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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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  • A Closer Look at the Courts’ Impact on Health Policy

    News Release

    In his latest column for The Wall Street Journal’s Think Tank, Drew Altman maps what the combined impact of the Supreme Court decision on the Affordable Care Act’s Medicaid expansion and a plaintiff’s win in Halbig would look like and discusses the impact of court decisions on health policy. All previous columns by Drew Altman are available online.

  • High-Risk Pools For Uninsurable Individuals

    Issue Brief

    For more than 35 years, many states operated high-risk pool programs to offer non-group health coverage to uninsurable residents. The federal government also operated a temporary high-risk pool program established under the Affordable Care Act (ACA) to provide coverage to people with pre-existing conditions in advance of when broader insurance market changes took effect in 2014. This issue brief reviews the history of these programs to provide context for some of the potential benefits and…

  • Visualizing Health Policy: Eligibility and Coverage Trends in Employer-Sponsored Health Insurance

    News Release

    This Visualizing Health Policy infographic looks at eligibility and coverage trends in employer-sponsored health insurance. Between 2000 and 2015, the share of workers covered by health benefits offered by their employers dropped from 63 percent to 56 percent, with some firms not offering coverage and some employees not enrolling when coverage is offered. The biggest decrease occurred among employees working for small firms (3-199 workers). Among people younger than 65, those with lower incomes continued to…

  • An image of text is an excerpt from Jennifer Tolbert's quick take which reads, "While a temporary period of allowing people to self-attest to their compliance with work requirements will ease the effects for some, the more restrictive definition of medical frailty adopted by the Trump Administration will be challenging for states to implement and could lead to more people falling through the cracks and losing coverage."

    CMS Requires More Restrictive Definition of Medical Frailty in New Medicaid Work Requirements Rule

    Quick Insights

    On June 1, 2026, the Centers for Medicare and Medicaid Services (CMS) issued an interim final rule on Medicaid work requirements that adopts a restrictive definition of medical frailty—differing from states’ early expectations. The more restrictive definition of medical frailty adopted by the Trump Administration will be challenging for states to implement and could lead to more people falling through the cracks and losing coverage.

  • The U.S. Economy and Changes in Health Insurance Coverage, 2000-2006

    Other Post

    Health Affairs Article: The U.S. Economy and Changes in Health Insurance Coverage, 2000-2006 A Foundation study featured as a web-exclusive Health Affairs article examines health coverage trends from 2000-2006 showing that over this period the dominant factor contributing to a rise in the uninsured population has been the decline in employer-sponsored insurance, even as the economy rebounded from the last recession. Access web-exclusive Health Affairs article

  • Health Reform and Communities of Color: Implications for Racial and Ethnic Health Disparities

    Issue Brief

    This issue brief examines the key provisions of the 2010 health reform law that will expand health coverage and are likely to improve access to care for people of color, as well as some of the other provisions that will likely have either a direct or indirect impact on health disparities. Issue Brief (.pdf)) Previous Version: November 2009 (.pdf)