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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  • Escuché que hay una nueva oportunidad de inscripción especial para las personas de muy bajos ingresos. ¿Cómo funciona?

    FAQs

    Desde el 25 de agosto de 2025, se eliminó la oportunidad de inscripción especial que permitía a las personas con ingresos iguales o inferiores al 150% del nivel federal de pobreza inscribirse en la cobertura del mercado de seguros durante todo el año, simplemente por sus bajos ingresos. Las personas con este nivel de ingresos aún podrían calificar para la inscripción especial en otros eventos de inscripción especial, como cuando pierden la cobertura por pérdida…

  • 2021 Health Insurance Marketplace Calculator

    Interactive

    The Health Insurance Marketplace Calculator, updated with 2021 premium data and to reflect subsidies in the American Rescue Plan Act of 2021, provides estimates of health insurance premiums and subsidies for people purchasing insurance on their own in health insurance exchanges (or “Marketplaces”) created by the Affordable Care Act (ACA). With this calculator, you can enter your income, age, and family size to estimate your eligibility for subsidies and how much you could spend on…

  • Trends in the Use of Hospital and Provider Quality Ratings

    Poll Finding

    With a renewed emphasis on health care quality driven by the Affordable Care Act, this polling data note examines historical trends in Americans' reliance on quality ratings and how their perceptions have changed over time. Data Note (.pdf)

  • Implementing the ACA’s Medicaid-Related Health Reform Provisions After the Supreme Court’s Decision

    Issue Brief

    On June 28, 2012, the U.S. Supreme Court upheld the constitutionality of the Affordable Care Act (ACA). A majority of the Court also found the ACA’s Medicaid expansion unconstitutionally coercive of states, while a different majority of the Court held that this issue was fully remedied by limiting the Health and Human Services (HHS) Secretary’s enforcement authority. The practical effect of the Court's decision makes the Medicaid expansion optional for states. This brief addresses questions…

  • How Will Uninsured Children Be Affected By Health Reform?

    Issue Brief

    This brief examines uninsured children and how they could be affected by health reform, including estimates of how many might qualify for coverage under a Medicaid expansion, how many would be eligible for subsidies and how many would not be eligible for such help. Issue Brief (.pdf)

  • Health Care Reform Newsmaker Series: Sen. Orrin Hatch

    Event Date:
    Event

    This May 7, 2009 webcast features Sen. Orrin Hatch (R-Utah), senior member of the Senate Committee on Finance, and ranking Republican on the panel’s Subcommittee on Health Care. The briefing was part of the Health Care Reform Newsmaker series sponsored by the Kaiser Family Foundation, Families USA and the National Federation of Independent Business. The reporters-only briefings, designed to inform the public about prospects and options for health reform, feature a short presentation by an…

  • The Right Care at the Right Time: Are Retail Clinics Meeting a Need?

    Event Date:
    Event

    The Alliance for Health Reform and WellPoint, Inc. discuss the role of urgent care centers and retail clinics emerging within the health care system. Panelists will explore such questions as: Can savings and improved access to care be produced through alternative care settings? Will these settings reduce emergency room use for primary care? Do they have the potential to ease the shortage of primary care providers? Who is monitoring the quality of care being delivered…

  • Children and Oral Health: Assessing Needs, Coverage and Access

    Issue Brief

    This policy brief highlights the prevalence of dental problems among children and examines gaps in oral health coverage and access to dental care, as well as disparities by income and race/ethnicity. It also looks at out-of-pocket costs for dental care, explains the role of Medicaid and CHIP in dental care, coverage and access for children and describes the expansion of oral health coverage for children under the Affordable Care Act. Issue Brief (.pdf)