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The ACA Marketplace

2025 KFF Marketplace Enrollees Survey

In 2025, about one in three ACA enrollees said they would be “very likely” to look for a lower-premium Marketplace plan If their premium payments doubled.

Cost Concerns and Coverage Changes: A Follow-Up Survey of ACA Marketplace Enrollees

Following the expiration of the enhanced premium tax credits for people with Affordable Care Act (ACA) Marketplace plans, a new KFF follow-up survey of the same Marketplace enrollees KFF surveyed in 2025 finds half (51%) of returning enrollees say their health care costs are “a lot higher” this year compared to last year, including four in 10 who specifically say their premiums are “a lot higher.”

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POLLING

Tracking the Public’s Views on the ACA

While overall opinion of the Affordable Care Act has been more favorable than unfavorable since 2017, there remain deep partisan divides. See how public opinion on the ACA has changed from the inception of the law to the present. This interactive tool highlights key moments when views shifted and trends based on party identification, income, age, gender, and race/ethnicity.
DATA

Marketplace Enrollment is Down in 2026—But All of the Data Isn’t in Yet

ANALYSIS

Higher Premium Payments or Higher Deductibles: The ACA's Tradeoffs

QUIZ

Test Your Knowledge of the Affordable Care Act

ANALYSIS

Competition Increased in Individual Market But Fell in Fully Insured Group Markets

Timely insights and analysis from KFF staff

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  • July Kaiser Health Tracking Poll: Public Still Divided on ACA, Few Believe the Law Will Improve Consumer Protections

    Perspective

    Overall public opinion on the health reform law remains unchanged this month, with 42 percent of Americans holding a favorable view and 43 percent an unfavorable view. Even though previous Health Tracking polls have consistently shown that consumer protections were one of the least controversial and most widely supported provisions of the health reform law, the July poll finds that just one in five Americans think the law will lead to improvements in consumer protections…

  • Health Insurance Exchange Development: Innovation in the States

    Event Date:
    Event

    Under health reform, state-based health insurance exchanges are a mechanism to buy private insurance beginning in 2014. Through panel discussions with state leaders and stakeholders, this briefing, jointly sponsored by the Bipartisan Policy Center (BPC), the Kaiser Family Foundation and the University of Virginia's Batten School of Leadership, explored states’ progress on the exchanges and identified next steps. Agenda (.pdf) Speaker Biographies (.pdf)

  • Remember the People Outside of the Exchanges

    Perspective

    There has been a substantial amount of focus on the recently released draft regulations governing state-based health insurance exchanges under the Affordable Care Act (ACA). And that's appropriate, since the exchanges have the important roles under reform of providing consumers with easier access to insurance and facilitating tax credits and cost-sharing subsidies that make coverage more affordable. But, as central as exchanges will likely be, it's important to remember that there are other key provisions that help…

  • The Innovation Center: How Much Can It Improve Quality and Reduce Costs – and How Quickly?

    Event Date:
    Event

    The new Center for Medicare and Medicaid Innovation (CMMI) seeks to test new health care payment and service delivery models that can potentially enhance quality of care for beneficiaries while reducing costs. How is the agency planning to administer its $10 billion in funding? What early projects is the center undertaking? Is there private sector evidence that its goals can be achieved? What will happen to existing innovations now being rolled out by providers and…

  • Pulling It Together: Writing Regulations

    Perspective

    Not since Geraldo Rivera revealed the secret contents of Al Capone's vault on national TV in the mid-80s, or more recently, sports fans awaited the LeBron James "decision" about where he would play next, have we so anxiously awaited anything as much as the draft health exchange regulations just published by HHS. Well, okay, I exaggerate for effect, but the regulations on health insurance exchanges were anxiously awaited by the health policy community. The hallmark…

  • What is a Mini-Med Plan?

    Perspective

    One of the early insurance market changes in the Affordable Care Act (ACA) phases out caps that some insurance plans impose on the annual dollar amount of benefits they will cover. Plans issued or renewed after September 23, 2010 cannot have annual limits of less than $750,000, and the threshold goes up to $1.25 million in 2011. Annual dollar limits of any kind are prohibited starting in 2014. The federal government has issued waivers from…

  • Kaiser Health Tracking Poll — July 2011

    Feature

    Health care, and particularly Medicare and Medicaid, continue to play a role in the national discussion over the federal budget deficit. In the midst of this debate, the latest Kaiser Health Tracking poll finds that Americans of all political stripes see a role for both spending reductions and tax increases as part of an overall deficit reduction strategy. Still, few are willing to support major spending reductions in Medicare, and a large majority believes the…

  • Explaining Health Reform: Uses of Express Lane Strategies to Promote Participation in Coverage

    Issue Brief

    Under the Patient Protection and Affordable Care Act (ACA), millions of uninsured adults and children will gain eligibility for Medicaid or health coverage through new health insurance Exchanges beginning in 2014. The law calls upon states to develop simple and streamlined processes for establishing, verifying, and updating eligibility for Medicaid, the Children's Health Insurance Program and federal subsidies for Exchange coverage. This issue brief examines how states can employ "express lane" principles in designing systems…

  • Explaining Health Reform: The New Rules for Determining Income Under Medicaid in 2014

    Issue Brief

    To provide individuals and families access to affordable, high-quality health care, the Patient Protection and Affordable Care Act (ACA) expands Medicaid to cover low-income adults and children with incomes up to 133 percent of the poverty line. Millions of low-income parents, non-disabled adults who do not have dependent children (and who are generally ineligible for Medicaid today except in a small number of states) and, in some instances, children now covered through the Children’s Health…

  • Five Key Questions And Answers About Section 1115 Medicaid Waivers

    Issue Brief

    This issue brief provides an overview of what Section 1115 Medicaid waivers are, how they are approved and financed, how states have used them, and how they are impacted by health reform. For many years, Section 1115 waivers have been used by states to test new coverage approaches not otherwise allowed under Medicaid program rules. Some waivers have also raised important policy issues. Since the passage of the health reform law, several states, including California,…