Affordable Care Act

About the ACA

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Did the Affordable Care Act Make Health Care More Affordable?

The expiration of the ACA’s enhanced premium tax credits at the start of 2026, combined with rising insurer premiums, put a spotlight on health care affordability that extends beyond Marketplace enrollees. KFF’s Cynthia Cox examines the ACA’s record and the broader underlying question it raises: what’s a fair price for Americans people to pay for health care?

The ACA MarketplaceS

In Preliminary Rate Filings, ACA Marketplace Insurers Largely Propose Double-Digit Premium Increase For 2027, Following a Steep Climb This Year 

ACA Marketplace insurers are proposing a median premium increase of 14% for 2027— indicating a likely second consecutive year of double-digit increases, according to a new analysis of preliminary rate filings in 16 states and DC. If these increases hold, typical premiums for insurers participating in the ACA Marketplaces would jump by more than one-third between 2025 and 2027.

The Average Marketplace Deductible Grew by About $1,000 Per Person in 2026, With More Enrollees Shifting to Higher-Deductible Plans as Enhanced Tax Credits Expired

The average Affordable Care Act (ACA) Marketplace deductible experienced the steepest increase in history—growing by 37% or over $1,000, from $2,759 in 2025 to $3,786 in 2026 as enhanced premium tax credits expired, according to a new KFF analysis. After the enhanced tax credits ended, many Marketplace shoppers shifted toward lower-premium, higher-deductible plans.

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  • “What is CMMI?” and 11 other FAQs about the CMS Innovation Center

    Fact Sheet

    The Center for Medicare and Medicaid Innovation (CMMI), also known as the "Innovation Center," was authorized under the Affordable Care Act with the goals of designing, implementing, and testing new payment and delivery system reform models to address concerns about rising costs, quality of care, and inefficient spending. These FAQs provide an overview of the Innovation Center, as well as details on model performance, beneficiary involvement, and more.

  • The Numbers Behind “Young Invincibles” and the Affordable Care Act

    Perspective

    As enrollment statistics in the new health insurance marketplaces start to become available, there is a growing focus on whether the enrollment of so-called “young invincibles” will be sufficient to keep insurance markets stable. Enrollment of young adults is important, but not as important as conventional wisdom suggests since premiums are still permitted to vary substantially by age. Because of this, a premium “death spiral” is highly unlikely. Why does the age distribution of enrollees…

  • April Kaiser Health Tracking Poll: Core Views on ACA Remain Stable After Oral Arguments

    Perspective

    The increased public attention to the Affordable Care Act (ACA) generated by the Supreme Court’s consideration of the law did not meaningfully change the public’s opinion of the law overall or of the specific provision at the heart of the legal case against it, the individual mandate. Forty-two percent say they have a favorable opinion of the law this month and 43 percent have an unfavorable one, a division virtually unchanged from March. Similarly, the…

  • Health Insurance Transparency under the Affordable Care Act

    Perspective

    In February, a final rule was issued implementing the Affordable Care Act (ACA) requirement that all health plans provide a uniform summary of coverage for all enrollees and applicants. The idea of providing easy-to-understand summaries of coverage is, in fact, the most popular provision in the ACA, according to a recent Kaiser tracking poll. That finding suggests powerful consumer frustration over the complexity of health insurance and the difficulty people face evaluating health insurance choices and understanding…

  • March Kaiser Health Tracking Poll: The ACA at Two Years; The Individual Mandate and the Supreme Court

    Perspective

    As the Patient Protection and Affordable Care Act (ACA) nears its second birthday, the latest Kaiser Health Tracking Poll finds that public opinion on the law remains evenly split (41 percent favorable, 40 percent unfavorable) with sharp divisions along partisan lines, much as it has been since the law was passed. With the Supreme Court preparing to hear challenges to the law later this month, about half the public thinks the Court should strike down the…

  • Fewer Want To Expand Medicaid After Hearing Their State Could Spend More

    Feature

    Fewer Want To Expand Medicaid After Hearing Their State Could Spend More Download Source Kaiser Family Foundation/Robert Wood Johnson Foundation/Harvard School of Public Health, The Public’s Health Care Agenda for the 113th Congress (conducted January 3-9, 2013)

  • Consumer Assistance in Health Reform

    Issue Brief

    With the open enrollment period for health insurance exchanges less than six months away, consumers are already asking questions about their new health care options under the Affordable Care Act (ACA). Even in the age of digital information, hands-on consumer assistance could play a key role in helping people understand their insurance choices come 2014 — a recent Kaiser Family Foundation poll showed that two thirds of the uninsured and a majority of Americans overall…

  • The Flip Side of Higher Premiums: Better Coverage

    Perspective

    Time Magazine's recent cover story on health care – "Bitter Pill" by Steven Brill – has focused attention on hospital prices, especially for people paying out of their own pockets. This is not a new issue, but certainly one that deserves attention. However, what has been lost in the ensuing commentary on high hospital prices is that Brill’s article is as much about inadequate insurance, which is the reason why the patients he writes about…

  • Study Finds Recent Slowdown in Health Spending Growth Mostly Tied to the Economy

    News Release

    Growth Expected To Move Towards Historical Levels In Coming Years As the Economy Recovers A new Kaiser Family Foundation analysis of how the economy affects the nation’s health spending concludes that the record slow growth rate of recent years stems largely from economic factors beyond the health system, with the economy explaining 77 percent of the slowdown, and more rapid growth expected in coming years if the economy strengthens as expected. Based on statistical modeling…