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The ACA Marketplace

2025 KFF Marketplace Enrollees Survey

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, according to a KFF survey conducted in 2025.

New AND NOTEWORTHY

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.

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  • CMS’s Denial of Proposed Changes to Medicaid Expansion in Ohio

    Fact Sheet

    This fact sheet discusses CMS's denial of Ohio's proposed changes to its existing Medicaid expansion . It also provides an overview of the proposed changes as included in the state's Section 1115 demonstration waiver application.

  • New Survey Finds 72% of Previously Uninsured Californians Now Have Coverage, Including 78% of Those Eligible for New Affordable Care Act Options

    News Release

    For Remaining Uninsured Residents, Cost and Immigration Status Are Main Obstacles Three years after the Affordable Care Act’s coverage expansions were fully implemented in California, nearly three quarters (72%) of the state’s previously uninsured residents now have health coverage, finds the fourth Kaiser Family Foundation Longitudinal Panel Survey, which is tracking the experiences of a randomly selected group of Californian adults who were uninsured in 2013. This is similar to the share who reported having insurance…

  • SCOTUS Case Could Weaken the Impact of Regulation on Key Patient and Consumer Protections

    Issue Brief

    This brief discusses the longstanding legal doctrine, Chevron deference, being challenged in two cases before the U.S. Supreme Court and includes examples of what could be at stake for health care consumers should federal courts no longer use this doctrine to address litigation related to federal health regulations. The focus here is on patient and consumer protection regulation, but overturning the Chevron deference would have implications in all areas of health care.

  • New KFF Poll Finds that Many Older Voters Are Unaware of Medicare Drug Price Negotiation, But Awareness Has Grown

    News Release

    A new KFF poll finds that many older voters are unaware of the provision in the Inflation Reduction Act that for the first time requires the federal government to negotiate the price of some prescription drugs in the Medicare program, a key campaign issue for President Joe Biden. The 48% of voters ages 65 and older who are aware of the landmark change represents a 12 percentage point increase from November, the poll shows.  Fifty-two…

  • Where ACA Marketplace Enrollment is Growing the Fastest, and Why

    Policy Watch

    In 2024, Affordable Care Act (ACA) Marketplace enrollment hit a new record high, reaching over 21 million people. This policy watch discusses the the factors contributing to the increased enrollment in the fastest growing marketplaces.

  • What is the Centers for Medicare and Medicaid Services’ New AHEAD Model?

    Issue Brief

    In September 2023, the Centers for Medicare and Medicaid Services (CMS) announced a new opportunity for states to leverage federal funding on health care: the Advancing All-Payer Health Equity Approaches and Development (AHEAD) model. With this model, CMS – under the auspices of the CMS Innovation Center, also known as CMMI -- aims to reduce the rate of growth in health care spending, improve people's health, and reduce disparities in health outcomes. This issue brief…

  • Another Year of Record ACA Marketplace Signups, Driven in Part by Medicaid Unwinding and Enhanced Subsidies

    Policy Watch

    Open enrollment for the Affordable Care Act (ACA) Marketplaces is about to wrap up with another record high number of people signing up for coverage. Factors that contribute to this increase include unwinding of the Medicaid continuous enrollment, increased subsidies from the American Rescue Plan and Inflation Reduction Act, and increased marketing, outreach, and enrollment assistance.

  • 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.