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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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  • Covering The ACA May Be Almost As Hard As Implementing It

    From Drew Altman

    This Pulling It Together was adapted from a column I published earlier this week in Politico, with a new introduction added. You can read the original Politico column here. The implementation of the ACA is news and the public will demand information about it. Journalists and news organizations have an obligation to cover this story.  As Kaiser CEO I serve as the publisher of our non-profit news service, Kaiser Health News, and also as the head…

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

    Fact Sheet

    This state report explains how the ACA expands coverage in Mississippi, 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 Mississippi are eligible for Medicaid or financial assistance in…

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

    Fact Sheet

    This state report explains how the ACA expands coverage in New Jersey, 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 New Jersey are eligible for Medicaid or financial…

  • Data Note: Differences In Public Opinion On The ACA’s Contraceptive Coverage Requirement, By Gender, Religion, And Political Party

    Feature

    One of the most politically polarizing elements of the Affordable Care Act (ACA) is the law’s requirement that new private health insurance plans cover prescription contraceptives and services, including all methods approved by the Food and Drug Administration. The rule currently provides an exemption for houses of worship and an “accommodation” for religiously affiliated non-profit employers who object to providing contraceptive coverage; however all for-profit employers that provide health insurance must include this benefit. Over…

  • Legal Analysis of the Supreme Court Ruling on Hobby Lobby

    Feature

    This chart looks at the U.S. Supreme Court decision in the Hobby Lobby case involving the Affordable Care Act's (ACA) contraceptive coverage requirement. It examines how the Court answered four key questions in the case.

  • At Tax Time, No Public Backlash Over Obamacare’s Individual Mandate

    From Drew Altman

    This was published as a Wall Street Journal Think Tank column on April 21, 2015. Tax season has come and gone with no great outbreak of protest about the Affordable Care Act’s least popular provision: the individual mandate. This central element of the ACA was included to help ensure that the individual insurance market would have balanced pools of healthier people and sicker people to help spread insurance risk and keep premiums reasonable. While most of the…

  • Access to Care for the Insured and Remaining Uninsured: A Look at California During Year One of ACA Implementation

    Issue Brief

    California is a bellwether state for understanding the impact of the Affordable Care Act (ACA). Much attention has been paid to enrollment in California's new coverage options, such as the Medicaid expansion (Medi-Cal) and plans sold through ACA marketplaces (Covered California), and to changes in the uninsured from 2013 to 2014. However, less is known about how this coverage has affected people’s access to care and financial security, and why others remain uninsured. This report,…

  • Kaiser Health Tracking Poll – Late Summer 2018: The Election, Pre-Existing Conditions, and Surprises on Medical Bills

    Feature

    The latest Kaiser Health Tracking Poll continues to find pre-existing conditions as a widespread concern with most Americans saying it is very important that the Affordable Care Act’s (ACA) protections for people with pre-existing conditions remain law. With health care costs continuing to be a major topic in the 2018 campaigns, the poll looks at the public’s experiences with unexpected medical bills and finds that this tops a list of possible problems people could face.…