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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.

How Much and Why ACA Marketplace Premiums Are Going Up in 2027

ACA Marketplaces insurers are proposing a median premium increase of 15% in 2027, according to KFF’s updated analysis of 276 insurers with publicly available filings across all 50 states and the District of Columbia. This is the second consecutive year of double-digit premium hikes. Last year’s median nationwide proposed rate change was 18%, and the median finalized rate change was 20%. While this proposed rate change is lower than last year, it represents the second-highest requested rate change since 2018, as premium growth had been relatively flat in this market for several years.

About the ACA

Promotional image for KFF video How Affordable is the Affordable Care Act

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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  • The Potential Side Effects of Halbig

    Perspective

    The Halbig case, if it prevails, would have far-reaching side effects on the Affordable Care Act’s employer mandate and the functioning of the individual insurance market.

  • How Obamacare Is Doing Better But Feeling Worse

    From Drew Altman

    In his latest column for The Wall Street Journal’s Think Tank, Drew Altman explains why even as there are recent positive indicators of the Affordable Care Act’s performance and impact, public opinion about the law has not changed since passage of the law.

  • The Politics of Obamacare: How the Affordable Care Act is Playing in the Midterm Elections

    Event Date:
    Event

    In 2010, many political analysts and journalists cited the debate over, and enactment of, the Affordable Care Act (often called "Obamacare") as one factor that helped spark the conservative Tea Party movement and the Republican takeover of the House in that year's Midterm Elections. Four years later, the law's major coverage provisions have taken effect, resulting in new health coverage for millions of Americans, but public opinion on the law remains deeply divided along partisan…

  • Sen. Mark Pryor Spotlights the Health Law’s Rx for Pre-Existing Illnesses

    From Drew Altman

    In a column for The Wall Street Journal’s Think Tank, Drew Altman explains why Senator Mark Pryor’s new campaign ad features the Affordable Care Act’s protections for people with pre-existing medical conditions, the somewhat forgotten “mega provision” of the law.

  • Health Reform and Medicare: Overview of Key Provisions Tutorial

    Interactive

    This tutorial was produced for kaiserEDU.org, a Kaiser Family Foundation website that ceased production in September 2013. The kaiserEDU.org tutorials are no longer being updated but have been made available on kff.org due to demand by professors who are using the tutorials in class assignments. You may search for other tutorials to view on kff.org. To download this or other tutorials, visit the tutorials archive page.  Slides are available for download using the "Download Slides" link within the…

  • Health Reform: How Will Medicaid Change? Tutorial

    Interactive

    This tutorial was produced for kaiserEDU.org, a Kaiser Family Foundation website that ceased production in September 2013. The kaiserEDU.org tutorials are no longer being updated but have been made available on kff.org due to demand by professors who are using the tutorials in class assignments. You may search for other tutorials to view on kff.org. To download this or other tutorials, visit the tutorials archive page.  Slides are available for download using the "Download Slides" link within the…

  • State Fiscal Conditions and Medicaid: 2014 Update

    Issue Brief

    This issue brief provides an overview of Medicaid financing, Medicaid’s role in state budgets, the relationship between Medicaid and the economy and how the ACA and the Medicaid expansion could affect state budgets.

  • Retiree Health Benefits At the Crossroads

    Report

    This issue brief reviews recent trends and developments in employer-sponsored retiree health coverage and examines the impact of recent legislation, such as the Medicare drug benefit and the Affordable Care Act (ACA) on retiree health coverage. The report describes leading strategies employers have been pursuing or considering to limit costs for retiree health benefits. In addition, the report considers the potential implications of proposals aimed at reducing federal spending for retiree health coverage and costs.

  • The Uninsured And The Difference Health Insurance Makes

    Fact Sheet

    This fact sheet describes the characteristics of the uninsured and explains the recent increase in this population. It also examines the difference that health insurance can make and how health reform is expected to cover millions more people.

  • Pulling It Together: Perspectives on State Health Reform

    Perspective

    This Pulling It Together column is the fourth in my new series. All four so far have dealt with different dimensions of health reform. This time I write about one of my favorite topics, the states. As a former head of an umbrella health and social services agency in a big state responsible for about a third of a state budget and workforce, I have a deep appreciation for state government. It's a level of…