Affordable Care Act

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

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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  • Open Enrollment: Insights from Medicare for Health Insurance Marketplaces

    News Release

    In the latest post in the Policy Insights series, Tricia Neuman draws on the experiences of Medicare beneficiaries during Medicare’s annual enrollment period to consider whether consumers with health insurance coverage through the Affordable Care Act’s new marketplaces will shop for a better deal during their open enrollment season. Previous columns in the Policy Insights series are also available on kff.org.

  • Medicare-for-All’s Popularity May Have Peaked

    From Drew Altman

    In this Axios column, Drew Altman looks at the polling trend on support for Medicare-for-all suggesting it may have crested as criticism has mounted. He considers what it means for the Democratic primary and continued debate for Medicare-for-all and other expansion proposals.

  • Sexually Transmitted Infections (STIs): An Overview, Payment, and Coverage

    Fact Sheet

    More people have health insurance than ever before under the Affordable Care Act (ACA), which emphasizes preventive care, including no-cost HIV and STI counseling and screening for recommended populations. This fact sheet examines trends and disparities in STI prevalence, reviews the STI screening and preventive care coverage policies for private insurance and public programs, and discusses coverage gaps and confidentiality concerns in the provision of these services.

  • Health Issues and the Election Quiz

    Feature

    Test your knowledge about health facts, policy issues and proposals that are emerging among the 2020 presidential candidates. The 10 questions focus on health issues in the 2020 election, including: health care costs, prescription drug prices, the Affordable Care Act and changes in health insurance coverage, reproductive health, and Medicare-for-all and public option proposals.

  • Medicaid and Children’s Health Insurance Program Provisions in the New Health Reform Law

    Issue Brief

    This brief compares the Medicaid and Children's Health Insurance Program provisions in the new health reform law with pre-reform law governing those programs. The analysis focuses on Medicaid coverage and financing changes; how Medicaid and CHIP will interface with a new health insurance exchange and other Medicaid benefits and access changes. Overall, the new law includes an individual requirement to obtain health insurance, a significant Medicaid expansion and subsidies to help low-income individuals buy coverage…

  • New NPR/Kaiser/Harvard Poll Examines Public’s Views of the Role of Health Care Interest Groups in the Health Care Debate

    Poll Finding

    This survey conducted jointly by NPR, the Kaiser Family Foundation, and the Harvard School of Public Health examines the public’s views and opinions of the role of health care interest groups in the ongoing federal health care debate. The survey examines whether people feel their views are represented in the ongoing legislative process and their level of trust in different groups. The survey is part of a series of projects about health-related issues by NPR,…

  • Survey of Health Insurance Agents: Assessing Trends in the Individual and Small Group Insurance Markets

    Poll Finding

    This nationally representative survey of 500 health insurance agents and brokers working in the individual and small group markets explores their outlook on market trends and views on the Affordable Care Act (ACA). The survey finds that many agents are seeing steep increases in premiums and deductibles for individuals and small businesses purchasing health insurance. When asked to estimate what they expect to be the typical premium increase in 2012 based on what they have…

  • Kaiser Health Tracking Poll – June 2009

    Poll Finding

    The June Kaiser Health Tracking Poll finds remarkable stability in public opinion on health reform as Congressional committees begin to hone in on the details of their health reform bills and debate intensifies. A solid majority of the American people continue to believe that health reform is more important than ever given the country’s economic problems. A solid majority of the American people continue to believe that health reform is more important than ever given…