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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

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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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  • Most of the Public Oppose Major Federal Cuts to Health Agencies and Programs and Say They Have Been Made “Recklessly”

    News Release

    As the Trump administration and Congress pursue broad cuts to federal health agencies and budgets, most of the public, including some Republicans, oppose deep budget and staffing cuts to federal health programs and agencies, a new KFF Health Tracking Poll finds. Across a range of questions, large majorities of Democrats and independents oppose the Trump administration’s major cuts to federal health agencies and programs, while Republicans are more supportive. Those who identify with President Trump’s…

  • Data Note: Are Nonprofits Requesting an Accommodation for Contraceptive Coverage?

    Issue Brief

    The Affordable Care Act (ACA) requires most private health insurance plans to provide coverage for a broad range of preventive services, including most contraceptives for women. This policy was at the center of a Supreme Court case brought forward by for-profit corporations (Hobby Lobby and Conestoga) that successfully claimed that the contraceptive coverage requirement violated their religious rights. Last month, the Supreme Court agreed to hear yet another challenge (Zubik v Burwell) to the contraceptive…

  • A Guide to Understanding Medicaid Expansion Waivers as States Debate What to Do Under the ACA

    News Release

    With the recent governors’ elections in Kentucky and Louisiana refocusing attention on state Medicaid expansion decisions, a newly updated issue brief from the Kaiser Family Foundation provides an overview of the waivers obtained by six states – Arkansas, Iowa, Michigan, Indiana, New Hampshire and Montana -- that are pursuing alternative Medicaid expansions under the Affordable Care Act.

  • 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…

  • 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.

  • Health Care and the Candidates in the 2018 Midterm Elections: Key Issues and Races

    Issue Brief

    Introduction With the 2018 midterm election season in full swing, health care has emerged as one of the top issues for voters. The issue is playing a prominent role in many House, Senate, and gubernatorial races, and health-related measures have made it onto the ballot in several states. Democratic candidates, in particular, have made health care a central part of their campaigns and a focus of their political ads, highlighting popular provisions in the Affordable…

  • Mapping Pre-existing Conditions across the U.S.

    Issue Brief

    This brief estimates the share of adults with pre-existing conditions by metropolitan and micropolitan statistical area (MMSA), and finds that in some areas, nearly four in ten have so-called declinable medical conditions that could lead to denials of individual insurance coverage based on pre-ACA underwriting guidelines.