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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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  • ACA Open Enrollment: If You Are Low-Income

    Fact Sheet

    This fact sheet explains 2020 health coverage options that may be available to people who have low incomes, including Medicaid coverage or individual insurance plans through Affordable Care Act (ACA) marketplaces.

  • ACA Open Enrollment: If You Shop on Private Websites Instead of HealthCare.gov

    Fact Sheet

    Marketplace plans can now be sold through private websites, sometimes described as "direct enrollment” sites or “certified enrollment partner” sites. This short fact sheet explains how these sites and the plans they offer may differ from what consumers will find on HealthCare.gov.

  • Poll: Democrats Say They Are Hearing Enough From Presidential Candidates About Medicare-for-All and Expanding Coverage, But Want Them to Talk More about Health Costs and Women’s Health Care

    News Release

    Heading into tonight’s Democratic primary debate, most Democrats and Democratic-leaning independents say the candidates are spending the right amount or too much time talking about ways to provide coverage to more Americans and Medicare-for-all, two topics that have dominated health care discussions in the past three rounds of Democratic debates, the latest KFF Health Tracking Poll finds. In contrast, large shares of Democrats and Democratic-leaning independents say that the presidential candidates are spending too little…

  • Voters Aren’t Buying Trump’s Promises of a Health Care Plan

    From Drew Altman

    Drew Altman showcases new KFF polling on the public’s views of President Trump’s promise that he will have a “phenomenal” health care plan and protect Medicare, and analyzes what it means for health care politics.

  • Nearly 54 Million Americans Have Pre-Existing Conditions That Would Make Them Uninsurable in the Individual Market without the ACA

    News Release

    Almost Half of Non-Elderly Families have At Least One Adult with a Pre-Existing Condition An updated KFF analysis estimates that almost 54 million people – or 27% of all adults under 65 —have pre-existing health conditions that would likely have made them uninsurable in the individual markets that existed in most states before the Affordable Care Act. The share of adults under 65 with such declinable pre-existing conditions varies significantly across states, from at least…

  • Pre-Existing Condition Prevalence for Individuals and Families

    Issue Brief

    This analysis estimates that almost 54 million people – or 27% of all adults under 65 —have pre-existing health conditions that would likely have made them uninsurable in the individual markets that existed in most states before the Affordable Care Act. Almost half (45%) of non-elderly families include at least one adult with such a pre-existing condition. The analysis also includes estimates by age, state and gender.

  • JAMA Forum: What is Trumpcare?

    Perspective

    The debate among Democratic presidential candidates about how to reform the health care system largely boils down to whether to build on the Affordable Care Act and create an option for people to enroll in Medicare or create a Medicare for all plan that covers everyone. On the other side of the partisan divide, President Trump has repeatedly promised a health care plan, but not yet delivered one. The president has vowed to repeal the…