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Affordable Care Act

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

    News Release

    In his latest column for The Wall Street Journal’s Think Tank, Drew Altman says the 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. All previous columns by Drew Altman are available online.

  • 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.

  • Kaiser Health Tracking Poll: September 2015

    Feature

    As the Centers for Medicare & Medicaid Services prepares to finalize a plan to pay physicians for discussing end-of-life treatment options with Medicare patients, this month’s Kaiser Health Tracking Poll finds that about 8 in 10 of the public favors Medicare and private insurance covering such discussions and about 9 in 10 say doctors should have these discussions with their patients. However, relatively few (17 percent) say they’ve had such discussions with a doctor or other health care provider, while half of the public says they would want to have such a discussion. Overall, opinion of the health care law has remained divided with similar shares reporting favorable views (41 percent) and unfavorable views (45 percent), with opinion starkly divided by party. The Kaiser Health Policy News Index also finds that the 2016 presidential election is the most widely followed news story included in this month’s Index, placing far ahead of health policy news stories.

  • Public Strongly Favors End-of-Life Conversations Between Doctors and Patients, With About Eight in 10 Saying Medicare and Other Insurers Should Cover These Visits

    News Release

    Six in 10 Oppose 'Cadillac Plan Tax' on High-Cost Health Plans Set to Take Effect in 2018, But Cost Savings Argument Can Change Some Opinions Views on the Affordable Care Act Remain Divided: 45% Unfavorable, 41% Favorable As the Centers for Medicare & Medicaid Services prepares to finalize a plan to pay physicians for discussing…

  • How Primary-Care Physicians Are Handling the Influx of Newly Insured

    News Release

    In his column for The Wall Street Journal's Think Tank, Kaiser’s President Drew Altman is joined by The Commonwealth Fund's President David Blumenthal to discuss the impact of the Affordable Care Act’s coverage expansion on the primary care delivery system. Their analysis is based on the Kaiser-Commonwealth National Survey of Primary Care Providers.

  • How Primary-Care Physicians Are Handling the Influx of Newly Insured

    From Drew Altman

    In this column for The Wall Street Journal's Think Tank, Kaiser’s President Drew Altman is joined by The Commonwealth Fund's President David Blumenthal to discuss the impact of the Affordable Care Act’s coverage expansion on the primary care delivery system.

  • 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.

  • 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.