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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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  • Employer-Sponsored Family Health Premiums Rise a Modest 4 Percent in 2013, National Benchmark Employer Survey Finds

    News Release

    Annual premiums for employer-sponsored family health coverage reached $16,351 this year, up 4 percent from last year, with workers on average paying $4,565 toward the cost of their coverage, according to the Kaiser Family Foundation/Health Research & Educational Trust (HRET) 2013 Employer Health Benefits Survey. This year's rise in premiums remains moderate by historical standards. The 15th annual Kaiser/HRET survey of more than 2,000 small and large employers provides a detailed picture of the status and trends in employer-sponsored health insurance costs and coverage.

  • Kaiser Health Tracking Poll: August 2013

    Feature

    As outreach efforts for enrollment in the health insurance marketplaces created by the Affordable Care Act (ACA) increase over the summer, the August Kaiser Health Tracking Poll finds that the public’s most trusted sources of information on the law are not necessarily the ones people are most likely to be hearing from.

  • Managing a High Performing Medicaid Program

    Report

    This report discusses key responsibilities that the federal government and states hold for managing the Medicaid program and identifies the key issues and challenges states face as they transform the way they do business and achieve key national goals. The paper relies on an extensive review of federal and state administrative responsibilities drawn from statute, regulation, and relevant literature, coupled with discussions with six current Medicaid directors.

  • Health Affairs Article: Medicaid Expansion: Chronically Homeless Adults Will Need Targeted Enrollment and Access to a Broad Range of Services

    Issue Brief

    Homeless adults may gain access to health services under the Affordable Care Act’s Medicaid expansion, which takes effect in 2014. This study, published in Health Affairs, analyzed the health coverage, health status, and health services use of 725 chronically homeless adults with disabilities in eleven cities in the United States.

  • Getting into Gear for 2014: Insights from Three States Leading the Way in Preparing for Outreach and Enrollment in the Affordable Care Act

    Issue Brief

    This report provides insight into preparations in Maryland, Nevada, and Oregon -three states that have established a State-based Marketplace, are moving forward with the Medicaid expansion, and are among the states leading the way in preparing for outreach and enrollment. e findings provide an overview of where these three states are in establishing their Marketplaces; preparing for the Medicaid expansion; planning for marketing, outreach and enrollment; and establishing enrollment assistance resources. It highlights the challenges the states have encountered and overcome, the successes they have achieved, and provides key lessons that may help inform implementation efforts moving forward.

  • Medicaid Expansion Through Marketplace Premium Assistance

    Fact Sheet

    This fact sheet compares the two Medicaid premium assistance authorities (state plan option and demonstration waiver) and identifies key beneficiary protections in Medicaid expansion premium assistance programs.

  • Nine in Ten Uninsured Unaware that the Affordable Care Act’s Second Open Enrollment Period Starts in November

    News Release

    Most of Those Without Health Coverage Report Knowing Little or Nothing About the Insurance Marketplaces or About the Financial Assistance Available to Low- and Moderate-Income Families Broader Public Opinion on the Law Still Tilts Unfavorably, Though Gap Has Narrowed Since July and Returned to Pre-Rollout Levels With the second annual open enrollment period under the…

  • Tax Subsidies for Private Health Insurance

    Issue Brief

    This brief describes the different forms of tax assistance for private health insurance, including subsidies offered through the Affordable Care Act's marketplaces and benefits for people who are self-employed or who have employer-based coverage. The brief also provides examples of how the subsidies work and how the amounts may differ by income and type of coverage.