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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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  • Keeping the Alexander-Murray Health Care Bill in Context

    From Drew Altman

    This Drew Altman Axios column describes the scale of the problems in the ACA marketplaces and the public’s confusion about whether they are impacted. He says that the news media, experts and policy makers can do more to put the marketplace problems and fixes in context as debate evolves.

  • One Big Thing People Don’t Know About Single Payer

    From Drew Altman

    In this Axios column, Drew Altman discusses a challenge for single payer which has not received much attention – a large share of the American people do not think they would have to change their current health insurance arrangements if there were a Medicare-for-all style single payer plan.

  • FAQs: What’s the Latest on IPAB?

    Issue Brief

    The Independent Payment Advisory Board was authorized by the Affordable Care Act to help slow the growth in Medicare spending. These FAQs address common questions about IPAB, including how it was designed to operate and the implications of eliminating it.

  • Approved Changes in Indiana’s Section 1115 Medicaid Waiver Extension

    Issue Brief

    On February 1, 2018, the Centers for Medicare and Medicaid Services (CMS) approved an amended extension of Indiana’s Healthy Indiana Program 2.0 (HIP 2.0) Section 1115 demonstration waiver. Indiana’s waiver initially implemented the ACA’s Medicaid expansion from February, 2015 through January, 2018 by modifying Indiana’s pre-ACA limited coverage expansion waiver (HIP 1.0). Unlike other states that implemented the ACA’s Medicaid expansion through a waiver, Indiana’s demonstration also changes the terms of coverage for non-expansion adults (low-income parents and those eligible for Transitional Medical Assistance, TMA). The February, 2018 extension continues most components of HIP 2.0 and adds some new provisions.

  • Proposals for Insurance Options That Don’t Comply with ACA Rules: Trade-offs In Cost and Regulation

    Issue Brief

    This brief examines four options to promote the sale of health plan options in the individual or non-group market that are not subject to Affordable Care Act (ACA) requirements for other major medical health plans. It reviews the trade-offs involved if such loosely regulated markets take root as an alternative to the ACA-regulated market, particularly as the repeal of the individual mandate penalty takes effect next year.