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The ACA MarketplaceS

How Has Marketplace Enrollment Changed Across States in 2026?

Following several years of rapid enrollment growth in the ACA Marketplaces that corresponded with temporary enhanced premium tax credits, enrollment fell for the first time in seven years in 2026, when those tax credits expired. Every state except for New Mexico saw a drop in Marketplace enrollment from 2025 to 2026. State-based Marketplaces that run their own enrollment platforms, including those that partially offset the enhanced tax credits, generally saw lower drops in enrollment.

About the ACA

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Did the Affordable Care Act Make Health Care More Affordable?

The expiration of the ACA’s enhanced premium tax credits at the start of 2026, combined with rising insurer premiums, put a spotlight on health care affordability that extends beyond Marketplace enrollees. KFF’s Cynthia Cox examines the ACA’s record and the broader underlying question it raises: what’s a fair price for Americans people to pay for health care?

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  • Mapping the Effects of the ACA’s Health Insurance Coverage Expansions

    Interactive

    The Foundation originally released this interactive tool in February 2012.  More recent analysis of the Affordable Care Act's potential impact on each state's uninsured population can be accessed through this interactive tool and these individual state reports. The Affordable Care Act includes several provisions that allow many individuals across the U.S. to be eligible for Medicaid or for federal tax credits to subsidize the cost of insurance. The analysis below and zip code tool estimate…

  • Essential Health Benefits: Balancing Affordability and Adequacy

    Event Date:
    Event

    Under the Patient Protection and Affordable Care Act (PPACA), insurance plans offered through state insurance exchanges as well as non-grandfathered plans offered in the individual and small group markets - will be required to cover a set of health benefits and services called the "essential health benefits" package. Guidance issued last month by the Department of Health and Human Services will give each state some discretion to specify benefits package raises many questions. What is…

  • Key Issues to Consider for Outreach and Enrollment Efforts under Health Reform

    Issue Brief

    The Affordable Care Act will significantly expand health coverage opportunities through an expansion in Medicaid and the creation of new health insurance exchanges in 2014. Effective outreach and enrollment efforts will be vital for assuring the expansions translate into increased coverage. Based on a discussion with federal and state officials and experts, this report identifies key issues to consider with regard to outreach and enrollment under reform. The discussion was part of an ongoing series…

  • A Guide to the Supreme Court’s Review of the 2010 Health Care Reform Law

    Issue Brief

    With the Supreme Court preparing to hear oral arguments about challenges to the 2010 Affordable Care Act in March 2012, this Kaiser Family Foundation brief serves as a primer on the pending case, which challenges the constitutionality both of the law's individual mandate that requires most Americans to obtain health insurance and of provisions requiring states to expand eligibility for their Medicaid programs. The brief provides an overview of the pending case, the key constitutional…

  • January 2012 Kaiser Health Tracking Poll: The ACA and the Supreme Court

    Perspective

    As the Supreme Court prepares to hear legal challenges to the health reform law in March, the latest Kaiser Health Tracking Poll shows that most Americans (59 percent) expect the Justices to base their ruling on their own ideological views rather than their interpretation of the law (28 percent). As for the public’s views on the individual mandate, the poll once again shows that it continues to be unpopular with the public (67 percent unfavorable versus…

  • Betting on Private Insurers

    Perspective

    Just-released estimates of national health spending in 2010 by the Centers for Medicare and Medicaid Services (CMS) show that 45% of our health care spending is financed by the federal and state governments, primarily through the Medicare and Medicaid programs. This share has grown temporarily in recent years because of the economic downturn, as private insurance has declined and Medicaid has grown. It has also increased due to our demographic destiny: the growing cohort of baby…

  • La reforma del cuidado de salud llega al público

    Video

    ¿Esta confundido acerca de cómo la nueva ley de reforma de salud realmente funciona? Este video explica los problemas relacionados con el sistema de salud actual, los cambios que están sucediendo ahora, y los cambios importantes que se anticipan para el 2014.

  • The California Endowment and the Kaiser Family Foundation Release “Health Reform Hits Main Street” Animation in Spanish

    News Release

    Health Reform Explained – En Español  MENLO PARK, Calif. (January 12, 2012) – Today, The California Endowment and the Kaiser Family Foundation are releasing a Spanish-language version of “Health Reform Hits Main Street,” the popular animation that explains the major provisions of the Affordable Care Act. Written and produced by the Kaiser Family Foundation, the Spanish-language version of the animated movie features narration by a partner of The Endowment, Dra. Isabel Gómez-Bassols, psychologist and host…

  • Pulling it Together: 2012: The ACA, and More

    From Drew Altman

    What is remarkable about 2012 (and the current era in health policy) is how many big health policy issues and marketplace changes will be in play at the same time: HEALTH REFORM: There is the implementation of a historic but fragile health reform law, with a Supreme Court decision pending and so much hanging in the balance. MEDICARE AND MEDICAID: There are continuing debates about potentially big changes in Medicare and Medicaid, driven by the…

  • Kaiser Health Tracking Poll — January 2012

    Feature

    As the Supreme Court prepares to hear legal challenges to the health reform law in March, most Americans expect the Justices to base their ruling on their own ideological views rather than their interpretation of the law, according to the January Health Tracking Poll. Other key findings include: The public doubts the Supreme Court renders judgments based solely on the law. Three-quarters (75%) say they think that, in general, Justices let their own ideological views…