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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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  • American Health Care Act (AHCA) Quiz

    Feature

    On May 4, 2017, the US House of Representatives approved the American Health Care Act (AHCA), legislation to repeal and replace the Affordable Care Act (ACA).  On May 24, the Congressional Budget Office scored the latest version of this bill.

  • Key Issues in Children’s Health Coverage

    Issue Brief

    This brief reviews children’s coverage today and examines what is at stake for children’s coverage in upcoming debates around CHIP funding, repeal and replacement of the ACA, and Medicaid restructuring.

  • Insurance Coverage Changes for People with HIV Under the ACA

    Issue Brief

    This brief provides the first national estimates of changes in insurance coverage among people with HIV since the implementation of the ACA. We find that coverage increased significantly for people with HIV due to the ACA’s Medicaid expansion; indeed, increased Medicaid coverage in expansion states drove a nationwide increase in coverage for people with HIV.

  • Listening to Trump Voters with ACA Coverage: What They Want in a Health Care Plan

    Issue Brief

    President Donald Trump and Republicans in Congress are moving to follow through on their campaign promise to repeal and replace the Affordable Care Act (ACA). To gain a better understanding of the personal experiences of Trump voters with health coverage provided through the ACA and the changes they hope to see in the health system moving forward, the Kaiser Family Foundation (KFF) held focus groups in December 2016 with Trump voters in cities in three battleground states (Michigan, Ohio, and Pennsylvania), who had coverage through the Marketplaces or through the Medicaid expansion. This brief and companion video highlight and summarize the range of perspectives expressed at the focus group sessions.

  • In Focus: Listening to Enrollees with Affordable Care Act Coverage Who Voted for Trump

    News Release

    As Republicans in Washington pursue efforts to repeal and replace the Affordable Care Act, what do enrollees in ACA marketplaces and state Medicaid expansions who voted for President Trump want in a health care plan? The Kaiser Family Foundation asked some of them in six focus groups convened in December in Michigan, Ohio, and Pennsylvania…

  • Amid Repeal Debate, Public Views Obamacare More Favorably Than Unfavorably

    News Release

    Large Majorities Want to Continue Federal Funding for Medicaid Expansion; Two Thirds Favor Current Federal Role over Block Grants or Per-Capita Caps As President Trump and Congress weigh repealing the Affordable Care Act, the latest Kaiser Health Tracking Poll finds more Americans viewing the law favorably than unfavorably (48% compared to 42%).

  • How Affordable Care Act Repeal and Replace Plans Might Shift Health Insurance Tax Credits

    Issue Brief

    The Affordable Care Act, also known as Obamacare, and leading replacement proposals rely on refundable tax credits to help individual market enrollees pay for premiums, although the credit amounts are set quite differently. This analysis compares estimates of an average 2020 tax credit amount under the ACA with averages under the House Republicans' American Health Care Act, introduced March 6, 2017.

  • ACA Coverage and the Changing Labor Market: Voices from the Field

    Issue Brief

    This brief highlights voices from adult focus group participants with low and moderate incomes who gained Medicaid or Marketplace coverage following implementation of the ACA. It focuses on work, including work status, the new labor market, job benefits, and the role of ACA coverage for those with non-traditional jobs.