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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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  • Analysis: 4.7 Million Uninsured People Nationally Could Get a No-Premium Bronze Plan in the ACA Marketplace,Though Deductibles Would be High

    News Release

    As the Affordable Care Act’s open enrollment period nears an end in most areas this week, a new KFF analysis finds that 4.7 million currently uninsured people could get a bronze-level plan for 2020 and pay nothing in premiums after factoring in tax credits, though the deductibles would be high. That works out to 28 percent of the 16.7 million uninsured individuals who are potential customers for coverage through ACA marketplaces. Half of the uninsured…

  • What Iowa and New Hampshire tell us about Medicare-for-All

    From Drew Altman

    In this Axios column, Drew Altman analyzes data from the New Hampshire exit poll showing that support for Medicare-for-all played a role in the primary while broader support for a more moderate plan may be a signal about the general election.

  • Republican Voters Have Moved On from Hating the ACA

    From Drew Altman

    In this Axios column, Drew Altman analyzes KFF’s tracking poll and shows that the ACA is now yesterday’s issue for Republicans. They have shifted their sights to Medicare-for-all...at least for this election season.

  • How Many Uninsured Adults Could Be Reached If All States Expanded Medicaid?

    Issue Brief

    As more people lose their jobs and accompanying ESI, more may fall into the coverage gap, particularly starting in 2021 after unemployment benefits expire for many who have lost their jobs and incomes are likely to drop below the minimum threshold for marketplace subsidies. This analysis estimates how many uninsured adults—including those uninsured even before the pandemic and those who could become uninsured as a result of it— could become eligible for Medicaid if states…

  • 4.7 Million Uninsured Adults Could Become Eligible for Medicaid by 2021 if All Remaining States Expanded the Program under the ACA

    News Release

    About 4.7 million uninsured adults could gain eligibility for Medicaid by 2021 if the 14 remaining non-expansion states were to expand Medicaid under the Affordable Care Act, a new KFF analysis finds. That figure includes an estimated 2.8 million adults who already were uninsured prior to the coronavirus pandemic and would fall in the “coverage gap” – meaning they have incomes too high to qualify for Medicaid but too low for ACA marketplace subsidies –…

  • The ACA is Doing Fine Without a Mandate Penalty

    From Drew Altman

    In an Axios column, Drew Altman explains that the elimination of the Affordable Care Act’s individual mandate penalty has had little impact on how the ACA’s insurance markets are working, showing that “the marketplaces continue to function, even when 'severed' from the mandate penalty,” and undercutting a central argument in the lawsuit seeking to strike down the entire law.

  • New Analysis Shows States with Medicaid Expansion Experienced Declines in Uninsured Hospital Discharges

    Issue Brief

    Expanded health insurance coverage through the Affordable Care Act (ACA) is having a major impact on hospital payer mix across the country. Similar to other reports recently released, new data examining hospital discharges in 16 states with data through the second quarter in 2014 show increases in Medicaid and declines in uninsured or self-pay discharges in states that implemented the Medicaid expansion. These trends hold true for all hospital discharges as well as for specific…

  • The Wisconsin Health Care Landscape

    Fact Sheet

    Wisconsin has long been a leader among states in expanding coverage to its low-income residents since even before the major coverage provisions of the Affordable Care Act (ACA) took effect on January 1, 2014. While Governor Scott Walker decided not to adopt the Medicaid expansion, thousands of previously uninsured Wisconsinites have enrolled in health coverage through the state’s broad BadgerCare Medicaid waiver, which increases coverage to low-income populations, and through the new Health Insurance Marketplace.…