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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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  • How Will the Uninsured in Vermont Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in Vermont, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in Vermont are eligible for Medicaid or financial assistance in…

  • 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.

  • Majorities Across Party Lines Support Investing More Money in Zika Research and Preventing the Virus’ Spread

    News Release

    Democrats More Favorable to ACA in June, Leading to 44% Unfavorable, 42% Favorable Overall Split Majorities of the public say the United States should invest more money in Zika research and in preventing its spread in this country, the latest Kaiser Health Tracking Poll finds. More than seven in 10 people, including majorities of Democrats, Republicans, and independents, say they support investing in Zika research and to prevent its spread. About two thirds of the…

  • Republican Voters Have Moved On from Hating the ACA

    From Drew Altman

    In this Axios column, Drew Altman analyzes KFF’s tracking poll and shows that the ACA is now yesterday’s issue for Republicans. They have shifted their sights to Medicare-for-all...at least for this election season.

  • The Wisconsin Health Care Landscape

    Fact Sheet

    Wisconsin has long been a leader among states in expanding coverage to its low-income residents since even before the major coverage provisions of the Affordable Care Act (ACA) took effect on January 1, 2014. While Governor Scott Walker decided not to adopt the Medicaid expansion, thousands of previously uninsured Wisconsinites have enrolled in health coverage through the state’s broad BadgerCare Medicaid waiver, which increases coverage to low-income populations, and through the new Health Insurance Marketplace.…

  • Insurance Markets in a Post-King World

    Perspective

    This perspective addresses how insurance markets might respond if the US Supreme Court sides with the plaintiffs in the King v. Burwell case. The case challenges the legality of premium and cost-sharing subsidies for low- and middle-income people buying insurance in states where the federal government rather than the state is operating the marketplace under the Affordable Care Act (ACA).

  • 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.

  • Who Are the 2018 Health Care Voters?

    Interactive

    This interactive allows users to examine the demographic profile of health care voters and compare them to voters who do not feel as strongly about a candidate’s position on health care.