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Affordable Care Act

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

    Fact Sheet

    This state report explains how the ACA expands coverage in New York, 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 New York are eligible for Medicaid or financial…

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

    Fact Sheet

    This state report explains how the ACA expands coverage in South Carolina, 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 South Carolina are eligible for Medicaid or financial…

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

    Fact Sheet

    This state report explains how the ACA expands coverage in South Dakota, 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 South Dakota are eligible for Medicaid or financial…

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

    Fact Sheet

    This state report explains how the ACA expands coverage in Virginia, 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 Virginia are eligible for Medicaid or financial assistance in…

  • Is ACA Coverage Affordable for Low-Income People? Perspectives from Individuals in Six Cities

    Issue Brief

    This brief presents findings from focus groups with low-income Medicaid and Marketplace enrollees in six cities: Baltimore, MD; Columbus, OH; Oakland, CA; Richmond, VA; St. Louis, MO; and Tampa, FL. It explores their experiences signing up for coverage; their perceptions of whether the costs they pay for their coverage are affordable; their experiences accessing care; and the impact of out-of-pocket costs on their ability to get needed care. It provides insights into the ongoing financial…

  • Flint Fallout: Water Supply Safety Now Near Top of Public’s National Health Concerns, Trailing Cancer

    News Release

    In the wake of the lead crisis affecting drinking water in Flint, Mich., the public now ranks contaminated drinking water among the most serious national health issues, trailing cancer, according to the April Kaiser Health Tracking Poll. When asked about a series of health issues facing the country, more than a third (35%) identify contaminated drinking water as “extremely serious,” behind cancer (43%) and similar to heroin abuse (35%)  and ahead of major diseases such…

  • People with HIV Who Gained Health Coverage Under ACA Are More Comfortable Navigating Insurance Two Years Later, But Problems Persist, Others Remain Uninsured

    News Release

    A new Kaiser Family Foundation report based on focus groups conducted in five states finds people living with HIV are more comfortable with navigating health insurance two years into the Affordable Care Act’s (ACA) major coverage expansions. Those in the marketplaces and Medicaid recognize their new benefits but often continue to worry about maintaining coverage and remain concerned about its affordability, and many in states without Medicaid expansion remain uninsured. The brief takes a second…

  • 8 Questions & Answers about Puerto Rico

    Fact Sheet

    These slides provide a quick snapshot of Puerto Rico’s population, as well as current and upcoming issues that are impacting the island’s health care system.

  • New Survey Finds 72% of Previously Uninsured Californians Now Have Coverage, Including 78% of Those Eligible for New Affordable Care Act Options

    News Release

    For Remaining Uninsured Residents, Cost and Immigration Status Are Main Obstacles Three years after the Affordable Care Act’s coverage expansions were fully implemented in California, nearly three quarters (72%) of the state’s previously uninsured residents now have health coverage, finds the fourth Kaiser Family Foundation Longitudinal Panel Survey, which is tracking the experiences of a randomly selected group of Californian adults who were uninsured in 2013. This is similar to the share who reported having insurance…