Affordable Care Act

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 Repeal of the Individual Mandate and Expansion of Loosely Regulated Plans are Affecting 2019 Premiums

    Issue Brief

    In health insurance systems designed to protect people with pre-existing conditions and guarantee availability of coverage regardless of health status, countervailing measures are also needed to ensure people do not wait until they are sick to sign up for coverage (as doing so would drive up average costs for other enrollees). The Affordable Care Act (ACA) included a variety of “carrots” (e.g., premium tax credits and cost-sharing reductions) and “sticks” (e.g., the individual mandate penalty…

  • Poll: As Midterms Approach, Health Care Remains Voters’ Top Issue, But President Trump and Other Factors Also Loom Large

    News Release

    Most Florida Voters Favor Expanding Medicaid in their State, As Do Voters across All Non-Expansion States In an expansive look at the role issues and politics may play in the 2018 midterm elections, the latest KFF Health Tracking Poll continues to find health care as the top issue for voters, but large shares of voters also say candidate characteristics, President Trump, and party control over Congress will be major factors. In the last KFF tracking…

  • Sources of Payment for Uncompensated Care for the Uninsured

    Issue Brief

    This brief estimates the level of public funding that was paid to help offset providers’ uncompensated care costs for the uninsured in 2017. To conduct the analysis, we rely on several secondary data sources including government budget appropriations and expenditure data for major public programs that provided funds to cover the cost of care for the uninsured, as well as analyses of secondary data sources completed by others.

  • Why Drug Price Negotiation Has Staying Power

    From Drew Altman

    In this Axios column, Drew Altman looks beyond Medicare to what’s at stake for employers and workers in the debate about the government negotiating drug prices.

  • Ten Changes to Watch in Open Enrollment 2022

    Issue Brief

    Even as the ninth annual Open Enrollment period gets underway, the Affordable Care Act (ACA) Marketplaces continue to evolve and important changes are expected. This issue brief discusses what changes to watch out for in the coming enrollment period.

  • For ACA Enrollees, How Much Premiums Rise Next Year is Mostly up to Congress

    Policy Watch

    Most customers with coverage through Affordable Care Act's marketplaces will face big premium increases next year if Congress doesn’t extend the temporary enhanced tax credits included in the American Rescue Plan Act (ARPA) of 2021. If the outcome isn’t clear by summer, fall open enrollment could be a mess.

  • Providing Outreach and Enrollment Assistance: Lessons Learned from Community Health Centers in Massachusetts

    Issue Brief

    As states and communities gear up to provide outreach and enrollment assistance under the ACA, the enrollment assistance experience of health centers in Massachusetts, where a major expansion of health coverage was implemented six years ago, offers valuable lessons that can help to inform current and emerging efforts by health centers and other community-based organizations to reach and enroll millions of low-income, uninsured Americans in health insurance.