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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  • Health-Care Deductibles Climbing Out of Reach

    From Drew Altman

    In this column for The Wall Street Journal's Think Tank, Drew Altman explores the trend of higher deductibles in health plans and discusses a new analysis showing that many people with private insurance don’t have sufficient financial resources to pay a mid- or high-range deductible.

  • Americans’ Views on the Affordable Care Act Hold Steady, with 43% Now Viewing It Favorably and 42% Unfavorably

    News Release

    Few Report Seeing Comparative Information about Health Care Prices and Quality, and Less Than 10% Use It Pocketbook and Consumer Issues Top Public's List of Priorities for the President and Congress, Ahead of Several ACA-Related Issues This month's Kaiser Health Tracking Poll finds public opinion on the health care law holding steady and closely divided. The share expressing a favorable view (43%) exceeds the share with an unfavorable view (42%) for the first time since…

  • Coverage Expansions and the Remaining Uninsured: A Look at California During Year One of ACA Implementation

    Report

    California is a bellwether state for understanding the impact of the Affordable Care Act (ACA). Much attention has been paid to enrollment in California's new coverage options, such as the Medicaid expansion (Medi-Cal) and plans sold through ACA marketplaces (Covered California), and to changes in the uninsured from 2013 to 2014. However, less is known about how this coverage has affected people’s access to care and financial security, and why others remain uninsured. This report,…

  • Round 2 on the Legal Challenges to Contraceptive Coverage: Are Nonprofits “Substantially Burdened” by the “Accommodation”?

    Issue Brief

    The Affordable Care Act (ACA) requires most private health insurance plans to provide coverage for a broad range of preventive services including Food and Drug Administration (FDA) approved prescription contraceptives and services for women. Since the implementation of the ACA contraceptive coverage requirement in 2012, over 200 corporations have filed lawsuits claiming that including coverage for contraceptives or opting for an “accommodation” from the federal government violates their religious beliefs. This brief explains the legal…

  • Are More Americans Benefiting From Obamacare Than Realize It?

    News Release

    In his latest column for The Wall Street Journal’s Think Tank, Drew Altman discusses why many people may not know whether or not they are benefiting from the Affordable Care Act. All previous columns by Drew Altman are available online.

  • Medicaid Delivery System and Payment Reform: A Guide to Key Terms and Concepts

    Fact Sheet

    There is wide state variation in Medicaid health care delivery and payment systems, as states design and combine service delivery models and payment approaches in a multitude of ways. To help those interested in understanding the diversity of Medicaid reform initiatives underway or in development in states across the country, this guide defines key terms.