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The ACA MarketplaceS

How Has Marketplace Enrollment Changed Across States in 2026?

Following several years of rapid enrollment growth in the ACA Marketplaces that corresponded with temporary enhanced premium tax credits, enrollment fell for the first time in seven years in 2026, when those tax credits expired. Every state except for New Mexico saw a drop in Marketplace enrollment from 2025 to 2026. State-based Marketplaces that run their own enrollment platforms, including those that partially offset the enhanced tax credits, generally saw lower drops in enrollment.

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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  • 10 Essential Facts About Medicare’s Financial Outlook

    Issue Brief

    Medicare, the nation’s federal health insurance program for 57 million people age 65 and over and younger people with disabilities, often plays a major role in federal health policy and budget discussions. Medicare is likely to be back on the federal policy agenda as Congress debates repealing and replacing the ACA, and also if policymakers turn their attention to reducing entitlement spending as part of efforts to reduce the growing federal budget deficit and debt.…

  • 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…