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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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  • How Will Uninsured Children Be Affected By Health Reform?

    Issue Brief

    This brief examines uninsured children and how they could be affected by health reform, including estimates of how many might qualify for coverage under a Medicaid expansion, how many would be eligible for subsidies and how many would not be eligible for such help. Issue Brief (.pdf)

  • New Study Examines the Current Spending on Health Care for the Uninsured and Projects the Cost of Additional Medical Care if the Population Were Insured

    Report

    This study examines the current spending on care for the uninsured and projects additional medical spending if the population had health insurance coverage. The study finds that the uninsured will spend $30 billion out-of-pocket for health care in 2008 while receiving $56 billion in uncompensated care, three quarters of which will be from government sources. The study is an update of a previous Kaiser study and also projects the additional cost to the nation’s health…

  • Health Care Reform Newsmaker Series: Sen. Orrin Hatch

    Event Date:
    Event

    This May 7, 2009 webcast features Sen. Orrin Hatch (R-Utah), senior member of the Senate Committee on Finance, and ranking Republican on the panel’s Subcommittee on Health Care. The briefing was part of the Health Care Reform Newsmaker series sponsored by the Kaiser Family Foundation, Families USA and the National Federation of Independent Business. The reporters-only briefings, designed to inform the public about prospects and options for health reform, feature a short presentation by an…

  • Testimony Related to Health Reform

    Event Date:
    Event

    The Kaiser Family Foundation is frequently invited to provide expert testimony before Congress on key health care issues. Testimony At NAIC Exchanges Subgroup Public HearingKaiser Family Foundation Vice President Gary Claxton, who directs the Foundation's Marketplace Policy Project, testified July 22, 2010, before the National Association of Insurance Commissioners' Exchanges (B) Subgroup established by the health reform law. Private Long-Term Care Insurance and the Challenge of Closing the Long-Term Care Funding GapAt a June 3…

  • How Will Uninsured Parents Be Affected By Health Reform?

    Issue Brief

    This brief examines uninsured parents and how they could be affected by health reform, including estimates of how many might qualify for coverage under a Medicaid expansion, how many would be eligible for subsidies and how many would not be eligible for such help. Issue Brief (.pdf)

  • Pulling it Together: An Actuarial Rorschach Test

    Perspective

    Drew Altman, Larry Levitt, Gary Claxton My colleagues have worked on this column with me and I invited them to join me as authors. As with pretty much every other discussion of health care going back to the days of Roosevelt, the great reform debate of 2009 (and now 2010) has been distilled into an ideological battle over the role of government. A government-sponsored "public option" has been off the table for a while now,…

  • Pulling it Together: REPOR(t)

    Perspective

    In today’s column I investigate a somewhat lighter topic than my last column on micro-simulation modeling: What was the impact of shows like Jon Stewart’s The Daily Show and Stephen Colbert’s The Colbert Report on the health reform debate?  Who among us has not wondered about the answer to this question?  Please don’t answer that. I should start by acknowledging that I am a frequent but not religious viewer of these shows, and believe that…

  • Massachusetts’ Demonstration to Integrate Care and Align Financing for Dual Eligible Beneficiaries

    Issue Brief

    Massachusetts is the first state to finalize a memorandum of understanding (MOU) with the Centers for Medicare and Medicaid Services (CMS) to test CMS's capitated financial alignment model for beneficiaries who are dually eligible for Medicare and Medicaid, with enrollment beginning on April 1, 2013. Starting in 2013, CMS will implement a three-year multi-state demonstration to test new service delivery and payment models for people who are eligible for both federal health programs. Massachusetts' demonstration…

  • Pulling It Together: Health IN the Economy

    Perspective

    I am writing this Pulling It Together column about this one chart and its potential interpretations and implications. Source: Key Findings: Kaiser Health Tracking Poll: Election 2008 -- April 2008, Kaiser Family Foundation, April 2008. This chart from our most recent tracking poll shows the economy rising as a political issue and health care falling, with Iraq in the middle. Findings from other polling groups will show the same thing for as long as the economy…

  • Covering the Uninsured: Options for Reform

    Issue Brief

    Download PDF Key Facts on the Uninsured In 2007, 45 million nonelderly people in the United States lacked health coverage More than eight in ten uninsured people (81%) come from working families About two-thirds of the nonelderly uninsured are from low-income families (income below 200% of poverty, about $42,400 for a family of 4 in 2007) More than one in three people (35%) living in poverty are uninsured, compared with one in twenty people (5%)…