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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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  • Analysis of 2016 Premium Changes in the Affordable Care Act’s Health Insurance Marketplaces

    Fact Sheet

    The chart and tables below present an updated analysis of changes in premiums for the lowest- and second-lowest cost silver Affordable Care Act (ACA) marketplace plans in major cities in 48 states and the District of Columbia, where we were able to find complete data on rates for all insurers. This page will be updated as complete rate information becomes available for more states. More background can be found in our earlier analysis of 2016…

  • How Primary-Care Physicians Are Handling the Influx of Newly Insured

    News Release

    In his column for The Wall Street Journal's Think Tank, Kaiser’s President Drew Altman is joined by The Commonwealth Fund's President David Blumenthal to discuss the impact of the Affordable Care Act’s coverage expansion on the primary care delivery system. Their analysis is based on the Kaiser-Commonwealth National Survey of Primary Care Providers. All previous columns by Drew Altman are available online.  

  • Analysis of UnitedHealth Group’s Premiums and Participation in ACA Marketplaces

    Issue Brief

    This analysis looks at how a potential withdrawal by UnitedHealth Group from the Affordable Care Act (ACA) marketplaces in 2017 could impact insurer competition and premiums, finding a significant impact in some markets, though it would have a minimal effect on the average benchmark premium nationwide, The impacts of a UnitedHealth withdrawal would vary considerably by state and market area, with a more pronounced effect in rural areas. Since UnitedHealth often is not one of…

  • Insurer Competition, Monthly Premiums Could Be Affected in Some Markets if UnitedHealth Group Exits ACA Marketplaces

    News Release

    A withdrawal by UnitedHealth Group from the Affordable Care Act (ACA) marketplaces in 2017 could have a significant impact on insurer competition and premiums in some markets, though it would have a minimal effect on the average benchmark premium nationwide, according to a new analysis from the Kaiser Family Foundation. Late last year, UnitedHealth announced that it experienced significant financial losses in ACA compliant plans and that it would decide about future participation in ACA…

  • Is ACA Coverage Affordable for Low-Income People? Perspectives from Individuals in Six Cities

    Issue Brief

    This brief presents findings from focus groups with low-income Medicaid and Marketplace enrollees in six cities: Baltimore, MD; Columbus, OH; Oakland, CA; Richmond, VA; St. Louis, MO; and Tampa, FL. It explores their experiences signing up for coverage; their perceptions of whether the costs they pay for their coverage are affordable; their experiences accessing care; and the impact of out-of-pocket costs on their ability to get needed care. It provides insights into the ongoing financial…

  • Kaiser Health Tracking Poll: April 2016

    Report

    The April Kaiser Health Tracking Poll examines the role of health care issues in the presidential election. Health care is one of the top four issues mentioned by voters when asked which issues they most want to hear candidates discuss in the campaign, but half as many cite health care as mention the economy and jobs. It also examines the public’s experiences with prescription painkiller abuse and access to mental health care, as well as…