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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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  • Pulling it Together: Anticipating the Polls about Health

    Perspective

    Tuesday, February 2nd marked a milestone of sorts in the health reform debate: there was no story on health reform in the New York Times (national edition).  I haven't done a study, but as a professional New York Times (NYT) reader, I am virtually certain that this is the first day in over a year without a story in the NYT on health reform. The day of silence in the NYT is reflective of the…

  • Kaiser Health Tracking Poll — February 2010

    Feature

    The February Kaiser Health Tracking Poll finds the public still split on health care reform legislation, with 43 percent in favor and 43 percent opposed. However, the poll also finds that majorities of Americans of all political leanings support several provisions in the health reform proposals in Congress and most attribute delays in passing the legislation to political gamesmanship rather than policy disagreements. The poll finds that at least six of every 10 Republicans, Democrats…

  • Pulling It Together: The Message from Massachusetts

    Perspective

    The Massachusetts special election has roiled the political world and profoundly affected the prospects for health reform just when it looked like passage was a lock.  Efforts are underway to put health reform legislation back together again on Capitol Hill, but not since powerful Ways and Means Chair Wilbur Mills fell into the Tidal Basin with Fanne Foxe in 1974, halting momentum on a deal on health reform that seemed ready to happen, has something this unexpected so affected…

  • Americans Are Divided About Health Reform Proposals Overall, But the Public, Including Critics, Becomes More Supportive When Told About Key Provisions

    News Release

    MENLO PARK, Calif. – A new Kaiser Family Foundation poll finds that Americans are divided over congressional health reform proposals, but also that large shares of people, including skeptics, become more supportive after being told about many of the major provisions in the bills. The January Kaiser Health Tracking Poll, conducted before the Massachusetts Senate vote, finds opinion is divided when it comes to the hotly debated legislation, with 42 percent supporting the proposals in…

  • Health Reform: An Overview Tutorial

    Interactive

    This tutorial was produced for kaiserEDU.org, a Kaiser Family Foundation website that ceased production in September 2013. The kaiserEDU.org tutorials are no longer being updated but have been made available on kff.org due to demand by professors who are using the tutorials in class assignments. You may search for other tutorials to view on kff.org. To download this or other tutorials, visit the tutorials archive page.  Slides are available for download using the "Download Slides" link within the…

  • Health Reform and Medicare: Overview of Key Provisions Tutorial

    Interactive

    This tutorial was produced for kaiserEDU.org, a Kaiser Family Foundation website that ceased production in September 2013. The kaiserEDU.org tutorials are no longer being updated but have been made available on kff.org due to demand by professors who are using the tutorials in class assignments. You may search for other tutorials to view on kff.org. To download this or other tutorials, visit the tutorials archive page.  Slides are available for download using the "Download Slides" link within the…

  • Pulling It Together: The Repeal Trap?

    Perspective

    Almost a year into an often acrimonious health reform debate, we stand poised for near certain passage of historic health reform legislation. Yet, somewhat perplexingly, there's now talk about whether a law that has not even been enacted might actually be repealed and reporters have been calling asking what the chances of repeal may be. I have a very hard time imagining any scenario for repeal unfolding. Calls for repeal have much to do with…

  • Kaiser Health Tracking Poll — January 2010

    Feature

    The January Kaiser Health Tracking Poll finds that Americans are divided over congressional health reform proposals, but also that large shares of people, including skeptics, become more supportive after being told about many of the major provisions in the bills. The poll, conducted before the Massachusetts Senate vote, finds opinion about the legislation is split, with 42 percent supporting the proposals, 41 percent opposing them and 16 percent withholding judgment. But majorities reported feeling more…

  • Massachusetts Special Election Poll

    Poll Finding

    The Foundation, as part of The Washington Post/Kaiser Family Foundation/Harvard University partnership series, conducted a poll to better understand how health care played into the mix of issues and frustrations that brought voters to the polls in the Massachusetts special election for U.S. Senate. The poll was conducted among a random sample of 880 voters in the Massachusetts special election on January 19, 2010 and also interviewed were 242 Massachusetts adults who did not participate…

  • Health Care Reform: A Retrospective Tutorial

    Interactive

    This tutorial was produced for kaiserEDU.org, a Kaiser Family Foundation website that ceased production in September 2013. The kaiserEDU.org tutorials are no longer being updated but have been made available on kff.org due to demand by professors who are using the tutorials in class assignments. You may search for other tutorials to view on kff.org. To download this or other tutorials, visit the tutorials archive page.  Slides are available for download using the "Download Slides" link within the…