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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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  • Health Affairs Article: Beyond Incrementalism? SCHIP and the Politics of Health Reform

    Report

    This article examines the political and legislative history of the Children's Health Insurance Program and analyzes the lessons for policymakers who are contemplating broader health care reform. It was published online in the journal Health Affairs and was authored by Jonathan Oberlander, an associate professor, social medicine and health policy and management, at the University of North Carolina at Chapel Hill, and Barbara Lyons, a vice president of the Kaiser Family Foundation and deputy director…

  • Key Findings: Kaiser Health Tracking Poll — November 2009

    Poll Finding

    This document contains the key findings from the November Health Tracking Poll. The survey was designed and analyzed by public opinion researchers at the Kaiser Family Foundation and was conducted November 5 through November 12, 2009, among a nationally representative random sample of 1,203 adults ages 18 and older. Telephone interviews conducted by landline (802) and cell phone (401, including 112 who had no landline telephone) were carried out in English and Spanish. The margin…

  • Pulling It Together: The Message from Massachusetts

    Perspective

    The Massachusetts special election has roiled the political world and profoundly affected the prospects for health reform just when it looked like passage was a lock.  Efforts are underway to put health reform legislation back together again on Capitol Hill, but not since powerful Ways and Means Chair Wilbur Mills fell into the Tidal Basin with Fanne Foxe in 1974, halting momentum on a deal on health reform that seemed ready to happen, has something this unexpected so affected…

  • What the Actuarial Values in the Affordable Care Act Mean

    Issue Brief

    The Patient Protection and Affordable Care Act (PPACA) establishes four levels of coverage based on the concept of "actuarial value," which represents the share of health care expenses the plan covers for a typical group of enrollees. As plans increase in actuarial value – bronze, silver, gold, and platinum – they would cover a greater share of enrollees' medical expenses overall, though the details could vary across plans. The levels of coverage provided for in…

  • Health Provisions in the 2025 Federal Budget Reconciliation Law

    Issue Brief

    On July 4, President Trump signed the budget reconciliation bill, previously known as the “One Big Beautiful Bill Act,” into law. This summary provides background, description, budgetary impact and related information on the health care provisions of the law in four categories: Medicaid, the Affordable Care Act, Medicare and Health Savings Accounts (HSAs).

  • Analysis of UnitedHealth Group’s Premiums and Participation in ACA Marketplaces

    Issue Brief

    This analysis looks at how a potential withdrawal by UnitedHealth Group from the Affordable Care Act (ACA) marketplaces in 2017 could impact insurer competition and premiums, finding a significant impact in some markets, though it would have a minimal effect on the average benchmark premium nationwide, The impacts of a UnitedHealth withdrawal would vary considerably by state and market area, with a more pronounced effect in rural areas. Since UnitedHealth often is not one of…

  • Insurer Competition, Monthly Premiums Could Be Affected in Some Markets if UnitedHealth Group Exits ACA Marketplaces

    News Release

    A withdrawal by UnitedHealth Group from the Affordable Care Act (ACA) marketplaces in 2017 could have a significant impact on insurer competition and premiums in some markets, though it would have a minimal effect on the average benchmark premium nationwide, according to a new analysis from the Kaiser Family Foundation. Late last year, UnitedHealth announced that it experienced significant financial losses in ACA compliant plans and that it would decide about future participation in ACA…

  • Visualizing Health Policy: Eligibility and Coverage Trends in Employer-Sponsored Health Insurance

    Other Post

    This Visualizing Health Policy infographic looks at eligibility and coverage trends in employer-sponsored health insurance. Between 2000 and 2015, the share of workers covered by health benefits offered by their employers dropped from 63 percent to 56 percent, with some firms not offering coverage and some employees not enrolling when coverage is offered. The biggest decrease occurred among employees working for small firms (3-199 workers). Among people younger than 65, those with lower incomes continued to…

  • ACA Coverage and the Changing Labor Market: Voices from the Field

    Issue Brief

    This brief highlights voices from adult focus group participants with low and moderate incomes who gained Medicaid or Marketplace coverage following implementation of the ACA. It focuses on work, including work status, the new labor market, job benefits, and the role of ACA coverage for those with non-traditional jobs.

  • Clinton-Sanders Contest Fuels Democratic Support for Expanding Obamacare

    News Release

    In his latest column for The Wall Street Journal’s Think Tank, Drew Altman discusses how the debate between Hillary Clinton and Bernie Sanders about how to get to universal coverage has generated more support among Democrats for expanding the Affordable Care Act (and less support for the law as is).