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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

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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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  • How Will the Uninsured in the District of Columbia Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in District of Columbia, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in District of Columbia are eligible for Medicaid…

  • How Will the Uninsured in Illinois Fare Under the Affordable Care Act?

    Fact Sheet

    This state report explains how the ACA expands coverage in Illinois, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people in Illinois are eligible for Medicaid or financial assistance in…

  • How People Get Covered

    Feature

    How-People-Get-Covered-HEALTHREFORM Download Source Kaiser Family Foundation  

  • Market Share of Largest Insurance Carrier in the Individual Insurance Market, 2010

    Feature

    Market Share of Largest Insurance Carrier in the Individual Insurance Market, 2010 Download Source Kaiser Family Foundation analysis of 2010 insurer filings to the National Association of Insurance Commissioners and the California Department of Managed Health Care using the Mark Farrah Associates Health Coverage Portal TM. Market share was calculated as the percent of the state’s individual insurance market enrollment accounted for by each parent company (measured in member months)  

  • Health Reform Quiz

    Feature

    Take our short, 10-question quiz to test your knowledge of the law, and then share your results with friends on Twitter or Facebook.

  • A Profile of Health Insurance Exchange Enrollees

    Report

    The Patient Protection and Affordable Care Act calls for the creation of Health Insurance Exchanges in all states by January 1, 2014. The exchanges are a critical element of the health reform law, aimed at helping individuals and families shop for and purchase health insurance on their own with additional assistance for lower-income individuals and families. The Congressional Budget Office has estimated that approximately 24 million people will purchase coverage through the state health exchanges…

  • Providing Outreach and Enrollment Assistance: Lessons Learned from Community Health Centers in Massachusetts

    Issue Brief

    As states and communities gear up to provide outreach and enrollment assistance under the ACA, the enrollment assistance experience of health centers in Massachusetts, where a major expansion of health coverage was implemented six years ago, offers valuable lessons that can help to inform current and emerging efforts by health centers and other community-based organizations to reach and enroll millions of low-income, uninsured Americans in health insurance.

  • Medicaid Expansion Through Marketplace Premium Assistance

    Fact Sheet

    This fact sheet compares the two Medicaid premium assistance authorities (state plan option and demonstration waiver) and identifies key beneficiary protections in Medicaid expansion premium assistance programs.

  • Getting into Gear for 2014: An Early Look at Branding and Marketing of New Health Insurance Marketplaces

    Issue Brief

    Based on a review of publicly available materials as of September 2013, this brief provides an examination of the Marketplace branding strategies, websites, and marketing materials, providing insight into how consumers will be introduced to the Marketplaces and some of the key messages and approaches the Marketplaces will utilize to encourage individuals to enroll. As of September 2013, states and the federal government are on the eve of their October 1st launch of open enrollment…