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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

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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?

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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.

  • Un año después de las tormentas: la recuperación y la atención de salud en Puerto Rico y las Islas Vírgenes de EE.UU. (Informe)

    Issue Brief

    Un año después que los huracanes Irma y María tocaran tierra, Puerto Rico y las Islas Vírgenes de EE.UU. (USVI) todavía sienten los efectos de las tormentas. Basándose en entrevistas con partes interesadas clave y en informes públicos, este reporte proporciona una visión general del estado de recuperación y los esfuerzos de preparación para la actual temporada de huracanes, un año después de las tormentas, enfocándose en los sistemas de atención de salud de los…

  • Medicaid: What to Watch in 2018 from the Administration, Congress, and the States

    Issue Brief

    Medicaid provides health insurance coverage for about one in five Americans and is the largest payer for long-term care services in the community and nursing homes. Efforts in 2017 to repeal and replace the Affordable Care Act (ACA) and cap federal financing for Medicaid were unsuccessful but help to set the stage for 2018. As 2018 begins, there is a focus on administrative actions using Medicaid Section 1115 demonstration waivers, state actions on Medicaid expansion,…

  • The Great Medicaid Divide

    From Drew Altman

    In his Axios column, Drew Altman examines how the core views Republicans have about Medicaid differ from those of Democrats and Independents, and how those views drive the policy changes they are proposing for the program.

  • Medicaid’s Role in Kentucky

    Fact Sheet

    This fact sheet provides data on Medicaid's role in Kentucky. It describes how ending the enhanced match for Medicaid expansion and implementing a per capita cap or block grant would affect Kentucky.

  • Individual Insurance Market Performance in 2018

    Issue Brief

    Individual market insurers are expecting to return to consumers a record total of about $800 million in medical loss ratio rebates for 2018, a year in which the insurance companies posted their best annual financial performance under the Affordable Care Act to date. Financial results for 2018 suggest that insurers in the individual market are generally returning to or exceeding profitability levels seen before 2014, when ACA insurance market rules took effect, including the requirement…

  • Medicare-for-All and Public Plan Buy-In Proposals: Overview and Key Issues

    Issue Brief

    This issue brief compares eight Medicare-for-All and public plan option bills that have been introduced in the 115th Congress. The brief describes the range of proposals on the table and raises key questions related to how these proposals could affect coverage, out-of-pocket costs, existing coverage, payments to providers, as well as overall costs and financing, and potential tradeoffs.

  • How Has ACA Marketplace Enrollment Changed Across States in 2026?

    Issue Brief

    Following several years of rapid enrollment growth in the Affordable Care Act (ACA) Marketplaces that corresponded with temporary enhanced premium tax credits, enrollment fell for the first time in seven years in 2026, when those tax credits expired. Every state except for New Mexico saw a drop in ACA Marketplace enrollment from 2025 to 2026. State-based Marketplaces that run their own enrollment platforms, including those that partially offset the expiring federal enhanced tax credits, generally…