll finds a slim majority of Americans continues to favor moving forward on health care reform now despite an intensifying ad war and a political climate of contentious town hall meetings that coincide with rising concerns about the reform effort.

  • Health Reform: Lessons From Massachusetts

    Event Date:
    Event

    As Congress debates comprehensive national health reform, the Kaiser Family Foundation has two reports and an updated fact sheet that examine state-level health reform in Massachusetts and the lessons it offers for policymakers in Washington.

  • Oral Histories: Report From a Dental Fair for Uninsured Adults

    Report

    This report profiles patients attending a dental fair in rural Virginia to highlight the impact of lack of coverage for oral health services on adults. Uninsured adults have vast oral care needs, and untreated dental problems can have serious health, employment and social consequences, highlighting the relationship between inadequate benefits and unmet health needs.

  • Medicaid and CHIP Health Reform Implementation Timeline

    Issue Brief

    This timeline highlights the implementation dates for provisions in the new health reform law that are related to Medicaid and the Children's Health Insurance Program. While major expansions of Medicaid are set to occur in 2014, many other key provisions in the health reform law become effective between 2010 and 2014. Timeline (.

  • Pulling it Together: Health Reform’s Six-Month Checkup

    Perspective

    Six months after its enactment, there are two totally different stories to tell about the health-reform law. The public remains split on the law largely along traditional partisan lines. Confusion and misperception are rampant, with more than a third of seniors still thinking the law contains "death panels" (it does not).

  • 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.