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The ACA Marketplace

2025 KFF Marketplace Enrollees Survey

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, according to a KFF survey conducted in 2025.

New AND NOTEWORTHY

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.

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  • How Affordability of Employer Coverage Varies by Family Income

    Issue Brief

    This analysis looks at the share of family income people with employer-based coverage pay toward their premiums and out-of-pocket payments for medical care. The cost of employer sponsored health insurance—including premiums, deductibles, and other out-of-pocket costs—has risen steadily over time.

  • The New Health Care Agenda: Gridlock, Lots of Hearings

    From Drew Altman

    In an Axios column, Drew Altman analyzes what the midterm election means for the health policy agenda between now and 2020--mostly political positioning and gridlock in Congress, with most of the action affecting people in the states. 

  • Poll: Strong Initial Support for a Public Option, But Arguments Can Significantly Shift Views

    News Release

    Health Care Remains a Top Issue for Democrats Heading into Next Debates; At This Stage, More Want to Hear About Candidates’ Difference than Contrasts with President Trump The 2020 presidential election may be shaping up to be another election cycle focused on health care, with Democratic candidates offering competing proposals aimed at expanding coverage and controlling costs and a pending legal battle over the constitutionality of the Affordable Care Act. The latest KFF tracking poll…

  • How Repeal of the Individual Mandate and Expansion of Loosely Regulated Plans are Affecting 2019 Premiums

    Issue Brief

    In health insurance systems designed to protect people with pre-existing conditions and guarantee availability of coverage regardless of health status, countervailing measures are also needed to ensure people do not wait until they are sick to sign up for coverage (as doing so would drive up average costs for other enrollees). The Affordable Care Act (ACA) included a variety of “carrots” (e.g., premium tax credits and cost-sharing reductions) and “sticks” (e.g., the individual mandate penalty…

  • Insurer Strategies to Control Costs Associated with Weight Loss Drugs

    Issue Brief

    Affordable Care Act (ACA) Marketplace plans rarely cover GLP-1 drugs approved solely for obesity treatment, according to a an analysis of 2024 federal plan data. Wegovy, a drug that is approved for weight loss, is covered by just 1% of Marketplace prescription drug plans, compared to 82% of Marketplace prescription drug plans for Ozempic, which contains the same active ingredient as Wegovy (semaglutide) but is approved only for diabetes. This analysis examines publicly available formularies…

  • KFF Analysis Finds Physician Networks in ACA Marketplace Plans Vary Widely, and Enrollees Typically Pay More in Premiums to Access Broader Networks

    News Release

    A KFF analysis of physician networks in the Affordable Care Act’s Marketplace plans finds wide variations in the share of local practicing physicians who participate, with the least costly plans generally having a smaller share of physicians than more expensive plans. The analysis examines the breadth of physician networks listed in Marketplace plan directories in 2021 in nearly every county nationally in relation to the number of actively practicing physicians locally.  On average, Marketplace enrollees…

  • Claims Denials and Appeals in ACA Marketplace Plans in 2021

    Issue Brief

    This analysis of HealthCare.gov Marketplace insurers' transparency data finds that 17% of in-network claims were denied in 2021, with denial rates varying widely across insurers. Consumers appealed less than two-tenths of 1% of denied in-network claims.