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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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  • New Kaiser Survey Finds Eleven Million Newly Insured Adults As of Mid-December, But Nearly Half Who Remained Uninsured One Year After Full Implementation of the Affordable Care Act Were Eligible for Medicaid or Marketplace Tax Credits

    News Release

    Many Of The Remaining Uninsured Say They Didn’t Seek Coverage or Considered It Too Expensive, While Others Were Told (Or Believed) They Were Not Eligible About 11 million adults had become newly insured under the Affordable Care Act by mid-December 2014, according to a new national survey of more than 10,000 adults by the Kaiser Family Foundation.  Nearly half of the approximately 30 million adults who remained uninsured were eligible for assistance under the law,…

  • How Have Insurers Fared Under the Affordable Care Act?

    Perspective

    This analysis tracks the financial performance of insurers in the individual market by evaluating trends in the medical loss ratio (MLR) in the pre-ACA landscape from 2010 to 2013 and estimates the MLR for the first full year of Affordable Care Act implementation in 2014. Findings suggest that although performance varied among insurers, insurers overall had roughly comparable financial performance in 2014 as in recent prior years.

  • Updated for 2015: Tool Displays By Locality the Share of Potential ACA Federal Marketplace Enrollees That Signed Up

    News Release

    An interactive tool from the Kaiser Family Foundation is now updated with 2015 data, allowing users to view on a local level the share of potential enrollees who signed up for a health plan in a federally-based marketplace under the Affordable Care Act. With Mapping Marketplace Enrollment, users can also compare the number of potential and actual enrollees – and the percentage that signed up for a plan -- in 2014 and 2015 within 100,000-resident…

  • Facing the Fallout From a King v. Burwell Ruling

    From Drew Altman

    With a Supreme Court decision on King v. Burwell looming, this Drew Altman column for The Wall Street Journal’s Think Tank plays out the politics of a ruling for the two major parties.

  • Media Availability on the U.S. Supreme Court’s King v. Burwell Decision

    Event Date:
    Event

    The Kaiser Family Foundation held a media-only conference call with key experts on the Affordable Care Act (ACA), state marketplaces and more to explain the U.S. Supreme Court's decision in the King v. Burwell case and to answer questions about its implications. The petitioners in the case are challenging the legality of premium and cost-sharing subsidies for low- and middle-income people buying health plans in 34 states where the federal government rather than the state…

  • After King v. Burwell Ruling, Health Law Issues Involve Implementation

    News Release

    After today’s Supreme Court ruling upholding the Affordable Care Act’s federal subsidies, Drew Altman's latest column in The Wall Street Journal's Think Tank explores what the decision means and what’s next for the health law. All previous columns by Drew Altman are available.

  • Visualizing Health Policy: Premium Subsidy Scenarios Under Obamacare

    Other Post

    This month’s Visualizing Health Policy infographic shows 3 scenarios that illustrate the cost of health insurance under the Affordable Care Act for families in different circumstances, both before and after premium subsidies (in the form of a tax credit).

  • ACA Open Enrollment: If You Are Low-Income

    Fact Sheet

    This fact sheet explains 2020 health coverage options that may be available to people who have low incomes, including Medicaid coverage or individual insurance plans through Affordable Care Act (ACA) marketplaces.

  • Obamacare and You: If You Have Medicare…

    Fact Sheet

    This short explainer highlights some of the key information for people with Medicare about how Affordable Care Act, also known as Obamacare, may affect them.

  • Obamacare y Usted: Si tiene bajos ingresos y puede calificar para Medicaid

    Fact Sheet

    Obamacare crea muchas formas de obtener cobertura de salud. Usted puede aprender sobre sus opciones llenando una única aplicación. Así, se le dirá si califica para cobertura gratis o a bajo costo a través del programa Medicaid, o a través de los nuevos Mercados de Seguros Médicos que han sido establecidos en cada estado. Usted debería aplicar para cobertura aunque en el pasado no haya tenido la capacidad de tenerla a través del Medicaid o…