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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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  • Data Note: How Has the Individual Insurance Market Grown Under the Affordable Care Act?

    Issue Brief

    This data note examines changes in the individual insurance market under the Affordable Care Act. Through analysis of filings by insurers to state insurance departments, the Kaiser Family Foundation estimates that the number of people enrolled in the individual insurance market grew 40 percent from the end-of-year 2013 to the end-of-year 2014 and has likely continued growing in 2015 as well.

  • Americans’ Health Priorities Diverge From Washington’s Focus on Obamacare

    News Release

    In his latest column for The Wall Street Journal's Think Tank, Drew Altman finds the public’s health-care priorities have more to do with drug costs and other real-world issues people deal with using the health-care system than the ongoing partisan wrangling over the Affordable Care Act. All previous columns by Drew Altman are available online.

  • The ACA and People with HIV: Profiles from the Field

    News Release

    New in-depth profiles of 12 people with HIV highlight how the Affordable Care Act’s coverage expansions impacted their access to coverage and care. While some experienced serious bumps along the way, those who gained coverage through Medicaid and the Marketplaces were largely able to meet both their HIV and non-HIV care needs.

  • Data Note: Predictors Of Positive And Negative Attitudes Towards The ACA Among Non-Group Insurance Enrollees

    Poll Finding

    One of the groups perhaps most affected by changes brought about by the Affordable Care Act (ACA) are people who purchase their own health insurance in the non-group market. In this Data Note, we examine data from the Kaiser Family Foundation Wave 2 Survey of Non-Group Health Insurance Enrollees to explore the characteristics of non-group enrollees that are associated with positive and negative attitudes towards the ACA, including feeling personally benefited or negatively affected by the law.

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

    Issue Brief

    This analysis provides an early look at premium changes for individuals in the health insurance marketplaces, created under the Affordable Care Act (ACA), in major cities in 10 states plus DC. Premium changes for the benchmark silver plans vary significantly across the sample cities. The benchmark rates will increase 4.4 percent on average in 2016 without accounting for tax credits, a relatively modest amount but greater than the average increase for 2015.

  • Media Availability on the U.S. Supreme Court’s King v. Burwell Decision

    Event Date:
    Event

    The Kaiser Family Foundation held a media-only conference call with key experts on the Affordable Care Act (ACA), state marketplaces and more to explain the U.S. Supreme Court's decision in the King v. Burwell case and to answer questions about its implications. The petitioners in the case are challenging the legality of premium and cost-sharing subsidies for low- and middle-income people buying health plans in 34 states where the federal government rather than the state is operating an insurance marketplace established by the Affordable Care Act.

  • Contraception X Article: Out-of-Pocket Spending for Oral Contraceptives Among Women with Private Insurance Coverage After the Affordable Care Act

    Issue Brief

    In an article for Contraception X, KFF's Brittni Frederiksen, Matthew Rae, and Alina Salganicoff examine large employer plans to identify which types and brands of oral contraceptive pills have the largest shares of oral contraceptive users with out-of-pocket spending and which oral contraceptives have the highest average annual out-of-pocket costs after the ACA covered contraception under it's preventive services provisions.

  • Health Care and the 2020 Presidential Election

    Feature

    This side-by-side comparison examines President Trump’s record and former Vice President Biden’s positions across a wide range of key health issues, including the response to the pandemic, the Affordable Care Act marketplace, Medicaid, Medicare, drug prices, reproductive health, mental health and opioids, immigration and health coverage, and health care costs.