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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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  • 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.

  • 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.

  • How Many of the Uninsured Can Purchase a Marketplace Plan for Less Than Their Shared Responsibility Penalty?

    Issue Brief

    For people who are uninsured and eligible for Affordable Care Act (ACA) marketplace plans, the analysis compares the cost of a premium for the lowest-cost bronze plan with the estimated individual mandate tax penalty for 2018. It finds that more than half (54% or 5.9 million) of the 10.7 million people could pay less in premiums for health insurance than they would owe as an individual mandate tax penalty for lacking coverage.

  • 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.

  • Poll: Ahead of House Tax Reform Vote, Americans are More Likely to Rank Children’s Health Care, Hurricane Relief and Other Issues as Top Priorities for Washington

    News Release

    Most of the Public Initially Favors Getting Rid of the ACA’s Individual Mandate As Part of Tax Reform, But Some Become Opponents When Presented with Facts and Arguments for Keeping the Mandate As the House prepares to vote Thursday on its tax reform bill, a new Kaiser Family Foundation poll finds almost three in 10…

  • Health Spending for 60-64 Year Olds Would Be Lower Under Medicare Than Under Large Employer Plans

    Issue Brief

    During the presidential campaign, President Biden proposed to lower the age of Medicare eligibility from 65 to 60. This analysis uses claims data for covered medical services from both large employer plans and traditional Medicare to illustrate the potential spending effects of using Medicare payment rates in lieu of higher rates paid by employer plans for people 60-64 who shift from large employer plans to Medicare.