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

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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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  • At Five Year Anniversary of the ACA, Gap Between Favorable and Unfavorable Views Among The Public Narrows to Smallest Spread in More Than Two Years

    News Release

    Most Expect Negative Consequences if Supreme Court Prohibits Subsidies in States Without Their Own Insurance Exchanges; Two Thirds of the Public and Those in Affected States Want Congress or Their State to Close Any Gaps As April 15 Tax Deadline Nears, Nearly Half Unaware Insurance Reporting Requirement Starts This Year Five years after President Obama signed the Affordable Care Act, this month's Kaiser Health Tracking Poll finds the closest split between favorable and unfavorable views…

  • New Analysis: Half of U.S. Households Eligible for a Tax Subsidy Under the Health Law Would Owe a Repayment, While 45 Percent Would Receive a Refund

    News Release

    Estimated Average Repayment is $794. Estimated Average Refund is $773. Half of U.S. households eligible for a 2014 tax subsidy under the Affordable Care Act would owe a repayment to the government, while 45 percent would receive a refund, according to estimates from a new analysis by the Kaiser Family Foundation. The analysis – which is a simulation based on historical patterns of income volatility among all households eligible for ACA premium subsidies -- estimates that the…

  • A Profile of Community Health Center Patients: Implications for Policy

    Issue Brief

    Community health centers are a key source of primary care in underserved areas. Their role will grow as coverage expands under the ACA. To sharpen understanding of the health center patient population, this brief compares them to the low-income population overall, using the Health Center Patient Survey and National Health Interview Survey. The pre-ACA profile of health center patients that emerges sets the stage for measuring change and highlights important implications of states’ Medicaid expansion…

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

    Fact Sheet

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

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

    Fact Sheet

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

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

    Fact Sheet

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

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

    Fact Sheet

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

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

    Fact Sheet

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

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

    Fact Sheet

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