Affordable Care Act

The ACA MarketplaceS

Change in February effectuated enrollment, by state, 2025-2026

How Has ACA Marketplace Enrollment Changed Across States in 2026?

ACA Marketplace enrollment fell this year in every state except New Mexico, which was the only state to fully replace the enhanced premium tax credits that expired last year with a state-funded subsidy, according to a new KFF analysis of effectuated enrollment data. The Marketplace enrollment decline—the first in seven years—follows several years of rapid enrollment growth and coincides with the end of the enhanced federal subsidies.

In Preliminary Rate Filings, ACA Marketplace Insurers Largely Propose Double-Digit Premium Increase For 2027, Following a Steep Climb This Year 

ACA Marketplace insurers are proposing a median premium increase of 14% for 2027— indicating a likely second consecutive year of double-digit increases, according to a new analysis of preliminary rate filings in 16 states and DC. If these increases hold, typical premiums for insurers participating in the ACA Marketplaces would jump by more than one-third between 2025 and 2027.

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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  • Medicaid and Community Health Centers: The Relationship Between Coverage for Adults and Primary Care Capacity in Medically Underserved Communities

    Issue Brief

    Community health centers play an important role in providing care to uninsured and low-income individuals living in medically underserved communities. They rely on many different revenue sources and, over time, Medicaid has become a central source of funding for most health centers. To better understand how Medicaid influences health center practice, this paper compares the strength of health centers in states that have expanded Medicaid coverage for adults to health centers states with more limited…

  • The New Review and Approval Process Rule for Section 1115 Medicaid and CHIP Demonstration Waivers

    Fact Sheet

    For many years, Section 1115 waivers have been used in the Medicaid program to provide states an avenue to test and implement coverage approaches that do not meet federal program rules, but there have been longstanding concerns about the lack of public input and transparency in the waiver approval process. As a result, the Affordable Care Act required the Department of Health and Human Services to issue regulations designed to ensure that the public has…

  • Data Note: Americans’ Views on the Personal Impact of the ACA and the Supreme Court’s Decision

    Poll Finding

    This Data Note draws from the March 2012 Kaiser Health Tracking Poll and examines people's impressions of how the law and the Court case will affect them, focusing primarily on those groups that are in the position to receive the greatest benefits. For the most part, those that stand to benefit most are not more likely than others to expect to be better off under the law, or to feel that the Supreme Court's decision…

  • KFF February Health Tracking Poll: Nearly Half Confused About Status of the Health Reform Law

    Perspective

    The latest Kaiser Health Tracking poll finds that amid a public debate about contraceptive coverage in insurance plans, 63 percent of Americans support a new federal requirement that plans include no-cost birth control, while a third oppose it. Catholics split along similar lines, but there’s a big partisan divide, including among women: 85 percent of women who are Democrats support the requirement, compared with 42 percent of women who are Republicans. The public is also divided…

  • Policy and Political Implications of the Supreme Court Case on the Affordable Care Act

    Event Date:
    Event

    This webcast features a Kaiser Family Foundation briefing held on March 14, 2012, examining the policy and political implications of the pending U.S. Supreme Court case on the Affordable Care Act (ACA). At the briefing, the Foundation released new polling data on the public’s views about the case as well as their more general views about the health reform law. Participants included: Kaiser President and CEO Drew Altman (moderator)Joe Onek, Principal, The Raben Group Sheila…

  • Explaining Health Care Reform: Medical Loss Ratio (MLR)

    Fact Sheet

    This fact sheet explains the Medical Loss Ratio requirement under the Affordable Care Act (ACA). The MLR provision limits the portion of premium dollars health insurers may spend on administration, marketing, and profits. Under health care reform, health insurers must publicly report the portion of premium dollars spent on health care and quality improvement and other activities in each state they operate. Insurers failing to meet the applicable standard must pay rebates to consumers and…

  • Private Insurance Benefits and Cost-Sharing Under the ACA

    Perspective

    The Department of Health and Human Services (HHS) recently released guidance on the two key components that determine the level of protection that private insurance plans will provide to consumers under health reform. The first involves the services that insurance plans must cover, and the second involves how much patients must pay out-of-pocket for those services. The Affordable Care Act (ACA) establishes new rules for what insurers must provide for both components starting in 2014.…

  • Insurance Coverage of Contraceptives

    Perspective

    In this post, we answer some of the key questions about the new contraceptive coverage policy generally, and more specifically, how it will be applied to religious organizations.

  • Quality Care for Less Money: Can Regional Successes Go National?

    Event Date:
    Event

    On February 15, the Kaiser Family Foundation hosted an event featuring a PBS documentary with former Washington Post correspondent T.R. Reid – U.S. Health Care: The Good News – which explores efforts to provide low-cost, quality health care in the U.S. The film looks at variations in health spending across the country and showcases efficient health care delivery systems, like Grand Junction in Colorado and Group Health in Seattle, suggesting that these communities demonstrate that…

  • 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…