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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.”

new and noteworthy
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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  • Testimony: Wellness Programs and Nondiscrimination Under Employer-Sponsored Group Health Plans

    Issue Brief

    This testimony by the Foundation's Karen Pollitz before the Equal Employment Opportunity Commission included background on wellness programs, wellness incentives and nondiscrimination since 1996, and questions and issues related to proposed regulations governing the design and application of wellness programs offered in conjunction with employer-sponsored group health plans.

  • How Will Health Reform Impact Young Adults?

    Issue Brief

    Adults ages 19 to 29 have the highest uninsured rate of any age group in the United States. The 13.7 million uninsured people in this age group comprise nearly a third of the overall uninsured population.

  • Beyond Rebates: How Much Are Consumers Saving from the ACA’s Medical Loss Ratio Provision?

    Perspective

    The Medical Loss Ratio (MLR) provision of the Affordable Care Act (ACA) saved consumers an estimated $2.1 billion last year, in the form of lower premiums and rebates, according to a new analysis by the Kaiser Family Foundation. Under health reform, insurers must issue consumer rebates if they fail to spend a certain portion of premium income on health care claims and quality improvement expenses, thereby limiting what they may spend on administrative expenses or keep as profits.

  • The Future of Medicare Advantage: Are We on the Right Path?

    Event Date:
    Event

    This June 10 briefing looked at Medicare Advantage and changes affecting it, including revised calculations of payments from CMS, and the Affordable Care Act's reduced payments to Medicare Advantage plans. Speakers discussed how Medicare Advantage plans are expected to respond to payment changes; if quality bonus payments created significant changes in patient care or plan choices; and what implications could these decisions have on beneficiaries with regard to premiums, benefits and more.

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

    Fact Sheet

    The Affordable Care Act (ACA) could help many uninsured Blacks through the law’s expansion of Medicaid and the creation of new health insurance exchange marketplaces with tax credits to help moderate-income people purchase coverage. This brief provides an overview of the Black population in the U.S., their health coverage today and the potential impact of the ACA coverage expansions.

  • Helping People With HIV Navigate the Transition to ACA Coverage: Summary of a Roundtable Discussion

    Issue Brief

    In March 2013, the Kaiser Family Foundation convened key HIV/AIDS stakeholders from a variety of backgrounds to explore opportunities for maximizing the beneficial impact of the Affordable Care Act (ACA) for people living with HIV and examine strategies to help them navigate the transition to new health coverage. This report summarizes the information shared and key issues discussed at the meeting.