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Affordable Care Act

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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

Enhanced Premium tax credits

2025 KFF Marketplace Enrollees Survey

If their premium payments double, about one in three ACA enrollees say they would be “very likely” to look for a lower-premium Marketplace plan.

Timely insights and analysis from KFF staff

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  • How Narrow or Broad Are ACA Marketplace Physician Networks?

    Report

    This report examines the share of doctors participating in the provider networks of Qualified Health Plans (QHPs) offered in the individual market in the federal and state Marketplaces in 2021, and how network breadth affected costs for enrollees.

  • Examining Short-Term Limited-Duration Health Plans on the Eve of ACA Marketplace Open Enrollment

    Issue Brief

    As Marketplace Open Enrollment nears, policy changes could leave millions of people facing substantially higher premiums and coverage loss, which could lead more consumers to purchase less expensive and less comprehensive coverage through short-term health plans. KFF analyzes short-term health policies sold by nine large insurers in 36 states, examining premiums, cost sharing, covered benefits, and coverage limitations and comparing them to ACA Marketplace plans.

  • How Might Expiring Premium Tax Credits Impact People with HIV?

    Issue Brief

    This issue brief provides an overview of the potential impact not extending enhanced ACA premium tax credits could have on people with HIV and the Ryan White HIV/AIDS Program. Enhanced credits have improved insurance coverage affordability for millions of people, including those with HIV. People with HIV may be particularly vulnerable, given that they are more likely to have Marketplace plans and many also rely on the federally-funded Ryan White HIV/AIDS Program to help cover plan costs. Loss of coverage and increased costs could lead to disruptions in care for people with HIV which could have serious implications for individual and public health.

  • About Half of Adults with ACA Marketplace Coverage are Small Business Owners, Employees, or Self-Employed

    Issue Brief

    This analysis estimates that 48% of adults under age 65 with individual market coverage are either employed by a small business with fewer than 25 workers, self-employed entrepreneurs, or small business owners. Because the vast majority of this coverage is purchased through the Affordable Care Act (ACA) Marketplaces, changes to the ACA, including the expiration of the enhanced premium tax credits at the end of this year, would have significant implications for what small business owners and workers spend on their health care.

  • How Will the 2025 Reconciliation Law Affect the Uninsured Rate in Each State?

    Issue Brief

    This analysis apportions the increase in the number of uninsured across the 50 states and DC. CBO estimates that the reconciliation law will increase the number of uninsured by 10M in 2034 and rise to over 14M if enhanced premium tax credits for ACA Marketplace enrollees expire later this year.