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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 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.

  • Patient Cost-Sharing in Marketplace Plans, 2016

    Issue Brief

    This brief and accompanying slides examine cost sharing - deductibles, copayments and coinsurance - in 2016 insurance plans sold on the Affordable Care Act's (ACA) federally-facilitated marketplaces. The analysis looks at out-of-pocket limits, as well as cost sharing for hospital stays, physician visits, emergency room visits, and prescription drugs, for plans across the metal levels (platinum, gold, silver and bronze).

  • Most Americans Report a Personal Connection to Those Who Have Abused Prescription Painkillers; Whites More Likely To Be Affected Than Blacks or Hispanics

    News Release

    Poll Finds 9% Say a Family Member or Close Friend Died of an Overdose; 27% Say Either They or Someone Close to Them Has Been Addicted On the ACA This Month, 45 Percent View the Law Unfavorably and 38 Percent View It Favorably With prescription painkiller abuse garnering more attention from the media and policymakers, the latest Kaiser Family Foundation Health Tracking Poll finds most Americans have a personal connection to the issue. In total,…

  • 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…

  • Some Can Get Marketplace Plans With No Premiums,Though With Higher Deductibles and Cost-Sharing

    News Release

    Many low-income consumers who are eligible for federal financial help under the Affordable Care Act can get a bronze-level plan and pay nothing out-of-pocket in premiums in more than 2,000 counties next year, depending on their annual income, according to a new analysis from KFF (the Kaiser Family Foundation). Such plans come with higher deductibles and out-of-pocket maximums, however. The analysis finds that the ACA’s premium tax credits would cover the full premium of the lowest-cost bronze…

  • 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…

  • Abortion Coverage in the ACA Marketplace Plans: The Impact of Proposed Rules for Consumers, Insurers and Regulators

    Issue Brief

    On November 7, 2018, a day after the 2018 midterm elections, the Trump Administration issued a proposed regulation to address “Exchange Program Integrity.” A major element of this proposed rule would affect insurers, consumers, and state insurance regulators in the states that either allow or require abortion coverage. The Affordable Care Act (ACA) allows states to ban plans from offering abortion as a benefit on their Qualified Health Plans (QHPs) and requires plans that cover…