Affordable Care Act

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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  • 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.

  • Wisconsin’s BadgerCare Program and the ACA

    Fact Sheet

    This fact sheet provides an overview of changes to BadgerCare, Wisconsin's 1115 waiver demonstration project, and how it relates to the Affordable Care Act's Medicaid expansion.

  • Kaiser Health Tracking Poll: February 2014

    Feature

    The February 2014 Kaiser Health Tracking Poll finds that those who are most likely to be customers in the Affordable Care Act (ACA)’s new insurance exchanges (the uninsured and those who purchase their own coverage) are more likely to prefer less costly plans with narrow provider networks over more expensive plans with broader networks, while the public overall has the opposite preference. Overall opinion of the ACA remains about the same as it has been…

  • 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…

  • Medicaid Enrollment Under the Affordable Care Act: Understanding the Numbers

    Issue Brief

    This issue brief walks through data recently released from Health and Human Services (HHS) and what it can and cannot tell us about the number of people that have applied for Medicaid since open enrollment for health insurance marketplaces began, how many have enrolled, and what the role of the ACA is in recent Medicaid coverage gains.

  • A Perilous Gap in Health Insurance Literacy

    From Drew Altman

    In this column for The Wall Street Journal’s Think Tank, Drew Altman discusses how progress in expanding coverage requires greater attention to the problem of health insurance literacy.

  • Voters In Competitive Senate States Report Seeing More ACA Ads, Especially Ads Opposed To The Law

    Kaiser Health Tracking Poll: August-September 2014

    Feature

    The latest Kaiser Health Tracking Poll includes a special look at registered voters’ views and what role, if any, the the Affordable Care Act might be playing in the upcoming midterm election. Partisan divisions on the law are as deep as ever, not only when it comes to overall opinion but also in the public’s perception of how the law has impacted their own families and the next steps they want Congress to take.

  • A Perilous Gap In Health Insurance Literacy

    News Release

    In his latest column for The Wall Street Journal’s Think Tank, A Perilous Gap In Health Insurance Literacy, Drew Altman discusses how progress in expanding coverage requires greater attention to the problem of health insurance literacy. All previous columns by Drew Altman are available online.