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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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  • Patient Cost-Sharing Under the Affordable Care Act

    Report

    Under the Affordable Care Act (ACA), four tiers of health insurance will be offered in the health insurance exchanges and throughout the individual and small group markets beginning in 2014. Under the minimum coverage plan, the “Bronze” plan, the insurance plan will pay for 60 percent of the costs of covered benefits on average while the individual enrolled will pay the remaining 40 percent in deductibles, copays and coinsurance. Individuals will have the option to…

  • Insurer Rebates under the Medical Loss Ratio: 2012 Estimates

    Report

    Beginning in 2011, the Affordable Care Act (ACA) requires insurance plans to pay out a minimum percentage of premium dollars towards health care expenses and quality improvement activities, limiting the amount spent on administrative and marketing costs and profit. Under the law, large group plans are required to spend at least 85 percent of premium dollars on health care and quality improvement, while small group plans must spend at least 80 percent. These ratios are…

  • The Health Reform Law’s Medicaid Expansion: A Guide to the Supreme Court Arguments

    Issue Brief

    One significant element of the pending U.S. Supreme Court case challenging the Affordable Care Act is the constitutionality of the law's Medicaid expansion. This provision of the law requires states that choose to participate in the Medicaid program to cover nearly all adults under age 65 with household incomes at or below 133% of the federal poverty level as of January 2014. A ruling on the Medicaid expansion could have far-reaching impacts on the present…

  • The Role of the Basic Health Program in the Coverage Continuum: Opportunities, Risks & Considerations for States

    Issue Brief

    This brief assesses the potential benefits and drawbacks to states from implementing a Basic Health Program under the Affordable Care Act. The law gives states the option of creating a Basic Health Program, using federal tax money to subsidize insurance coverage for low-income residents who would otherwise be eligible to purchase coverage through a state exchange. Such a program would give states the ability to provide more affordable coverage for these low-income residents and improve…

  • Implementing Health Reform in the States

    Event Date:
    Event

    The Alliance for Health Reform, Robert Wood Johnson Foundation and the Association of Health Care Journalists sponsored this live webinar on March 27, 2012, to take a look at what's happening in the states with implementation of the Patient Protection and Affordable Care Act. Many of the key decisions implementing the health reform law are left to the states. For example, states have leeway in how they set up health insurance exchanges, where uninsured individuals…

  • KFF Data Note: A Snapshot of Public Opinion on the Individual Mandate

    Perspective

    This week, the Supreme Court hears arguments on several challenges to the Patient Protection and Affordable Care Act (ACA), including the provision that requires individuals to purchase health insurance as of 2014, known as the individual mandate. For the two years since the law’s passage, and during the debate leading up to it, this provision has been one of the most controversial aspects of the law. As the lawyers, policymakers, ACA opponents and supporters focus…

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

    Perspective

    As the Supreme Court hears cases challenging the constitutionality of parts of the Affordable Care Act, a relatively small share of the public thinks the Supreme Court’s decision will have a lot of impact on their family (28 percent). At the same time, the public is divided as to whether the law overall will leave their own families better off (26 percent), worse off (33 percent), or if it won’t make much difference (34 percent).…

  • The Individual Mandate: How Sweeping?

    Perspective

    The so-called "individual mandate"  – the provision under the Affordable Care Act (ACA) that requires most individuals to carry a minimum level of insurance coverage and is now being considered by the Supreme Court – has emerged as the least popular element of the reform law and the prime target for its opponents. Yet in practice, the mandate may not be quite as far-reaching as the controversy over it suggests. The vast majority of Americans already…

  • A Reporter’s Guide to Supreme Court Arguments on Health Reform

    Event Date:
    Event

    The Alliance for Health Reform and the Robert Wood Johnson Foundation sponsored this reporters-only briefing to help journalists cover the Supreme Court arguments challenging the Patient Protection and Affordable Care Act and their aftermath with greater depth and understanding. Panelists focus on tips, story ideas and angles that have perhaps been underreported or overlooked, as well as angles for after the court ruling comes down, expected in June. The panel was co-moderated by Ed Howard…