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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

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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  • Insurance Coverage Changes for People with HIV Under the ACA

    Issue Brief

    This brief provides the first national estimates of changes in insurance coverage among people with HIV since the implementation of the ACA. We find that coverage increased significantly for people with HIV due to the ACA’s Medicaid expansion; indeed, increased Medicaid coverage in expansion states drove a nationwide increase in coverage for people with HIV.

  • Views of Governors and Insurance Commissioners on ACA Repeal and Changes to Medicaid: Responses to a Congressional Request for State Input on Health Reform

    Issue Brief

    This brief summarizes responses from governors and insurance commissioners in 35 states, including DC, to a request from members in the House of Representatives for state input on health care reforms. These responses provide insight into state leaders’ views on repeal and replacement of the ACA and the changes Congress is considering making to the financing and structure of Medicaid. It finds that respondents have mixed views on the ACA and potential repeal and replacement…

  • Findings from the Field: Enrollment and Consumer Assistance in Four States in Year Three of the ACA

    Issue Brief

    Based on case studies and focus groups, this brief reviews experiences with Medicaid and Marketplace enrollment, renewal, and consumer assistance in Colorado, Connecticut, Kentucky, and Washington as of Spring 2016. These states implemented the Medicaid expansion and established a state-based Marketplace (SBM) in 2014. This brief builds on previous reports that examined states’ preparation for implementation prior to the initial ACA open enrollment period and their experiences after completion of the first and second open…

  • Medicaid: What We Learned From the Recent Debate and What to Watch for in September 2017

    Issue Brief

    The inclusion of major Medicaid changes in both the American Health Care Act (AHCA) that passed in the House and the Better Care Reconciliation Act (BCRA) considered in the Senate revealed that is hard to gain consensus on significant cuts and reforms to Medicaid. Medicaid has broad general support and intense support from special populations served by the program. In addition, proposed changes would have different implications across states due to significant program variation across…

  • How to Keep ACA Stabilization Narrow

    From Drew Altman

    In this column for Axios, Drew Altman discusses the main challenges for members and media coverage as members take up the issue of stabilization of the Affordable Care Act.

  • New Analysis Details Impact on Residents in Different States If the U.S. Supreme Court Rules for Challengers in King v. Burwell

    News Release

    The U.S. Supreme Court is expected to rule this month in the King v. Burwell case that challenges whether low- and moderate-income Americans are eligible for subsidies to help pay for insurance if they live in states where the federal government, rather than the state, established its new insurance marketplace under the Affordable Care Act (ACA). Using 2015 enrollment data released today, a new Kaiser Family Foundation analysis and interactive map breaks out how residents…

  • Early Analysis In Eleven States Finds Modest Increases For ACA Silver Plans

    News Release

    A Kaiser Family Foundation analysis of Affordable Care Act (ACA) plans in major metropolitan areas in 11 states where data are available, including the District of Columbia, finds that preliminary 2016 premiums for benchmark silver plans grew modestly, but increased more sharply this year than last year. The average increase for benchmark plans across the cities is 4.4 percent for 2016 compared with a 2 percent increase nationwide in 2015.

  • Renewals in Medicaid and CHIP: Implementation of Streamlined ACA Policies and the Potential Role of Managed Care Plans

    Issue Brief

    This brief reviews the new renewal requirements for Medicaid and CHIP that are designed to maintain continuity of coverage for eligible individuals. It provides an overview of state implementation of the new renewal policies and considers the potential role managed care plans can play in supporting renewals. Key findings include: some aspects of the simplified renewal policies have not yet been fully implemented due to a range of challenges; some states, including Washington and Rhode…

  • Poll Finds 62% of Americans Approve of the Supreme Court’s Decision to Continue Allowing ACA Health Insurance Subsidies in All States, While 32% Disapprove

    News Release

    Public’s View of the Health Care Law Remains Nearly Evenly Divided Immediately Following King v. Burwell Ruling Nearly Eight in 10 Americans Expect More Major Battles about the ACA in the Future Just over six in 10 Americans (62%) say they approve of the U.S. Supreme Court’s decision last week to continue allowing low- and moderate-income people in all states to be eligible for government subsidies to buy health plans through Affordable Care Act (ACA)…