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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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  • Brief Provides Update on LGBT Coverage and Health as More States Recognize Same-Sex Marriage

    News Release

    An updated issue brief from the Kaiser Family Foundation gives a detailed profile of health concerns for lesbian, gay, bisexual and transgender individuals, offers the latest demographic data, and discusses the impact of recent changes in state and federal policies on health coverage, including the Affordable Care Act and same-sex marriage.

  • Early Analysis In Eleven States Finds Modest Increases For ACA Silver Plans

    News Release

    A Kaiser Family Foundation analysis of Affordable Care Act (ACA) plans in major metropolitan areas in 11 states where data are available, including the District of Columbia, finds that preliminary 2016 premiums for benchmark silver plans grew modestly, but increased more sharply this year than last year. The average increase for benchmark plans across the cities is 4.4 percent for 2016 compared with a 2 percent increase nationwide in 2015.

  • Market Share of Largest Insurance Carrier in the Individual Insurance Market, 2010

    Feature

    Market Share of Largest Insurance Carrier in the Individual Insurance Market, 2010 Download Source Kaiser Family Foundation analysis of 2010 insurer filings to the National Association of Insurance Commissioners and the California Department of Managed Health Care using the Mark Farrah Associates Health Coverage Portal TM.

  • Health Insurance Market Reforms: Portability

    Fact Sheet

    Most Americans have access to health insurance through an employer-sponsored health plan, a fact that has made changing or losing a job a complex issue for the purposes of maintaining health insurance.

  • A Look At CBO Projections For Medicaid and CHIP

    Issue Brief

    This brief examines the latest Congressional Budget Office (CBO) projections for federal Medicaid and CHIP spending over the 2014-2024 period. CBO’s budget projections, also known as “baseline” projections, reflect CBO’s best judgment about how the economy and other factors will affect federal revenues and spending under existing laws. The brief also examines CBO estimates of the coverage effects of the Affordable Care Act (ACA) on Medicaid and CHIP enrollment and spending. Understanding the CBO baseline estimates is important because they are the basis to evaluate the federal cost and coverage implications of proposed federal policy changes.