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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  • Kaiser Health Tracking Poll: October 2014

    Feature

    In the final Kaiser Health Tracking Poll before the 2014 midterm elections in November, the Affordable Care Act (ACA) continues to be just one of several issues on voters’ minds. Less than 1 in 10 registered voters identify the ACA as the most important issue to their vote, ranking behind the economy, dissatisfaction with government, education and the situation in Iraq and Syria. With the ACA’s second open enrollment period approaching, the poll also finds…

  • Analysis: Opportunities Under the ACA for Addressing Intimate Partner Violence Among Women With HIV

    News Release

    An estimated 36 percent of women in the U.S. report having experienced intimate partner violence (IPV), also called domestic violence, but among HIV positive women 55 percent report such experiences. A new Kaiser Family Foundation analysis looks at opportunities to address IPV in the Affordable Care Act (ACA) that could help women who are HIV positive or at risk for HIV. The analysis, HIV, Intimate Partner Violence and Women: New Opportunities Under the Affordable Care Act, looks…

  • Tax Subsidies for Private Health Insurance

    Issue Brief

    This brief describes the different forms of tax assistance for private health insurance, including subsidies offered through the Affordable Care Act's marketplaces and benefits for people who are self-employed or who have employer-based coverage. The brief also provides examples of how the subsidies work and how the amounts may differ by income and type of coverage.

  • Poll: Obamacare Is Not a Big Issue With Midterm Voters

    From Drew Altman

    In this column for The Wall Street Journal’s Think Tank, Drew Altman analyzes recent polling data on the Affordable Care Act and discusses why it will not be a significant factor in next week’s midterm election.

  • Questions for 2014

    From Drew Altman

    Today’s discussion of the Affordable Care Act (ACA) is focused on immediate implementation milestones leading up to 2014 when the law’s major provisions are set to kick in.  This is a critical period when the foundation for the ACA is being established and key building blocks such as the state Medicaid expansions, exchanges, and a host of regulations about other elements of the ACA being produced by HHS are getting our attention. But there is…

  • Health Reform Implementation Timeline

    Interactive

    The health reform implementation timeline is an interactive tool designed to explain how and when the provisions of the Affordable Care Act will be implemented over the next several years.

  • The California Endowment and the Kaiser Family Foundation Release “Health Reform Hits Main Street” Animation in Spanish

    News Release

    Health Reform Explained – En Español  MENLO PARK, Calif. (January 12, 2012) – Today, The California Endowment and the Kaiser Family Foundation are releasing a Spanish-language version of “Health Reform Hits Main Street,” the popular animation that explains the major provisions of the Affordable Care Act. Written and produced by the Kaiser Family Foundation, the Spanish-language version of the animated movie features narration by a partner of The Endowment, Dra. Isabel Gómez-Bassols, psychologist and host…

  • Ensuring the Health Care Needs of Women: A Checklist for Health Exchanges

    Issue Brief

    To inform the development of the state health insurance Exchanges under the Affordable Care Act, this checklist identifies key coverage, affordability and access issues that are important for women. Based on lessons learned from women’s health research and the Massachusetts experience, the checklist considers essential health benefits, implementation of no-cost preventive services including contraception, provider networks and affordability, outreach and enrollment efforts, and the importance of including gender and other demographic characteristics in data collection…