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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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  • What to Watch in the 2024 ACA Open Enrollment

    Policy Watch

    With the start of the 2024 Affordable Care Act open enrollment, the Marketplaces have been operating for a full decade and are heading into their eleventh year. This policy watch outlines changes to watch out for during 2024 Open Enrollment.

  • As Open Enrollment Begins, KFF’s Updated Subsidy Calculator and 300+ FAQs Demystify ACA Marketplaces

    News Release

    A recent KFF survey found one-in-three people with Marketplace coverage say it is somewhat or very difficult to find a plan that meets their needs. With ACA enrollment beginning November 1, KFF has updated its most-used Marketplace tools and published an explainer on key changes and issues to watch in this year’s open enrollment season. Tools for Open Enrollment>> KFF’s Health Insurance Marketplace Calculator provides estimates of 2024 health insurance premiums and subsidies for people…

  • The Pandemic’s Impact on Children’s Mental Health

    News Release

    The pandemic has taken a heavy toll on the nation’s mental health, and a new issue brief shows that children are also facing worsening emotional and cognitive health. The brief examines factors contributing to worsening mental health and substance use outcomes among children and adolescents during the pandemic, looking closely at those who are at higher risk for negative mental health impacts, such as LGBTQ youth and children of color. A review of recent research…

  • Recent and Anticipated Actions to Reverse Trump Administration Section 1557 Non-Discrimination Rules

    Issue Brief

    The Biden Administration has started taking steps to reverse Trump Administration policy and regulations that significantly narrowed the implementation and administrative enforcement of Section 1557, the Affordable Care Act’s nondiscrimination provision, particularly as the regulations apply to gender identity and sexual orientation. In addition, several lawsuits challenging the regulations, which were initially issued by the Obama Administration and later substantially revised by the Trump Administration, are pending. Section 1557 prohibits discrimination based on race, color,…

  • What Trump’s 2024 Victory Means for Medicaid

    Quick Insights

    While Medicaid did not receive a lot of attention during the campaign, if cuts to Social Security and Medicare are largely off the table, Medicaid is the likely source of funding to extend expiring tax cuts.

  • The New Health Care Agenda: Gridlock, Lots of Hearings

    From Drew Altman

    In an Axios column, Drew Altman analyzes what the midterm election means for the health policy agenda between now and 2020--mostly political positioning and gridlock in Congress, with most of the action affecting people in the states. 

  • More Insurers Are Participating in the ACA Marketplaces in 2019

    News Release

    Insurer participation in the Affordable Care Act’s health insurance marketplaces is rising in 2019, finds a new analysis from KFF (the Kaiser Family Foundation).The increase follows consecutive years of improving insurance company profits and shows up in several different ways: Going into 2019, 608 counties nationwide are gaining at least one insurer in the marketplace, while only five counties will lose an insurer. In 2019, roughly 17 percent of enrollees (living in 37 percent of…

  • Analysis: Marketplace Plans Denied an Average of Nearly One in Five Claims in 2017 with Wide Variations across Insurers

    News Release

    Healthcare.gov marketplace insurers denied nearly one out of every five claims (19%) submitted for in-network services in 2017, and enrollees only appeal a tiny share (0.5%) of those denied claims, a KFF analysis of recently released claims data finds. The analysis finds a huge variation across insurers, with average denial rates as low as 1 percent and as high as 45 percent. Denial rates also vary across states, though individual insurers in the same state…

  • Web Briefing for Journalists: Key Issues Ahead of Marketplace Open Enrollment

    Event Date:
    Event

    Marketplace open enrollment, the period during which consumers can shop for health plans or renew existing coverage through the Affordable Care Act’s health insurance marketplaces, begins on Nov. 1. Recent policy changes at the state and federal levels have the potential to impact individuals and families purchasing health insurance for 2019. It’s the first open enrollment period following Congress’ repeal of the ACA’s individual mandate penalty, the requirement that individuals have minimum essential health coverage…

  • New Analysis Finds US Individual Insurance Market Grew 46 Percent in First Full Year of Affordable Care Act

    News Release

    A new analysis from the Kaiser Family Foundation finds that the nation's individual insurance market grew 46 percent to 15.5 million people in the first year plans could be purchased through the Affordable Care Act's marketplaces, which offer premium assistance to low- and moderate-income people. Four states -- California, Florida, Texas and Georgia -- accounted for almost half of the enrollment growth. In six states, the number of people covered in the individual market increased…