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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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  • 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.

  • Issue Brief Examines the Experiences of Five States During Year Two of Affordable Care Act Coverage Expansions

    News Release

    A new issue brief from the Kaiser Family Foundation draws upon 40 in-person interviews conducted with a variety of stakeholders to assess the recent experiences of five states during the second year of coverage expansions under the Affordable Care Act (ACA).  The interviews took place in three states -- Colorado, Kentucky and Washington -- that have State-based Marketplaces, and have adopted the Medicaid expansion, and in two states -- Utah and Virginia -- that rely…

  • Year Two of the ACA Coverage Expansions: On-the-Ground Experiences from Five States

    Issue Brief

    This brief provides an on-the-ground view of ACA implementation after completion of the second open enrollment period. It is based on 40 in-person interviews conducted in five states that have made different implementation choices, including three states (Colorado, Kentucky, and Washington) that have developed a State-based Marketplace and adopted the Medicaid expansion and two states (Utah and Virginia) that rely on the Federally-facilitated Marketplace (FFM) for enrollment of individuals into qualified health plans (QHPs) and…

  • Medicaid Delivery System and Payment Reform: A Guide to Key Terms and Concepts

    Fact Sheet

    There is wide state variation in Medicaid health care delivery and payment systems, as states design and combine service delivery models and payment approaches in a multitude of ways. To help those interested in understanding the diversity of Medicaid reform initiatives underway or in development in states across the country, this guide defines key terms.

  • Analysis Examines How Gaining Health Coverage Affected Consumers’ Lives in 2014

    News Release

    An analysis of a 2014 survey by the Kaiser Family Foundation finds that previously uninsured Americans who obtained health coverage that year experienced improved access to care and a decrease in financial insecurity, though they remained concerned about cost.  The analysis of the 2014 Kaiser Survey of Low-Income Americans and the ACA finds that about 11 million previously uninsured nonelderly adults obtained health coverage during 2014, the year the ACA’s new coverage options were fully…

  • Facing the Fallout From a King v. Burwell Ruling

    News Release

    With a Supreme Court decision on King v. Burwell looming, Drew Altman's latest column for The Wall Street Journal’s Think Tank plays out the politics of a ruling for the two major parties. All previous columns by Drew Altman are available.

  • Facing the Fallout From a King v. Burwell Ruling

    From Drew Altman

    With a Supreme Court decision on King v. Burwell looming, this Drew Altman column for The Wall Street Journal’s Think Tank plays out the politics of a ruling for the two major parties.

  • Kaiser–Commonwealth Fund Survey: Most Primary Care Providers Report Seeing More Medicaid or Newly Insured Patients Since January 2014, But Little Change in Ability to Provide Quality Care

    News Release

    As with the Public, Physicians' Views on Affordable Care Act Split Along Party Lines The first in a series of reports on a comprehensive new survey finds most primary care doctors, nurse practitioners, and physician assistants report an increase in Medicaid or newly insured patients since the Affordable Care Act's (ACA) major coverage provisions took effect, yet little change in their ability to provide high-quality care. Overall, 59 percent of physicians and 64 percent of…