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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

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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 North Dakota Fare Under the Affordable Care Act?

    Fact Sheet

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

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

    Fact Sheet

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

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

    Fact Sheet

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

  • 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…

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

    Fact Sheet

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

  • An Introduction to Medicaid and CHIP Eligibility and Enrollment Performance Measures

    Issue Brief

    The Centers for Medicare & Medicaid Services (CMS) recently established 12 new Medicaid and CHIP eligibility and enrollment performance indicators for states to report beginning in October 2013. These indicators provide insight into the performance of new eligibility and enrollment policies established under the Affordable Care Act (ACA). In December 2013, CMS released initial reports for a subset of the indicators. This brief provides an overview of the new performance indicators; the initial data; and…

  • Coverage for Abortion Services and the ACA

    Issue Brief

    This issue brief, Coverage of Abortion Services and the Affordable Care Act (ACA), summarizes the major coverage provisions of the ACA that are relevant for women of reproductive age, reviews current federal and state policies on Medicaid and insurance coverage of abortion services as they relate to the ACA, and presents national and state estimates on the availability of abortion coverage for women who are newly eligible for Medicaid or private coverage through the Marketplaces…

  • Explaining Health Care Reform: How Might a Reform Plan Be Financed?

    Issue Brief

    One of the key challenges in enacting a health care reform plan is how to finance it among government, employers, and individuals. Of particular concern to policymakers is what effect a health reform plan would have on government spending and the federal budget. President Obama and Congressional leaders have said that any health reform plan should not add to the budget deficit over a 10 year period. This brief explains the likely sources of added…

  • Health Reform: Lessons From Massachusetts

    Event Date:
    Event

    As Congress debates comprehensive national health reform, the Kaiser Family Foundation has two reports and an updated fact sheet that examine state-level health reform in Massachusetts and the lessons it offers for policymakers in Washington. Consumers’ Experience in Massachusetts: Lessons For National Health Reform and In Pursuit of Affordable Health Care: On the Ground Lessons from Families in Massachusetts, examine the impact of health reform on the lives of ordinary people in the state, including…

  • Pulling It Together: Implementation Is Forever

    Perspective

    Now that historic health reform legislation is law, everyone is rightfully focused on implementation. There are two very different ways to look at implementation. One is the more legalistic worm's eye view, which sees implementation largely as the process of putting into effect what was written in the law. In the worm's eye view implementation proceeds in a linear fashion from legislation, to regulations specifying what the statute calls for in greater detail, to operations…