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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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  • The Flip Side of Higher Premiums: Better Coverage

    Perspective

    Time Magazine's recent cover story on health care – "Bitter Pill" by Steven Brill – has focused attention on hospital prices, especially for people paying out of their own pockets. This is not a new issue, but certainly one that deserves attention.

  • Health Affairs Article: Comparing the Assets of Uninsured Households to Cost Sharing Under High Deductible Health Plans

    Issue Brief

    Health Affairs Article: Comparing the Assets of Uninsured Households to Cost Sharing Under High Deductible Health Plans Relatively few uninsured households have enough financial assets to cover the cost-sharing in consumer-driven health plans tied to Health Savings Accounts (HSAs), according to this study by Kaiser Family Foundation researchers published as a Health Affairs Web Exclusive on April 15,…

  • The Requirement to Buy Coverage Under the Affordable Care Act

    Other Post

    Note:  Congress eliminated the federal tax penalty for not having health insurance, effective January 1, 2019. Along with changes to the health insurance system that guarantee access to coverage to everyone regardless of pre-existing health conditions, the Affordable Care Act includes a requirement that many people be insured or pay a penalty.

  • Health Reform Hits Main Street

    Video

    This short cartoon explains the problems with the current health care system, the health reform changes that are happening now, and the big changes coming in 2014 as part of the Affordable Care Act (ACA). You can view the video on our site and it is also available on YouTube.

  • Data Note: Attempting to Measure Early Impact of the ACA through National Public Opinion Polls- A Note of Caution and What to Watch For

    Feature

    After the October start of open enrollment, under the Affordable Care Act, many journalists, policymakers, and the public at large are eager for early data indicating how the law is working from the perspective of potential enrollees. In particular, given the problems with Healthcare.Gov and some of the state exchange websites, many people want quantitative data about people’s experiences attempting to purchase or enroll in some sort of health insurance coverage using these mechanisms.
    This Data Note raises a note of caution about the possible pitfalls of using standard national public opinion polls to make judgments about Americans’ early experiences with health plan enrollment under the ACA.

  • A Profile of Community Health Center Patients: Implications for Policy

    Issue Brief

    Community health centers are a key source of primary care in underserved areas. Their role will grow as coverage expands under the ACA. To sharpen understanding of the health center patient population, this brief compares them to the low-income population overall, using the Health Center Patient Survey and National Health Interview Survey. The pre-ACA profile of health center patients that emerges sets the stage for measuring change and highlights important implications of states’ Medicaid expansion decisions.