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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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  • Challenges to Forecasting Obamacare Enrollment for 2015

    News Release

    In his latest column for The Wall Street Journal’s Think Tank, Drew Altman explains why 2015 enrollment in the Affordable Care Act’s marketplaces is very hard to predict. All previous columns by Drew Altman are available online.

  • Abortion Coverage in Marketplace Plans, 2015

    Issue Brief

    This brief analyzes state policies and insurer coverage decisions affecting the availability of abortion coverage in 2015 insurance plans offered through the Marketplaces. It finds that abortion coverage is unavailable in a total of 31 states, 24 of which have enacted laws that ban or restrict abortion coverage in plans sold through their Marketplaces and 7 of which have no abortion coverage restrictions but also have no Marketplace plans offering it.

  • Medicaid Expansion Waivers: What Will We Learn?

    Issue Brief

    Section 1115 waivers authorize research and demonstration projects that, in the view of the Health and Human Services (HHS) Secretary, further the purposes of the Medicaid program. The ACA implemented new requirements for these waivers, including that states must have a publicly available, approved evaluation strategy. This brief examines some of the major research questions and hypotheses relevant to the federal and state evaluations of Medicaid expansion Section 1115 waivers and explores key challenges that may hamper research and evaluation efforts.

  • Assessing ACA Marketplace Enrollment

    Issue Brief

    This analysis examines factors that may have kept 2016 enrollment in Affordable Care Act (ACA) marketplace plans from reaching early projections, and it estimates that sign-ups will continue to grow modestly in coming years.

  • Visualizing Health Policy: Recent Trends in Prescription Drug Costs

    News Release

    This Visualizing Health Policy infographic spotlights national spending on prescription drugs and the public’s views on pharmaceutical prices. Prescription drug spending rose sharply in 2014, driven by growth in expenditures on specialty drugs, including medications to treat cancer and hepatitis C.

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

    From Drew Altman

    In this column for The Wall Street Journal's Think Tank, Drew Altman finds the public’s healthcare 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 (ACA).

  • The ACA and People with HIV: An Update

    Issue Brief

    This report provides a second look at how the Affordable Care Act (ACA) is impacting people with HIV two years into these new coverage opportunities, based on focus groups conducted with HIV positive individuals from five states in early 2016, after the third round of open enrollment. Groups were conducted with HIV positive individuals who gained insurance coverage – through either the Marketplaces or Medicaid expansion- in California and New York and with those who remained uninsured, largely because they fell into the coverage gap, in Florida, Georgia, and Texas.