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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.

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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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  • Before New Ban, the Prevalence of Surprise Bills

    Feature

    Patients with certain conditions appear to be at higher risk for receiving surprise bills. They should be aware of new federal protections against surprise bills and know how to seek out help if they have improperly received one.

  • Marketplace Sign-ups Increased by 21% in 2022

    Feature

    Forty-seven states saw Marketplace enrollment increase, ranging from 1% in Rhode Island to 42% in Texas. In 20 states, enrollment increased by more than 20%.

  • Network Adequacy Standards and Enforcement

    Issue Brief

    Health plan networks affect patient access to care. This brief reviews options for setting and enforcing network adequacy standards and tools for making differences in plan networks more transparent.

  • Implications of Reduced Federal Medicaid Funds: How Could States Fill the Funding Gap?

    Issue Brief

    In this analysis, we present three scenarios of reductions in federal Medicaid spending and examine fiscal implications if states fill these financing gaps to maintain their programs and if all reductions are assumed to be in full effect in FFY 2015 (the most recent year for which Medicaid spending data is available). To fill these gaps in financing and maintain current Medicaid programs, we assume states will increase state spending for Medicaid by increasing state…

  • Health Insurance Premiums Under the ACA vs. AHCA: County-Level Data

    News Release

    The Kaiser Family Foundation’s interactive map now allows users to compare what consumers in each county would pay in health insurance premiums after tax credits in 2020 under the Affordable Care Act vs. the House GOP replacement plan, the American Health Care Act. The maps include estimates by county for current ACA marketplace enrollees at age 27, 40, or 60 with an annual income of $20,000, $30,000, $40,000, $50,000, $75,000, or $100,000. In addition to…

  • 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.

  • 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.