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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.”

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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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  • Kaiser Health Tracking Poll: February 2016

    Feature

    The February Kaiser Health Tracking Poll finds Americans are divided on possible changes to the current health care system with 36 percent of Americans saying policymakers should build on the existing law to improve affordability and access to care, 16 percent saying they would like to see the health care law repealed and not replaced, 13 percent saying the current law should be repealed and replaced with a Republican-sponsored alternative, and 24 percent saying the…

  • Medicare-for-All vs. Single Payer: The Impact of Labels

    From Drew Altman

    In this column for The Wall Street Journal’s Think Tank, "Medicare-for-All vs. Single Payer: The Impact of Labels", Drew Altman uses new polling on a Medicare-for-all or single payer health system to explain how what you call a health reform plan can substantially affect the public's response.

  • Medicaid Expansion Waivers: What Will We Learn?

    Issue Brief

    Section 1115 waivers authorize research and demonstration projects that, in the view of the Health and Human Services (HHS) Secretary, further the purposes of the Medicaid program. The ACA implemented new requirements for these waivers, including that states must have a publicly available, approved evaluation strategy. This brief examines some of the major research questions and hypotheses relevant to the federal and state evaluations of Medicaid expansion Section 1115 waivers and explores key challenges that…

  • The Role Of Health Care In The 2020 Election

    Interactive

    This interactive map highlights what voters from the 2020 general election and Democratic primary voters said about health care as they vote, based on KFF's analysis of the state-level AP VoteCast data collected in most states. The primary election data also includes state-specific charts highlighting where health care ranks as issue, views about a single-payer health plan and a public option, and other health care findings from the AP VoteCast data with key demographic breakouts.

  • Implications of the Expiration of Medicaid Long-Term Care Spousal Impoverishment Rules for Community Integration

    Issue Brief

    To financially qualify for Medicaid long-term services and supports (LTSS), an individual must have a low income and limited assets. In response to concerns that these rules could leave a spouse without adequate means of support when a married individual needs LTSS, Congress created the spousal impoverishment rules in 1988. Originally, these rules required states to protect a portion of a married couple’s income and assets to provide for the “community spouse’s” living expenses when…

  • Two Medicaid-Related Initiatives That Help Promote Long-Term Care at Home and in the Community, Rather Than in Institutions, Are Set To Expire at the End of December

    News Release

    Two initiatives that for years have helped shift Medicaid enrollees away from nursing homes in favor of long-term care at home and in the community face year-end deadlines that could undercut that trend, according to two new KFF issue briefs. While there does not appear to be substantive disagreement over the initiatives like there is with many other federal health programs, their expiration is coming at a time when Congress is engaged in a contentious…

  • Surprise Bills Often Hit in Emergencies

    From Drew Altman

    In an Axios column, Drew Altman previews new data highlighting that people with critical health issues are especially vulnerable to these bills.