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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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  • Web Briefing for Journalists: Consumer Issues Ahead of the Affordable Care Act’s Second Open Enrollment Season

    Event Date:
    Event

    The Affordable Care Act's second annual open enrollment period starts Nov. 15 and runs until Feb. 15 -- a three-month window for Americans to shop for and purchase new health coverage, or change their plan through Healthcare.gov or their state-run insurance marketplace.  This year's open enrollment season poses both new and recurring challenges for consumers:  How are premiums for marketplace plans changing, and what do the changes mean for consumers?  Why might current marketplace customers…

  • Quality of Care in Community Health Centers and Factors Associated with Performance

    Issue Brief

    This study examines quality among health centers relative to Medicaid managed care organizations (MCOs). Chronic care quality among health centers is high; gaps in women’s preventive care are a concern. Lower-performing health centers have very high uninsured and homeless rates. The expansion of Medicaid and private insurance under the ACA may foster gains in health center quality performance.

  • Rewarding Healthy Behaviors: Variation in Health Risk Across Industries Among American Workers

    Issue Brief

    Faced with an unsustainable growth in health care costs, both employers and policymakers have begun to consider the potential savings that might be achieved by investments in health promotion and better access to preventive care. There has also been public discussion about the potential of building financial incentives for healthy behaviors and the use of prevention services into health plans. Creating the right incentives is a challenge however, because experience is so limited and healthy…

  • Expanding Medicaid under Health Reform: A Look at Adults at or below 133% of Poverty

    Issue Brief

    This issue brief from the Kaiser Commission on Medicaid and the Uninsured examines the key characteristics of the 17.1 million low-income uninsured adults who currently have incomes that would qualify them for Medicaid under the expansion of the program in health reform. The planned expansion of Medicaid to all individuals with incomes at or below 133 percent of the federal poverty level will establish a national foundation of coverage based on income. Adults whose incomes…

  • Health Care Reform Newsmaker Series: Sen. Chuck Grassley (R-Iowa)

    Event Date:
    Event

    Sen. Chuck Grassley (R-Iowa), ranking Republican member of the Senate Committee on Finance, appeared as a guest in the new series of Health Care Reform newsmaker briefings sponsored by the Kaiser Family Foundation, Families USA and the National Federation of Independent Business. The reporters-only briefings, designed to inform the public about prospects and options for health reform, feature a short presentation by an influential leader followed by an extended question-and-answer session.  Transcript (.pdf) Video

  • National Health Insurance — A Brief History Of Reform Efforts In The U.S.

    Issue Brief

    This policy brief provides an overview of health reform efforts in the United States over much of the last century, from New Deal-era calls for government-subsidized health coverage to the creation of Medicare and Medicaid in the 1960s and the failed attempt at universal coverage in the early 1990s. Issue Brief (.pdf)

  • Health Care Reform Newsmaker Series: Nancy-Ann DeParle, Director of the White House Office of Health Reform

    Event Date:
    Event

    Nancy-Ann DeParle, director of the White House Office of Health Reform, appeared as the third guest in a series of Health Care Reform newsmaker briefings sponsored by the Kaiser Family Foundation, Families USA and the National Federation of Independent Business. The reporters-only briefings, designed to inform the public about prospects and options for health reform, feature a short presentation by an influential leader followed by an extended question-and-answer session.  Transcript (.pdf) Video

  • Connecting Eligible Immigrant Families to Health Coverage and Care: Key Lessons from Outreach and Enrollment Workers

    Issue Brief

    Beginning in 2014, health coverage options will significantly expand under health reform through an expansion in Medicaid eligibility and by making tax credits available to help individuals purchase coverage through new Health Benefit Exchanges. Given their high uninsured rate and limited access to private and public coverage, one group who could significantly benefit from this coverage expansion is lawfully residing immigrant families. However, it will be important to address barriers eligible immigrant families often face…

  • How Many Employers Could Be Affected by the High-Cost Plan Tax

    Issue Brief

    The high cost plan tax (HCPT) sometimes referred to as the Cadillac tax, is an excise tax on the cost of employer health benefit exceeding certain threshold. The HCPT provides a powerful incentive to control health plans costs over time, whether through efficiency gains or shifts in costs to workers. While many employers do not expect that the tax will take effect in 2022, others are already amending their health programs in anticipation. We estimate…