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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

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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  • 10 Ways Women Could Be Affected by Repeal of the Affordable Care Act

    News Release

    Repeal of the Affordable Care Act could have a profound impact on women, as the law fundamentally changed women’s health coverage, benefits, and access to care. In a new issue brief, the Kaiser Family Foundation outlines 10 ways women could be affected if the ACA is repealed or its provisions are otherwise eliminated or modified, including through changes proposed in the House Republican replacement bill, the American Health Care Act. The brief discusses the potential…

  • Web Briefing for Journalists – ACA Cost-Sharing Subsidies: How One Decision Could Disrupt Obamacare Marketplaces

    Event Date:
    Event

    Premiums, insurer choice, and overall stability of 2018 Affordable Care Act (ACA) marketplaces could be affected by decisions from Congress and the Trump Administration on the health law’s cost-sharing reduction provision. With a legal appeal pending on a lawsuit from the U.S. House, the federal government and Congress are in a position to choose whether to continue reimbursing insurers for the subsidies, which were established as part of the ACA to reduce out-of-pocket costs for…

  • Key Questions About Medicaid Block Grants

    News Release

    As policymakers in Washington discuss Affordable Care Act repeal and a possible block grant for Medicaid, a new issue brief from the Kaiser Family Foundation lays out key questions to consider in restructuring federal financing of the nation’s health insurance program for low-income Americans. Capping federal funding for Medicaid through a block grant or a per capita cap financing system would make federal spending more predictable and achieve federal budget savings. It also could be structured…

  • JAMA Forum: Is the Affordable Care Act Imploding?

    Perspective

    In this April 2017 post, Larry Levitt discusses the current status of the Affordable Care Act's health insurance marketplaces, and explains how the Trump administration's choices -- including whether to continue cost-sharing reduction payments to insurers -- could influence stability of the marketplaces going forward. The post is now available at The JAMA Forum.

  • The Effects of Ending the Affordable Care Act’s Cost-Sharing Reduction Payments

    Issue Brief

    This analysis estimates that total federal spending on Affordable Care Act marketplace subsidies would rise $2.3 billion, or 23 percent, in 2018 if payments for the cost-sharing reduction program were eliminated and insurers increased premiums to compensate. Established to reduce out-of-pocket costs for marketplace enrollees with lower incomes, the cost-sharing payments are being challenged in a lawsuit from the U.S. House.

  • Data Note: Medicaid Managed Care Growth and Implications of the Medicaid Expansion

    Issue Brief

    Most states today rely heavily on risk-based managed care organizations (MCOs) to serve Medicaid beneficiaries. This Data Note discusses the current role of managed care in Medicaid and examines differences in managed care growth between states that expanded Medicaid to low-income adults under the Affordable Care Act (ACA) and states that did not expand Medicaid.