Affordable Care Act

The ACA MarketplaceS

How Has Marketplace Enrollment Changed Across States in 2026?

Following several years of rapid enrollment growth in the ACA Marketplaces that corresponded with temporary enhanced premium tax credits, enrollment fell for the first time in seven years in 2026, when those tax credits expired. Every state except for New Mexico saw a drop in Marketplace enrollment from 2025 to 2026. State-based Marketplaces that run their own enrollment platforms, including those that partially offset the enhanced tax credits, generally saw lower drops in enrollment.

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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  • Coordinating Coverage and Care in Medicaid and Health Insurance Exchanges

    Issue Brief

    The Kaiser Commission on Medicaid and the Uninsured convened a roundtable discussion on August 31, 2010 with a group of national and state experts to discuss key issues related to coordinating coverage and care in Medicaid and the new Health Insurance Exchanges under health reform. The Patient Protection and Affordable Care Act requires states to create a coordinated, simple and technologically-supported process through which individuals may obtain Medicaid, Children’s Health Insurance Program and subsidized Exchange…

  • Medicaid Enrollment Under the Affordable Care Act: Understanding the Numbers

    Issue Brief

    This issue brief walks through data recently released from Health and Human Services (HHS) and what it can and cannot tell us about the number of people that have applied for Medicaid since open enrollment for health insurance marketplaces began, how many have enrolled, and what the role of the ACA is in recent Medicaid coverage gains.

  • All Eyes on the Supreme Court: More than Birth Control at Stake

    Issue Brief

    On March 25th, the Supreme Court will hear two cases brought by for-profit corporations challenging the ACA’s contraceptive coverage rule on religious grounds. These two corporations are Hobby Lobby, a national chain of craft stores owned by a Christian family and Conestoga Wood Specialties, a cabinet manufacturer, owned by a Mennonite family. Beyond the impact on the ACA and contraceptive coverage, the Court’s decision may have implications for religious rights of employers and employees, as…

  • The Impact of the Coverage Gap for Adults in States not Expanding Medicaid by Race and Ethnicity

    Issue Brief

    The Affordable Care Act (ACA) expansion of Medicaid to adults with incomes at or below 138% of the federal poverty level (FPL) effectively became a state option following the Supreme Court decision, creating a “coverage gap” for many poor uninsured adults in states that do not expand Medicaid. This brief examines the coverage gap by race and ethnicity.

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

    Fact Sheet

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

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

    Fact Sheet

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

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

    Fact Sheet

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

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

    Fact Sheet

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