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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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  • Healthy Indiana Plan and the Affordable Care Act

    Fact Sheet

    This fact sheet provides an overview of the Healthy Indiana Plan, Indiana's 1115 waiver demonstration project, and how it relates to the Affordable Care Act's Medicaid expansion.

  • Obamacare y Usted: Si no tiene seguro médico

    Fact Sheet

    Obamacare ha creado nuevas maneras de tener cobertura de salud. Si usted no tiene seguro médico a través de su empleador, seguramente pueda obtenerlo a través del nuevo Mercado de los Seguros Médicos (o "intercambio") en su estado. Nuevas opciones de cobertura Llenando una única aplicación, usted aprenderá sobre sus opciones de planes médicos y los costos, y si califica para tener cobertura a través de Medicaid o para recibir un subsidio para comprar un…

  • Obamacare y Usted: Si tiene una condición preexistente

    Fact Sheet

    Si usted o alguien de su familia tiene una condición de salud preexistente - como una enfermedad cardíaca, asma o inclusive un embarazo - usted encontrará que es mucho más fácil obtener cobertura o cambiar de plan, comenzando en el 2014. Obamacare prohíbe a las aseguradoras negar cobertura a personas con condiciones preexistentes, o condiciones físicas o mentales que existan antes que haya comenzado la cobertura. Las aseguradoras tampoco pueden negarse a pagar por otro…

  • Obamacare y Usted: Si tiene seguro médico a través de un empleador

    Fact Sheet

    Si usted tiene cobertura de beneficios de salud a través de su empleador o del empleador de un miembro de su familia, usted probablemente pueda mantener esa cobertura y no tener que hacer ningún cambio. En la mayoría de los casos, la cobertura de su empleador satisface los requerimientos de la ley sobre la obtención de seguro. Cambios en la cobertura del empleador Algunas características de la cobertura de su empleador pueden ya haber cambiado…

  • What’s at Stake in a Potential Repeal of the ACA Medicaid Expansion?

    News Release

    President-elect Trump and Republican leaders in Congress have vowed to repeal the Affordable Care Act (ACA) and replace it with an alternative plan. There are now 32 states (including DC) that have adopted the ACA’s Medicaid expansion. While the details of a repeal-and-replace plan are not yet available to assess its impact, a new brief reveals what’s potentially at stake for Medicaid in the debate by examining the changes in health coverage and financing that…

  • The Health Care Plan Trump Voters Really Want

    From Drew Altman

    In a New York Times op-ed, Drew Altman draws on observations from focus groups in rust belt states of people in the Affordable Care Act (ACA) marketplaces who voted for President-elect Trump and say they may not like their coverage under the ACA but could like Republican replacement plans even less.

  • Private Contracts Between Doctors and Medicare Patients: Key Questions and Implications of Proposed Policy Changes

    Issue Brief

    Changes in Medicare’s private contracting laws could have significant implications for beneficiaries, doctors, and the Medicare program. This brief summarizes the three options that physicians and practitioners currently have for charging Medicare patients, explains how private contracting works in Medicare under current law, and reviews current proposals on changes to private contracting in Medicare, as well as their implications for patients, physicians, and the Medicare program.