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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

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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  • Key Facts about the Uninsured Population

    Issue Brief

    The number and share of people without insurance grew in 2024, increasing for the first time since 2019, according to KFF's analysis of data from the American Community Survey (ACS). This issue brief describes trends in health coverage in 2024, examines the characteristics of the uninsured population , and summarizes the access and financial implications of not having coverage.

  • Me faltan algunos años para cumplir 65 años y ser elegible para Medicare, y mientras tanto me gustaría inscribirme en un plan del mercado de seguros. Soy inmigrante, residente legal, y he oído que hay u...

    FAQs

    En general, los inmigrantes con estatus legal (excepto los beneficiarios de DACA) pueden adquirir un plan en el mercado de seguros establecidos por la Ley de Cuidado de Salud a Bajo Precio (ACA). La nueva ley no afecta la elegibilidad para la cobertura del mercado de seguros para estos inmigrantes. Actualmente, dependiendo de sus ingresos y el tamaño de su hogar, podría ser elegible para subsidios para compensar el costo de sus primas. Sin embargo,…

  • 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.

  • An Employer Health Benefits Balance Sheet

    Perspective

    There seems to be growing interest in the question of how many employers will keep offering coverage to their full-time employees once the Affordable Care Act (ACA) is fully implemented in 2014, or instead will choose to stop offering coverage and pay a penalty. While there is some good analysis and plenty of conjecture, it is impossible to predict with any certainty how employers will react at this moment because some of the key rules…

  • Insurance Brokers and the Medical Loss Ratio

    Perspective

    In a close vote, the National Association of Insurance Commissioners (NAIC) recently adopted a resolution urging Congress and the Department of Health and Human Services (HHS) to exempt insurance broker and agent compensation from medical loss ratio (MLR) requirements or otherwise adjust the requirements to ease their effect. HHS last week released its final MLR rule, maintaining its original decision to count broker compensation as an administrative cost for insurers. H.R. 1206, a bill that…

  • Kaiser November Health Tracking Poll: Individual Elements of the ACA Popular with the Public

    Perspective

    After taking a negative turn in October, the public’s overall views on the Patient Protection and Affordable Care Act (ACA) returned to a more mixed status this month. Still, Americans remain somewhat more likely to have an unfavorable view of the law (44 percent) than a favorable one (37 percent). The Kaiser Family Foundation's November Health Tracking Poll also finds that individual elements of the law are viewed favorably by a majority of the public. The law’s…

  • The Fraying Link Between Work and Health Insurance: Trends in Employer-Sponsored Insurance for Employees, 2000-2007

    Report

    This analysis shows that employer-sponsored coverage began declining after 2000 due to an economic downturn that saw rising unemployment, declining family incomes and more workers moving into temporary work, part-time work and other employment arrangements where health benefits were not provided. Employer-sponsored coverage continued to decline after 2003 despite improvements in the economy and slower growth in health care costs. The decline in coverage was due both to falloffs in the share of employees with…

  • In Depth Analysis of Health Reform Issues

    Report

    These reports provide in-depth analysis related to the health reform debate. Additional reports will be added as they become available. Medicaid Expansion in Health Reform: National and State Estimates of Coverage and CostsThis analysis and public briefing examine the potential national and state-by-state impacts on Medicaid enrollment and spending of the expansion of coverage for low-income adults under the health reform law. Reform Calculator Estimates Premiums and Subsidies Available In 2014The Foundation's interactive health reform…

  • 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)