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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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  • How Are Hospitals Faring Under the Affordable Care Act? Early Experiences from Ascension Health

    Issue Brief

    Expanded health insurance coverage through the Affordable Care Act (ACA) is having a major impact on many of the nation’s hospitals through increases in the demand for care, increased patient revenues, and lower uncompensated care costs for the uninsured. This report examines the early experiences with the ACA by Ascension Health, the delivery subsidiary of the nation’s largest not-for-profit health system, Ascension. It finds that, overall, Ascension hospitals in Medicaid expansion states saw increased Medicaid…

  • Survey of Non-Group Health Insurance Enrollees, Wave 2

    Poll Finding

    The survey is the second in a series exploring the experiences and perceptions of people who purchase their own health insurance, the group perhaps most affected by the Affordable Care Act's reforms to the individual insurance market and tax subsidies to make such coverage more affordable. It includes people in ACA-compliant plans sold both inside and outside the federal and state marketplaces, as well as those still in non-compliant plans, which took effect prior to…

  • Challenges to Forecasting Obamacare Enrollment for 2015

    News Release

    In his latest column for The Wall Street Journal’s Think Tank, Drew Altman explains why 2015 enrollment in the Affordable Care Act’s marketplaces is very hard to predict. All previous columns by Drew Altman are available online.

  • Web Briefing: Early Impacts of the Medicaid Expansion for the Homeless Population

    Event Date:
    Event

    The Affordable Care Act’s Medicaid expansion provides a significant opportunity to increase health coverage and improve access to care for individuals experiencing homelessness, who historically have had high uninsured rates and often have multiple, complex physical and mental health needs. On Monday, December 15, 2014, the Kaiser Family Foundation hosted a web briefing to examine the early impacts of the ACA’s Medicaid expansion on the homeless population, as well as opportunities and challenges looking forward.  The…

  • How Will the Uninsured in Colorado Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in Colorado, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in Colorado are eligible for Medicaid or financial assistance in…

  • How Will the Uninsured in Iowa Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in Iowa, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in Iowa are eligible for Medicaid or financial assistance in…

  • How Will the Uninsured in Louisiana Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in Louisiana, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in Louisiana are eligible for Medicaid or financial assistance in…

  • How Will the Uninsured in Oregon Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in Oregon, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in Oregon are eligible for Medicaid or financial assistance in…

  • How Will the Uninsured in South Dakota Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in South Dakota, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in South Dakota are eligible for Medicaid or financial…

  • How Will the Uninsured in Tennessee Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in Tennessee, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in Tennessee are eligible for Medicaid or financial assistance in…