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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.”

new and noteworthy
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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  • Health Insurance Marketplace Calculator Updated for 2016

    News Release

    The Kaiser Family Foundation's Health Insurance Marketplace Calculator is now updated to include local data on 2016 health plans that are being sold through the Affordable Care Act marketplaces. The Spanish-language version of the calculator is also updated.

  • A Guide to Understanding Medicaid Expansion Waivers as States Debate What to Do Under the ACA

    News Release

    With the recent governors’ elections in Kentucky and Louisiana refocusing attention on state Medicaid expansion decisions, a newly updated issue brief from the Kaiser Family Foundation provides an overview of the waivers obtained by six states – Arkansas, Iowa, Michigan, Indiana, New Hampshire and Montana -- that are pursuing alternative Medicaid expansions under the Affordable Care Act.

  • Fast Track to Coverage: Facilitating Enrollment of Eligible People into the Medicaid Expansion

    Issue Brief

    To help states launch the Affordable Care Act (ACA) Medicaid expansion and efficiently enroll eligible individuals, CMS has offered states a series of facilitated enrollment options. These options include strategies, referred to as “fast track enrollment” in this issue brief, that allow states to enroll eligible individuals into coverage using data already available from their Supplemental Nutrition Assistance programs (SNAP) and/or their Medicaid or Children’s Health Insurance Program (CHIP) programs for children. This issue brief…

  • A Profile of Community Health Center Patients: Implications for Policy

    Issue Brief

    Community health centers are a key source of primary care in underserved areas. Their role will grow as coverage expands under the ACA. To sharpen understanding of the health center patient population, this brief compares them to the low-income population overall, using the Health Center Patient Survey and National Health Interview Survey. The pre-ACA profile of health center patients that emerges sets the stage for measuring change and highlights important implications of states’ Medicaid expansion…

  • The Impact of the Coverage Gap for Adults in States not Expanding Medicaid by Race and Ethnicity

    Issue Brief

    The Affordable Care Act (ACA) expansion of Medicaid to adults with incomes at or below 138% of the federal poverty level (FPL) effectively became a state option following the Supreme Court decision, creating a “coverage gap” for many poor uninsured adults in states that do not expand Medicaid. This brief examines the coverage gap by race and ethnicity.

  • How Will the Uninsured in Missouri Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in Missouri, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in Missouri are eligible for Medicaid or financial assistance in…

  • How Will the Uninsured in Alaska Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in Alaska, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in Alaska are eligible for Medicaid or financial assistance in…

  • How Will the Uninsured in the District of Columbia Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in District of Columbia, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in District of Columbia are eligible for Medicaid…