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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

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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 Washington State Health Care Landscape

    Fact Sheet

    This fact sheet provides an overview of population health, health coverage, and health care delivery in Washington under the Affordable Care Act (ACA).

  • Webinar for Journalists: Results from Survey of People Who Bought Their Own Health Insurance Under the ACA

    Event Date:
    Event

    The Kaiser Family Foundation held a reporters-only webinar at 11 a.m. ET on Thursday, June 19 to release its new Survey of Non-Group Health Insurance Enrollees, providing a first look at people buying their own health insurance following the implementation of the Affordable Care Act. The first in a series, the new survey captures the previous insurance status of marketplace enrollees and the self-reported health status of enrollees in ACA-compliant coverage purchased on or off…

  • Why the Political Heat on the ACA Is Cooling

    From Drew Altman

    In his latest column for The Wall Street Journal’s Think Tank, Drew Altman explores some early indicators that the political waters may be calming for the Affordable Care Act.

  • How is the ACA Impacting Medicaid Enrollment?

    Issue Brief

    This issue brief provides an overview of new Medicaid enrollment data released by Centers for Medicare and Medicaid Services and its interpretation to assess the influence of the ACA on Medicaid enrollment.

  • The Stakes Beyond the Halbig Lawsuit

    From Drew Altman

    In a column for The Wall Street Journal’s Think Tank, Drew Altman discusses if the legal court cases about whether the government can provide tax credits to people in the Affordable Care Act’s federal health exchanges will be perceived by the American people as a legitimate legal question or as more inside-Washington politics.

  • Children’s Health Coverage: Medicaid, CHIP and the ACA

    Issue Brief

    This brief provides an overview of children’s coverage leading up to the implementation of the Affordable Care Act (ACA), a review of changes for children included in the ACA, and a look at issues leading up to the reauthorization of the CHIP program.

  • Those Long Lines To Enroll In The ACA

    From Drew Altman

    In this Policy Insight, Kaiser Family Foundation President and CEO Drew Altman discusses the need for community based outreach to enroll the long term uninsured.

  • An Introduction to Medicaid and CHIP Eligibility and Enrollment Performance Measures

    Issue Brief

    The Centers for Medicare & Medicaid Services (CMS) recently established 12 new Medicaid and CHIP eligibility and enrollment performance indicators for states to report beginning in October 2013. These indicators provide insight into the performance of new eligibility and enrollment policies established under the Affordable Care Act (ACA). In December 2013, CMS released initial reports for a subset of the indicators. This brief provides an overview of the new performance indicators; the initial data; and…