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Affordable Care Act

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.”

new and noteworthy
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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  • The Uninsured and the ACA: A Primer – Key Facts about Health Insurance and the Uninsured amidst Changes to the Affordable Care Act

    Report

    The Uninsured and the ACA: A Primer provides information on how insurance has changed under the ACA and more recent policy changes, how many people remain uninsured, who they are, and why they lack health coverage. It also summarizes what we know about the impact that a lack of insurance can have on the health outcomes and personal finances and the difference health insurance can make in people’s lives.

  • The Health Care Priorities and Experiences of California Residents

    Report

    This survey by the Kaiser Family Foundation and California Health Care Foundation gauges California residents’ views on health care priorities facing the state’s new governor and legislature, including health care affordability, access to care, mental health and substance use treatment, and provider shortages. It also highlights Californians’ experiences in the health care system, as well as views on the Affordable Care Act, Covered California, Medi-Cal, and proposals to advance a single-payer health insurance system in…

  • Poll: Majorities Favor a Range of Options to Expand Public Coverage, Including Medicare-for-All

    News Release

    At a time when debate is beginning about a national Medicare-for-all plan and other approaches to expanding coverage through public programs, this month’s KFF Health Tracking poll examines Americans’ early opinion on a range of options under consideration. The poll finds majority support for four different approaches: 77 percent of the public, including most Republican (69%), favor allowing people between the ages of 50 to 64 to buy health insurance through Medicare; 75 percent, including…

  • KFF Health Tracking Poll – January 2019: The Public On Next Steps For The ACA And Proposals To Expand Coverage

    Feature

    This month's KFF Health Tracking Poll finds that about four in ten are aware of the federal judge's ruling that the ACA is no longer valid but once made aware, most disapprove of the ruling. This poll also examines the public's favorability toward expanding the role of public health care programs, and majorities across partisan groups have a favorable opinion of programs such as Medicare buy-in and Medicaid buy-in, with a national Medicare-for-all being less…

  • Medicaid: What to Watch in 2019 from the Administration, Congress, and the States

    Issue Brief

    Medicaid, the provider of health insurance coverage for about one in five Americans and the largest payer for long-term care services in the community and nursing homes, continues to be a key part of health policy debates at the federal and state level. Important Medicaid issues to watch in 2019 include Medicaid expansion developments amid ongoing litigation about the ACA’s constitutionality as well as Medicaid demonstration waiver activities, including those focused on work requirements and…

  • Abortion Coverage in the ACA Marketplace Plans: The Impact of Proposed Rules for Consumers, Insurers and Regulators

    Issue Brief

    On November 7, 2018, a day after the 2018 midterm elections, the Trump Administration issued a proposed regulation to address “Exchange Program Integrity.” A major element of this proposed rule would affect insurers, consumers, and state insurance regulators in the states that either allow or require abortion coverage. The Affordable Care Act (ACA) allows states to ban plans from offering abortion as a benefit on their Qualified Health Plans (QHPs) and requires plans that cover…

  • If the Affordable Care Act is Struck Down, Nearly All Americans Would Be Affected in Some Way

    News Release

    The Affordable Care Act’s changes to the nation’s health care system are so widespread that nearly all Americans would be affected in some way if a federal judge’s decision ruling the entire law unconstitutional is upheld, according to a new analysis from KFF (the Kaiser Family Foundation). While the changes to the individual insurance market – including protections for people with pre-existing conditions, creation of insurance marketplaces, and premium subsidies for low and modest income…