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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 Analysis Finds the Affordable Care Act Mentioned in 14% of This Year’s Political Ads

    News Release

    Republican Ads Were Much More Likely to Mention ACA, Often in Spots that Also Hit Other Issues About 14 percent of political ads in all races airing this year through October 15 mention the Affordable Care Act, Obamacare or any of the law's specific provisions, mostly in a negative way, a new Kaiser Family Foundation study finds. Overall, about a quarter (26%) of political spots airing so far this year mention health care issues, including…

  • How the Midterms Factor Into Medicaid Expansion

    From Drew Altman

    In this column for The Wall Street Journal’s Think Tank, Drew Altman discusses how Democratic victories in several close gubernatorial races on Tuesday could revive efforts to expand Medicaid.

  • Data Note: Gearing Up For Round 2 of Open Enrollment: Some Lessons From Round 1

    Poll Finding

    As the second round of open enrollment approaches, policy makers, journalists, insurers and enrollment groups may want to keep in mind what health insurance shoppers told us about their experiences during the first open enrollment period. This data note examines selected findings from two Kaiser Family Foundation surveys that shed light on how people navigated the new options and choices available under the ACA during last fall’s open enrollment, with the hope of helping to…

  • What to Expect From the Next Congress on the ACA

    From Drew Altman

    In this column for The Wall Street Journal’s Think Tank, Drew Altman explains how Republican control of Congress will likely bring challenges to the Affordable Care Act in two flavors.

  • Assessing Americans’ Familiarity With Health Insurance Terms and Concepts

    Poll Finding

    With the approaching launch of the second open enrollment period for the Affordable Care Act’s (ACA) health insurance marketplaces and at a time when open enrollment is also happening for many job-based plans, the Kaiser Family Foundation conducted a nationally representative survey of 1,292 U.S. adults to shed light on Americans’ understanding of basic health insurance terms and concepts, and to identify gaps in awareness that could lead to difficulties for some individuals as they…

  • More Than Four in Ten Uninsured Don’t Know Basic Health Insurance Terms, Fewer Understand Complex Coverage Concepts

    News Release

    Kaiser Family Foundation Provides Consumer Resources to Fill Knowledge Gaps as the Second Open Enrollment Period Nears for the Affordable Care Act’s Marketplaces With open enrollment for the Affordable Care Act’s health insurance marketplaces days away, findings from a new Kaiser Family Foundation survey suggest that some people who stand to benefit from the law struggle to understand how coverage works. The survey finds more than four in 10 uninsured people could not correctly identify…

  • Kaiser Calculator Now Gives Consumers 2015 Zip Code-Specific Premium and Tax Credit Estimates for Marketplace Coverage

    News Release

    The Kaiser Family Foundation's Health Insurance Marketplace Calculator now includes zip code-specific data on 2015 health plans that are being sold through the Affordable Care Act’s insurance marketplaces during the open enrollment period beginning Saturday, Nov. 15. With the new tool, consumers around the nation can generate estimates of their health insurance premiums and government subsidies for 2015 plans that they purchase on their own through an ACA marketplace. The estimates are based on zip…

  • Change in Benchmark Silver Premiums, 2014 – 2015

    Feature

    Change in Benchmark Silver Premiums 2015 MAP_HI_and_MA.ppt Download Source Kaiser Family Foundation analysis of data from Healthcare.gov and insurer rate filings to state regulators. For more information see  “Analysis of 2015 Premium Changes in the Affordable Care Act’s Health Insurance Marketplaces” Sept. 2014.

  • How 13 Million Americans Could Lose Insurance Subsidies

    From Drew Altman

    This was published as a Wall Street Journal Think Tank column on November 19, 2014. Kaiser Family Foundation calculations of how many Americans could lose subsidies in 2016 depending on the Supreme Court’s ruling in King v. Burwell. The Supreme Court is expected to rule next year on King v. Burwell, the lawsuit in which the federal government’s authority to provide financial assistance to people who buy insurance in federally operated insurance exchanges is being challenged under a…

  • Web Briefing: Early Impacts of the Medicaid Expansion for the Homeless Population

    Event Date:
    Event

    The Affordable Care Act’s Medicaid expansion provides a significant opportunity to increase health coverage and improve access to care for individuals experiencing homelessness, who historically have had high uninsured rates and often have multiple, complex physical and mental health needs. On Monday, December 15, 2014, the Kaiser Family Foundation hosted a web briefing to examine the early impacts of the ACA’s Medicaid expansion on the homeless population, as well as opportunities and challenges looking forward.  The…