Affordable Care Act

The ACA MarketplaceS

Change in February effectuated enrollment, by state, 2025-2026

How Has ACA Marketplace Enrollment Changed Across States in 2026?

ACA Marketplace enrollment fell this year in every state except New Mexico, which was the only state to fully replace the enhanced premium tax credits that expired last year with a state-funded subsidy, according to a new KFF analysis of effectuated enrollment data. The Marketplace enrollment decline—the first in seven years—follows several years of rapid enrollment growth and coincides with the end of the enhanced federal subsidies.

How Much and Why ACA Marketplace Premiums Are Going Up in 2027

ACA Marketplaces insurers are proposing a median premium increase of 15% in 2027, according to KFF’s updated analysis of 276 insurers with publicly available filings across all 50 states and the District of Columbia. This is the second consecutive year of double-digit premium hikes. Last year’s median nationwide proposed rate change was 18%, and the median finalized rate change was 20%. While this proposed rate change is lower than last year, it represents the second-highest requested rate change since 2018, as premium growth had been relatively flat in this market for several years.

About the ACA

Promotional image for KFF video How Affordable is the Affordable Care Act

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?

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  • Reaching for the Stars: Quality Ratings of Medicare Advantage Plans, 2011

    Issue Brief

    New: Medicare Advantage Plan Star Ratings and Bonus Payments in 2012 In 2012, Medicare Advantage plans will be awarded additional payments based on their quality ratings as a result of the 2010 health reform law. The Centers for Medicare and Medicaid Services has proposed a demonstration that would modify the quality-based payments for plans, providing additional payments for 2012 to 2014. This policy brief by the Kaiser Family Foundation examines the quality ratings of private…

  • Strengthening Medicaid with Health Information Technology: Are Providers & States Up to the Challenge?

    Event Date:
    Event

    Health care providers can receive Medicare and Medicaid payment incentives when they adopt electronic health records and demonstrate their "meaningful use." Additionally, states must establish a website by 2014 for Medicaid beneficiaries to electronically enroll and renew coverage. Yet many challenges remain so that health information technology (HIT) can help the Medicaid program operate more effectively. How can Medicaid health plans and providers use HIT to provide better care delivery and improve health outcomes while…

  • Briefing, Survey Examine 2012 Data From 50-State Survey of Medicaid and CHIP Eligibility and Enrollment Policies

    Event Date:
    Event

    Despite continued tight state budgets, a requirement in the Affordable Care Act (ACA) that states maintain eligibility in Medicaid and Children’s Health Insurance Programs was central in preserving coverage during 2011. In addition, more than half of states (29) made improvements in their programs, often using technology to increase program efficiency and streamline enrollment. These and other findings appear in the Kaiser Commission on Medicaid and the Uninsured report, "Performing Under Pressure: Annual Findings of…

  • Medicaid and Community Health Centers: The Relationship Between Coverage for Adults and Primary Care Capacity in Medically Underserved Communities

    Issue Brief

    Community health centers play an important role in providing care to uninsured and low-income individuals living in medically underserved communities. They rely on many different revenue sources and, over time, Medicaid has become a central source of funding for most health centers. To better understand how Medicaid influences health center practice, this paper compares the strength of health centers in states that have expanded Medicaid coverage for adults to health centers states with more limited…

  • Pulling It Together: The Falloff in Utilization: “There’s Something Happening, Here, What It Is Ain’t Exactly Clear”

    Perspective

    For as long as I have been in the field, we have seen cycles in health care costs. Per capita health spending would rise, then moderate, then rise gain. My colleague Larry Levitt and I documented this in The Sad History of Health Care Costs and my friend Dr. Jim Mongan called it “the peaks and valleys” of health care costs. We have never been sure whether the "valleys" were the result of government actions, such…

  • The Uninsured And The Difference Health Insurance Makes

    Fact Sheet

    This fact sheet describes the characteristics of the uninsured and explains the recent increase in this population. It also examines the difference that health insurance can make and how health reform is expected to cover millions more people.

  • Kaiser Health Tracking Poll: Election 2008 — March 2008

    Poll Finding

    Growing economic worries have led to a sharp rise in the economy as a campaign issue, eclipsing health on voters’ priority list, as well as Iraq. With economic concerns rising, where will health fit in the ongoing presidential campaign?  This March 2008 poll finds that health care plays a role in two ways: as an independent issue, and as part of the voters’ growing concerns about the economy. Health care ranks third as the issue…

  • Pulling It Together: Perspectives on State Health Reform

    Perspective

    This Pulling It Together column is the fourth in my new series. All four so far have dealt with different dimensions of health reform. This time I write about one of my favorite topics, the states. As a former head of an umbrella health and social services agency in a big state responsible for about a third of a state budget and workforce, I have a deep appreciation for state government. It's a level of…

  • Uninsured Young Adults: A Profile and Overview of Coverage Options

    Issue Brief

    Young adults, age 19-29, have the highest uninsured rate of any age group. Since 29% of the uninsured are young adults, efforts to decrease the overall number of uninsured must address this population. This brief examines health coverage for young adults, as well as their health status, access to care, and the financial burdens they encounter when paying for care. It also provides an overview of public and private approaches to expand health coverage for…

  • Pulling It Together: The “R” Word Is Back

    Perspective

    Longer ago than I care to admit, I got my start in health policy at M.I.T. when I wrote a book about health care regulation. The book was about a long forgotten attempt to rationalize the health care system through an elaborate health planning program set up in the seventies under the National Health Planning and Resources Development Act. It established a system of federal, state and regional planning bodies to control health care costs by limiting the supply of…