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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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  • How Primary-Care Physicians Are Handling the Influx of Newly Insured

    From Drew Altman

    In this column for The Wall Street Journal's Think Tank, Kaiser’s President Drew Altman is joined by The Commonwealth Fund's President David Blumenthal to discuss the impact of the Affordable Care Act’s coverage expansion on the primary care delivery system.

  • Summary of the Affordable Care Act

    Fact Sheet

    This document summarizes the comprehensive 2010 health reform law, often called the Affordable Care Act or ACA, including changes made to it by subsequent legislation, with a focus on provisions to expand coverage, control costs, and improve delivery systems.

  • The Health Care Views and Experiences of Rural Americans: Findings from the Kaiser Family Foundation/Washington Post Survey of Rural America

    Report

    In partnership with The Washington Post, the Kaiser Family Foundation conducted the Survey of Rural America to gauge the views and experiences of people living in small towns and rural areas across the United States, and how they are similar or different from those in urban and suburban settings. This brief explores where health care fits in rural residents' political views, including attitudes toward Republican plans to repeal and replace the ACA as well as…

  • Analysis: Before ACA Benefits Rules, Care for Maternity, Mental Health, Substance Abuse Most Often Uncovered by Non-Group Health Plans

    News Release

    Three in four health plans in the non-group insurance market did not cover delivery and inpatient maternity care in 2013, before the Affordable Care Act (ACA) essential health benefits requirement took effect, finds a new Kaiser Family Foundation analysis. Other major benefits most often left uncovered before the ACA include substance abuse disorder services (inpatient and outpatient services each not covered by 45% of 2013 non-group plans) and mental/behavioral health services (inpatient and outpatient services…

  • What to Look for in 2017 ACA Marketplace Premium Changes

    Perspective

    This brief discusses the key factors that will influence the rate changes that insurers are requesting in 2017 Affordable Care Act (ACA) Marketplaces, including current premiums, forecasted enrollment changes, increases in price and use of services, changes in policy design or network, changes in law or regulation, and competition.

  • Survey of Non-Group Health Insurance Enrollees, Wave 3

    Poll Finding

    The survey, conducted shortly after the close of the Affordable Care Act’s third open enrollment period, is the third in a series exploring the experiences of individuals who purchase their own health insurance in the nongroup market, including coverage purchased both inside and outside the ACA’s marketplaces. It examines enrollees’ satisfaction with their health plans’ premiums, deductibles, and provider networks, their views on affordability, shopping experiences, and problems encountered with their plans.

  • ACA Coverage Expansions and Low-Income Workers

    Issue Brief

    This brief highlights low-income workers and the impact of ACA coverage expansions on this population. Low-income workers may not have access to jobs that provide full-time, full-year employment or jobs with comprehensive benefit packages, including health insurance. Medicaid plays an important role in providing health coverage for low-income workers, and coverage expansions implemented under the ACA have produced substantial coverage gains for low-income workers and a corresponding reduction in the uninsured. However, low-income workers in…

  • Two Year Trends in Medicaid and CHIP Enrollment Data: Findings from the CMS Performance Indicator Project

    Issue Brief

    This brief provides an overview of recent trends in Medicaid and CHIP enrollment as of January 2016, based on data from the Centers for Medicare and Medicaid Services (CMS) produced as part of its Performance Indicator Project. The project was designed to provide timely data on Medicaid and CHIP eligibility and enrollment that are intended to help strengthen data-driven program management and oversight efforts at both the national and state level. They also provide insight…

  • Comparison of Medicare Provisions in Recent Bills and Proposals to Repeal and Replace the Affordable Care Act

    Issue Brief

    Repealing and replacing the Affordable Care Act is a top priority of the Trump Administration and the Republican leadership, which could have implications for the Medicare program. This brief provides a side-by-side comparison of the Medicare-related provisions in six bills and proposals that would repeal the ACA, excluding proposals that would not directly affect Medicare.