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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

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  • How Medicaid Section 1115 Waivers Are Evolving: Early Insights About What to Watch

    Issue Brief

    While efforts to pass major federal legislation to repeal and replace the Affordable Care Act (ACA) and restructure and reduce federal Medicaid financing may be on hold temporarily, the focus of the Centers for Medicare and Medicaid Services (CMS) and states is expected to turn to achieving significant Medicaid program changes through Section 1115 demonstration waivers. This issue brief presents three questions to help analyze the evolution of federal waiver policy as new waiver proposals and decisions emerge.

  • How the Loss of Cost-Sharing Subsidy Payments is Affecting 2018 Premiums

    Issue Brief

    This analysis of 32 states and Washington, D.C., tracks data on 2018 Affordable Care Act (ACA) marketplace premium increases that insurers directly attributed to the end of cost-sharing reduction payments, which reimburse insurers for providing marketplace health plans with reduced out-of-pocket costs for lower-income people. Following months of uncertainty, the Trump administration announced on Oct. 12 that the payments would be discontinued immediately, although insurers must still offer the subsidized coverage.

  • How Premiums Are Changing In 2018

    Issue Brief

    Maps illustrate how premiums in Affordable Care Act (ACA) marketplaces changed for 2018 by looking at the change in the lowest-cost bronze, silver and gold plans by county; counties where an individual’s tax credit covers the full premium of the lowest-cost bronze plan; and counties where the unsubsidized premium for the lowest-cost gold plan has a lower or comparable premium to the lowest-cost silver plan in 2018.

  • Individual Mandate Penalty Calculator

    Interactive

    The Individual Mandate Penalty Calculator estimates your penalty for going uninsured vs. how much you would pay for health insurance coverage on the Affordable Care Act (ACA) marketplaces.

  • ANALYSIS: More than Half of Uninsured People Eligible for Marketplace Insurance Could Pay Less for Health Plan than Individual Mandate Penalty

    News Release

    A new Kaiser Family Foundation analysis finds that more than half (54% or 5.9 million) of the 10.7 million people who are uninsured and eligible to purchase an Affordable Care Act marketplace plan in 2018 could pay less in premiums for health insurance than they would owe as an individual mandate tax penalty for lacking coverage.

  • How the Elections Could Put the Brakes on Anti-ACA Plans

    From Drew Altman

    In this Axios column, Drew Altman examines the role of health care in Virginia's elections and the referendum on Medicaid expansion in Maine. His assessment: the elections and the referendum will have a bigger impact on upcoming policy debates about cutting Medicaid to pay for tax cuts, and state interest in Medicaid expansion, than on upcoming elections.