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The ACA MarketplaceS

What We Know about Trump’s $500 ACA Checks and the User Fees Funding Them

This analysis examines the $500 checks that the Trump administration is sending to some Affordable Care Act Marketplace enrollees and the user fees that are paying for them. The checks are going to about 1 million enrollees in the 30 states that rely on the federal HealthCare.gov Marketplace who are not receiving any tax credits this year.

Individual Market Enrollment Declined by 18% Since June 2025

Individual Market Enrollment Fell 18%, Suggesting Continued ACA Marketplace Losses

Enrollment in the individual health insurance market fell by 18%—over 4.6 million people—from 25.2 million in June 2025 to 20.5 million in June 2026. Falling individual market enrollment suggests further decline in ACA Marketplace enrollment this year, since Marketplace enrollees represent the vast majority of individual market coverage. The enrollment decline coincides with the expiration of the enhanced premium tax credits and other policy changes that are expected to reduce 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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  • Chronic Disease and Co-Morbidity Among Dual Eligibles: Implications for Patterns of Medicaid and Medicare Service Use and Spending

    Report

    The health reform law contains provisions that aim to improve the delivery and coordination of services for persons enrolled in both Medicaid and Medicare, known as the dual eligibles. This population includes individuals with some of the most severely disabling chronic conditions. While the higher costs associated with services to dual eligibles is well-known, information on how spending is distributed across these programs is less understood. This study uses linked Medicare and Medicaid data to…

  • Pulling it Together: Forget Math and Science, Teach Civics (Or Why We Need to Bring Back Schoolhouse Rock)

    Perspective

    I am seldom surprised by our poll findings, but this month’s tracking poll produced a doozy.  Twenty-two percent of the American people think the Affordable Care Act has been repealed, and another 26 percent aren't sure.  Those are surprisingly large numbers even with the 52 percent who still know it is the law of the land. How could a repeal "vote" in the House -- however dramatic but still, only symbolic -- be misunderstood as…

  • Medicaid Policy Options for Meeting the Needs of Adults with Mental Illness under the Affordable Care Act

    Issue Brief

    This paper examines the salient issues raised in a November 2010 roundtable discussion of national and state experts convened by the Kaiser Commission on Medicaid and the Uninsured, in partnership with the Bazelon Center for Mental Health Law, to discuss Medicaid policy options available under health reform to help meet the needs of adults with mental illness. The Patient Protection and Affordable Care Act will expand the Medicaid program, offering the opportunity to improve access…

  • How is the Affordable Care Act Leading to Changes in Medicaid Today? State Responses to Five New Options

    Issue Brief

    This policy brief examines how states in every region have responded to five key opportunities available under the health reform law to help them prepare for the significant expansion of Medicaid in 2014. The options covered in the brief include incentives for states to get an early start on the Medicaid coverage expansion; increased federal funding to upgrade Medicaid eligibility systems; money to improve care for beneficiaries with chronic conditions by providing "health home" services;…

  • The Uninsured And The Difference Health Insurance Makes

    Fact Sheet

    This fact sheet describes the characteristics of the uninsured and explains the recent increase in this population. It also examines the difference that health insurance can make and how health reform is expected to cover millions more people.

  • Kaiser Health Tracking Poll: Election 2008 — March 2008

    Poll Finding

    Growing economic worries have led to a sharp rise in the economy as a campaign issue, eclipsing health on voters’ priority list, as well as Iraq. With economic concerns rising, where will health fit in the ongoing presidential campaign?  This March 2008 poll finds that health care plays a role in two ways: as an independent issue, and as part of the voters’ growing concerns about the economy. Health care ranks third as the issue…

  • Pulling It Together: The “R” Word Is Back

    Perspective

    Longer ago than I care to admit, I got my start in health policy at M.I.T. when I wrote a book about health care regulation. The book was about a long forgotten attempt to rationalize the health care system through an elaborate health planning program set up in the seventies under the National Health Planning and Resources Development Act. It established a system of federal, state and regional planning bodies to control health care costs by limiting the supply of…

  • Explaining Health Care Reform: Questions About Health Insurance Exchanges

    Issue Brief

    The Patient Protection and Affordable Care Act (PPACA), signed into law in March 2010, made broad changes to the way health insurance will be provided and paid for in the United States. PPACA created a new mechanism for purchasing coverage called Exchanges, which are entities that will be set up in states to create a more organized and competitive market for health insurance by offering a choice of health plans, establishing common rules regarding the…

  • Pulling it Together: Implementation

    Perspective

    When I was a graduate student at MIT my adviser Jeffrey Pressman was a great political scientist who had just written the seminal book on program implementation.  It was called, simply enough, Implementation, with a subhead that read: "how great expectations in Washington are dashed" (OK, we political scientists study politics too much and are a little cynical at times).  The book literally created a new subfield in political science focusing on program implementation.  This…

  • Explaining Health Care Reform: Key Changes to the Medicare Part D Drug Benefit Coverage Gap

    Issue Brief

    On March 23, 2010, President Obama signed the Patient Protection and Affordable Care Act into law. The health reform law, as modified by the Health Care and Education Reconciliation Act of 2010 which passed the House of Representatives on March 21, 2010 and is under consideration in the Senate, makes several key changes to the Medicare Part D drug benefit to reduce Part D enrollees’ out-of-pocket liability when they reach the coverage gap, known as…