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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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  • ACA Sign-Ups Are Down by Over a Million People, But It’s Still an Incomplete Picture

    Quick Take

    Data currently being released represent Open Enrollment Marketplace plan selections, or how many people have signed up for or been automatically renewed into 2026 coverage. These data do not necessarily translate to effectuated enrollments. That is because people who have selected a plan or been automatically renewed may not ultimately choose to pay for their plan, thus “effectuating” their coverage.

  • Tracking the Public’s Views on the ACA

    Tracker

    This interactive tool tracks public opinion on the Affordable Care Act, from the inception of the law to the present. It highlights key moments when views shifted and trends based on party identification, income, age, gender, and race/ethnicity.

  • A Look at the Private Option in Arkansas

    Issue Brief

    Based on stakeholder interviews and early data on coverage, reduced uncompensated care costs, and other topics, this issue brief provides an initial look at implementation of Arkansas' Section 1115 Medicaid expansion demonstration waiver to require most adults newly eligible for Medicaid through the Affordable Care Act's Medicaid expansion to enroll in Marketplace plans.

  • How Many Employers Could be Affected by the Cadillac Plan Tax?

    Issue Brief

    As fall approaches, we can expect to hear more about how employers are adapting their health plans for 2016 open enrollments. One topic likely to garner a good deal of attention is how the Affordable Care Act’s high cost plan tax (HCPT), sometimes called the “Cadillac plan” tax or "Cadillac tax," is affecting employer decisions about their health benefits. The tax takes effect in 2018.

    The potential of facing an HCPT assessment as soon as 2018 is encouraging employers to assess their current health benefits and consider cost reductions to avoid triggering the tax. Some employers announced that they made changes in 2014 in anticipation of the HCPT, and more are likely to do so as the implementation date gets closer.

  • New Tracker Monitors Affordable Care Act Preventive Services Coverage

    News Release

    The Affordable Care Act requires private insurance plans to cover recommended preventive services with no out-of-pocket charges for patients. This slate of covered services can change when the U.S. Preventive Services Task Force and other authorized groups add or modify recommendations; the federal government also periodically issues clarifications to guide health plans in their coverage.

  • Analysis of 2016 Premium Changes in the Affordable Care Act’s Health Insurance Marketplaces

    Fact Sheet

    The chart and tables below present an updated analysis of changes in premiums for the lowest- and second-lowest cost silver Affordable Care Act (ACA) marketplace plans in major cities in 48 states and the District of Columbia, where we were able to find complete data on rates for all insurers. This page will be updated as complete rate information becomes available for more states. More background can be found in our earlier analysis of 2016 rates.

  • New Analysis Shows States with Medicaid Expansion Experienced Declines in Uninsured Hospital Discharges

    Issue Brief

    Expanded health insurance coverage through the Affordable Care Act (ACA) is having a major impact on hospital payer mix across the country. Similar to other reports recently released, new data examining hospital discharges in 16 states with data through the second quarter in 2014 show increases in Medicaid and declines in uninsured or self-pay discharges in states that implemented the Medicaid expansion. These trends hold true for all hospital discharges as well as for specific services such as mental health or asthma. This information adds to a growing body of evidence indicating that coverage expansions are affecting providers and may lead to decreases in uncompensated care for the uninsured.

  • Two Substantive Sides to Debate Over Obamacare’s ‘Cadillac Tax’

    From Drew Altman

    In this column for The Wall Street Journal’s Think Tank, Drew Altman says debate about whether to keep or repeal the Cadillac tax is more than a debate between sound policy and good politics, there are strong substantive arguments on both sides.