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The ACA MarketplaceS

Tracking Insurer Changes in the ACA Marketplaces in 2027

As of June 22, six carriers have announced that they will exit the Marketplaces in plan year 2027, either in some or all states that they are currently offering plans; four carriers have announced they will enter new Marketplaces.

An image of text is an excerpt from Cynthia Cox's quick take which reads, "While the Trump administration attributes this drop in enrollment to their attempts to address fraud, this coverage loss happened at the same time millions of people faced steep increases in their premium payments — often in the double or even triple digits — with the expiration of enhanced tax credits."

ACA Marketplace Enrollment Is Down By 3 Million After Big Jump in Premium Payments

Enrollment dropped 13% following the expiration of enhanced premium tax credits at the beginning of this year. Enrollment fell from a high of 22.1 million people in 2025 to 19.2 million people in February 2026. While the Trump administration attributes this drop in enrollment to their attempts to address fraud, this coverage loss happened at the same time millions of people faced steep increases in their premium payments – often in the double or even triple digits – with the expiration of enhanced tax credits.

POLLING on the ACA

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.

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  • Health Insurance Marketplace Calculator

    Feature

    The Health Insurance Marketplace Calculator, updated with 2025 premium data, provides estimates of health insurance premiums and subsidies for people purchasing insurance on their own in health insurance exchanges (or “Marketplaces”) created by the Affordable Care Act (ACA).

  • How Will the 2025 Reconciliation Law Affect the Uninsured Rate in Each State?

    Issue Brief

    This analysis apportions the increase in the number of uninsured across the 50 states and DC. CBO estimates that the reconciliation law will increase the number of uninsured by 10M in 2034 and rise to over 14M if enhanced premium tax credits for ACA Marketplace enrollees expire later this year.

  • Loss of the Affordable Care Act Would Widen Racial Disparities in Health Coverage

    Policy Watch

    In November, the Supreme Court is scheduled to hear arguments on a legal challenge that seeks to overturn the Affordable Care Act (ACA). This analysis shows that new coverage options under the ACA have contributed to large gains in coverage, particularly among people of color, helping to narrow longstanding racial disparities in health coverage.

  • Health Policy 101 Introduction

    Feature

    Health Policy 101 is a comprehensive guide covering fundamental aspects of U.S. health policy and programs, including Medicare, Medicaid, the Affordable Care Act, employer-sponsored insurance, the uninsured population, health care costs and affordability, women's health issues, and health care politics. It includes overviews of private health insurance regulation, racial and ethnic disparities, public health, international comparison of health systems, U.S. global health policy, and the federal role in health policy. The chapters can be downloaded…

  • Affordable Care Act Marketplace and Medicaid Expansion Enrollment Reached a Combined 44 Million in 2024  

    News Release

    A new KFF analysis finds that there were 44 million people enrolled in health coverage through the Affordable Care Act’s Marketplaces and its expansion of the Medicaid program in 2024. That represents about 1 in every 6 people under age 65, or 16.4%.   There was significant variation in ACA enrollment across states, ranging from about 1 in 4 nonelderly people in Louisiana, Oregon, Florida, and New York to fewer than 1 in 10 in…

  • What’s Next for the Affordable Care Act?

    Event Date:
    Event

    Health coverage enrollment through the ACA marketplaces now exceeds 24 million people, a dramatic increase in recent years fueled largely by enhanced premium aid. With the subsidies set to expire at the end of this year, Congress and the Trump Administration will be faced with a choice of whether and how to extend the subsidies, alongside broader discussion about the budget. On February 10, KFF’s Larry Levitt moderated a 45-minute virtual discussion with an expert…

  • Calculadora del Mercado de Seguros Médicos

    Feature

    Esta calculadora ilustra las primas (el costo mensual de su seguro) y subsidios para las personas que compran seguro médico por su propia cuenta en el mercado de seguros de salud (o de intercambio) creado por la Ley de Cuidado de Salud a Bajo Precio (Affordable Care Act, ACA, en inglés). Con esta calculadora, usted puede introducir diferentes niveles de ingresos, edades, y el tamaño de su familia para obtener un estimado de su elegibilidad…

  • KFF Health Tracking Poll: Public Weighs in on Health Care Debate and Government Shutdown 

    Poll Finding

    This poll finds that public support remains high for extending the enhanced ACA tax credits set to expire at the end of the year. Three quarters of the public favor of extending them, though support among Republicans has dipped since September. Most Democrats want a Congressional budget deal to include an extension of the tax credits.

  • Preventive Services Covered by Private Health Plans under the Affordable Care Act

    Fact Sheet

    Note:  This content was updated on February 28, 2024  to incorporate new FAQs from CMS. Tables 1 and 2 were also updated to include updated recommendations. It has been more than ten years since the Affordable Care Act (ACA) required private insurance plans to cover recommended preventive services without any patient cost-sharing. Research has shown that evidence-based preventive services can save lives and improve health by identifying illnesses earlier, managing them more effectively, and treating…