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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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  • Survey of Non-Group Health Insurance Enrollees

    Report

    Executive Summary January 1, 2014 marked the beginning of several provisions of the Affordable Care Act (ACA) making significant changes to the non-group insurance market, including new rules for insurers regarding who they must cover and what they can charge, along with the opening of new Health Insurance Marketplaces (also known as “Exchanges”) and the availability of premium and cost-sharing subsidies for individuals with low to moderate incomes. Data from the Department of Health and…

  • Health Care Costs: A Primer

    Issue Brief

    This primer on health care spending in the United States reviews the growth in health care spending since 1970 and the impact of health care costs on families and employers.

  • Share of Americans With An Unfavorable View of the Affordable Care Act Rises in July; Majority Continues To Want Congress To Improve, Not Repeal, The Law

    News Release

    A Quarter Incorrectly Believes Newly Insured Under ACA Were Enrolled in a Single Government Plan Majority of the Public Believes the Hobby Lobby Decision Will Trigger New Efforts to Deny Health Coverage On Religious Grounds After remaining steady for several months, the share of Americans expressing an unfavorable view of the Affordable Care Act rose to 53 percent in July, up eight percentage points from June, according to the latest Kaiser Health Tracking Poll. The…

  • Workers Wary of Wellness Programs that Tie Premiums to Participation and Outcomes

    News Release

    June Poll Finds No Change in Public's Overall View of the Affordable Care Act Most in Military Households Say VA Problems Are Systemic and Care Not As Good As What Other Americans Receive  As many employers begin to expand their wellness programs under new guidelines set forth by the Affordable Care Act (ACA), the latest Kaiser Health Tracking Poll finds workers oppose programs that make them pay higher premiums if they fail to participate or…

  • Primers on Key Health Care Topics and Programs

    Issue Brief

    The Kaiser Family Foundation maintains a number of primers providing overviews of key health care programs and issues. Written by Foundation staff, each primer provides key data and information that helps illustrate the topic and its relevance for the nation's health care system. Medicaid: A Primer Medicare: A Primer The Uninsured: A Primer Health Care Costs: A Primer How Private Health Coverage Works: A Primer Mental Health Financing in the United States: A Primer The…

  • Pulling It Together: The Falloff in Utilization: “There’s Something Happening, Here, What It Is Ain’t Exactly Clear”

    Perspective

    For as long as I have been in the field, we have seen cycles in health care costs. Per capita health spending would rise, then moderate, then rise gain. My colleague Larry Levitt and I documented this in The Sad History of Health Care Costs and my friend Dr. Jim Mongan called it “the peaks and valleys” of health care costs. We have never been sure whether the "valleys" were the result of government actions, such…

  • Eliminating Racial/Ethnic Disparities in Health Care: What are the Options?

    Issue Brief

     Download PDF Racial and ethnic disparities in health care – whether in insurance coverage, access, or quality of care – are one of many factors producing inequalities in health status in the United States.1  Eliminating these disparities is politically sensitive and challenging in part because their causes are intertwined with a contentious history of race relations in America. Nonetheless, assuring greater equity and accountability of the health care system is important to a growing constituency…

  • Five Key Questions And Answers About Section 1115 Medicaid Waivers

    Issue Brief

    This issue brief provides an overview of what Section 1115 Medicaid waivers are, how they are approved and financed, how states have used them, and how they are impacted by health reform. For many years, Section 1115 waivers have been used by states to test new coverage approaches not otherwise allowed under Medicaid program rules. Some waivers have also raised important policy issues. Since the passage of the health reform law, several states, including California,…

  • Poll Finds Bipartisan Public Support For Creating State Insurance Exchanges Despite Continuing Party Divisions Over the ACA

    News Release

    More Americans Back Than Oppose State Medicaid Expansions But, Like Many Governors, Public Splits Along Party Lines On The Federal Deficit, Public Wants Action But Still Resists Most Cuts and Sacrifices, Especially to Medicare A majority of Americans put the creation of state-based health insurance exchanges at the top of the priority list for health policy in their state this year, according to a survey released today by the Kaiser Family Foundation, the Robert Wood…

  • Understanding Medicaid Hospital Payments and the Impact of Recent Policy Changes

    Issue Brief

    Medicaid payments to hospitals, which include base and supplemental payments, play an important role in hospital finances and can affect beneficiaries’ access to care.This brief provides an overview of Medicaid payments for hospitals and explores the implications of the ACA Medicaid expansion, including changes in uncompensated care, as well as payment policy changes on hospital finances.