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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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  • Quality of Care in Community Health Centers and Factors Associated with Performance

    Issue Brief

    This study examines quality among health centers relative to Medicaid managed care organizations (MCOs). Chronic care quality among health centers is high; gaps in women’s preventive care are a concern. Lower-performing health centers have very high uninsured and homeless rates. The expansion of Medicaid and private insurance under the ACA may foster gains in health center quality performance.

  • A Guide to the Supreme Court’s Review of the Contraceptive Coverage Requirement

    Issue Brief

    This issue brief dissects the issues raised by the legal challenges to the Affordable Care Act’s requirement that private insurance plans include contraception as part of their coverage of preventive services for women. Over 40 for-profit corporations and over 40 nonprofit corporations have filed lawsuits claiming that the requirement to provide their employees with contraceptives violates their religious rights. On November 26, 2013, the Supreme Court agreed to hear two cases filed by for-profit corporations, Hobby Lobby and Conestoga Wood Specialties, that claim that this requirement violates their religious rights. At the crux of these cases is a question that the Supreme Court has not previously addressed: Do for-profit corporations have religious protections under the 1993 Religious Freedom Restoration Act and the First Amendment? The brief provides background on how the ACA’s contraceptive requirement works, summarizes some of the legal challenges brought by for-profit and non-profit organizations and discusses the implications of potential rulings by the Supreme Court.

  • Health Coverage for the Hispanic Population Today and Under the Affordable Care Act

    Report

    The more than 50 million Hispanics living in the United States make up 17 percent of the total population and are the nation's fastest growing racial or ethnic group. Many Hispanics continue to face disparities in health coverage and care, and they have the highest uninsured rate among racial/ethnic groups, with nearly one in three lacking coverage. This brief provides an overview of the Hispanic population in the U.S., their health coverage today and the potential impact of the ACA coverage expansions.

  • Oral Histories: Report from a Dental Fair

    Video

    This video profiles patients attending a dental fair in rural Virginia and highlights the impact of lack of coverage for oral health services. Uninsured adults have vast oral care needs, and untreated dental problems can have serious health, employment and social consequences.

  • Pre-X Redux

    From Drew Altman

    With the focus now mainly on exchanges, Medicaid expansions, and enrolling the uninsured in newly available coverage arrangements, there is less attention lately to the ACA insurance reforms which have always been the most popular parts of the law – changes which could affect every American’s insurance in some way and which go into effect…