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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

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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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  • Silver and Bronze Premium Changes from 2014 to 2015

    Feature

    silverandbronzepremiumchangesfrom2014to2015 Download Source Kaiser Family Foundation analysis of premium data from Healthcare.gov and insurer rate filings to state regulators. For more information see  “Analysis of 2015 Premium Changes in the Affordable Care Act’s Health Insurance Marketplaces” Sep 2014

  • Kaiser Health Tracking Poll: October 2014

    Feature

    In the final Kaiser Health Tracking Poll before the 2014 midterm elections in November, the Affordable Care Act (ACA) continues to be just one of several issues on voters’ minds. Less than 1 in 10 registered voters identify the ACA as the most important issue to their vote, ranking behind the economy, dissatisfaction with government, education and the situation in Iraq and Syria. With the ACA’s second open enrollment period approaching, the poll also finds…

  • Tax Subsidies for Private Health Insurance

    Issue Brief

    This brief describes the different forms of tax assistance for private health insurance, including subsidies offered through the Affordable Care Act's marketplaces and benefits for people who are self-employed or who have employer-based coverage. The brief also provides examples of how the subsidies work and how the amounts may differ by income and type of coverage.

  • Poll: Obamacare Is Not a Big Issue With Midterm Voters

    From Drew Altman

    In this column for The Wall Street Journal’s Think Tank, Drew Altman analyzes recent polling data on the Affordable Care Act and discusses why it will not be a significant factor in next week’s midterm election.

  • What’s in There? The New Health Reform Law and Medicare

    Event Date:
    Event

    As part of an ongoing series to explore what is in the Patient Protection and Affordable Care Act and the Health Care and Education Reconciliation Act of 2010, this May 7 briefing sponsored by the Alliance for Health Reform and the Kaiser Family Foundation examines how the reform law affects Medicare. Changes to Medicare were among the most hotly debated issues as the legislation was developed, and this briefing includes a detailed look at the…

  • A Guide to the Supreme Court’s Decision on the ACA’s Medicaid Expansion

    Issue Brief

    On June 28, 2012, the U.S. Supreme Court issued its decision in the case challenging the Affordable Care Act (ACA). The Court upheld the constitutionality of the ACA's individual mandate, which requires most people to maintain a minimum level of health insurance coverage beginning in 2014. A majority of the Court also found the ACA's Medicaid expansion unconstitutionally coercive of states, while a different majority of the Court held that this issue was fully remedied…

  • How Popular is the Idea of Repealing Health Reform?

    Poll Finding

    With a number of this fall’s candidates for public office advocating an overturn of the new health reform law, this Data Note takes a closer look at the variety of polls that have attempted to measure the public’s support for repeal. Data Note (.pdf) For an updated look on Americans' views on repealing the Affordable Care Act, see: The Public, Health Care Reform, and Views on Repeal January 2011

  • The Cost and Coverage Implications of the ACA Medicaid Expansion: National and State-by-State Analysis

    Report

    A central goal of the Patient Protection and Affordable Care Act (ACA) is to significantly reduce the number of uninsured by providing a continuum of affordable coverage options through Medicaid and new Health Insurance Exchanges. Following the June 2012 Supreme Court decision, states face a decision about whether to adopt the Medicaid expansion. These decisions will have enormous consequences for health coverage for the low-income population. This analysis uses the Urban Institute’s Health Insurance Policy…

  • Addressing Disparities in Health and Health Care — Issues for Reform

    Event

    Marsha Lillie-Blanton, Dr.P.H., Kaiser senior advisor on race, ethnicity and health care, testified before the House Ways and Means Health Subcommittee about the role of health insurance in reducing disparities in health care and in health status. The testimony is part of an ongoing health reform hearing series. Testimony (.pdf) Slides (.ppt)

  • Pulling it Together: The Health Care Industry’s Second Voluntary Effort

    Perspective

    The announcement that health care industry groups plan to put on the table voluntarily a package of proposals to shave $2 trillion off the rate of increase in health spending over the next ten years immediately conjures up the image of the Voluntary Effort or VE launched with similar fanfare in the Carter administration.  Back then the industry used the VE to fend off Jimmy Carter's efforts to aggressively control the costs of hospital care…