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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

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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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  • Medicaid Coverage of Pregnancy and Perinatal Benefits: Results from a State Survey

    Report

    This report details findings from a state survey on perinatal benefits in place as of July 1, 2015 for women enrolled in fee-for-service Medicaid through different eligibility pathways, including traditional pre-ACA Medicaid pathways, expansion, and pregnancy-related eligibility for the following services: basic prenatal care, counseling and support services, delivery and postpartum care, and breastfeeding supports.

  • State Variation in Medicaid Per Enrollee Spending for Seniors and People with Disabilities

    Issue Brief

    This issue brief explains the variation in Medicaid spending per enrollee for seniors, nonelderly adults with disabilities, and children with disabilities compared to other populations as well as the variation in per enrollee spending for these populations among states. It also provides a snapshot of state choices about optional eligibility pathways and services important to many seniors and people with disabilities.

  • Brief Examines Per Enrollee Medicaid Spending for Seniors and People with Disabilities, Which Varies Greatly By State

    News Release

    Medicaid coverage of acute and long-term care for more than 6 million low-income seniors and 10 million nonelderly people with disabilities accounts for nearly two-thirds of overall Medicaid spending, although such enrollees represent less than a quarter of people on Medicaid.  Much of Medicaid’s spending on seniors and people with disabilities also depends on state decisions about whom to cover and which services to pay for, which is a big reason why Medicaid spending per…

  • Proposed Medicaid Section 1115 Waivers in Maine and Wisconsin

    Issue Brief

    While the future of legislation to repeal and replace the Affordable Care Act (ACA) and make fundamental changes to the structure and funding of the Medicaid program is uncertain, states and the Administration may achieve major changes to Medicaid through the use of Section 1115 Medicaid waivers. Wisconsin submitted a waiver amendment request to CMS in June 2017 and Maine submitted a waiver application to CMS in August 2017. Unlike previous waivers that encompass the…

  • Analysis: 6.3 Million People with Pre-Existing Conditions Would Be at Risk for Higher Premiums under the House’s Health Bill

    News Release

    A new Kaiser Family Foundation analysis estimates that 6.3 million people -- 23 percent of 27.4 million non-elderly adults with a gap of several months in insurance coverage in 2015 – could potentially face higher premiums under the House’s American Health Care Act (AHCA), due to pre-existing health conditions. The bill, which passed the House earlier this month, allows states to waive community rating in the individual insurance market. Insurers in states with such waivers…

  • How to Keep ACA Stabilization Narrow

    From Drew Altman

    In this column for Axios, Drew Altman discusses the main challenges for members and media coverage as members take up the issue of stabilization of the Affordable Care Act.

  • The Affordable Care Act’s Impact on Medicaid Eligibility, Enrollment, and Benefits for People with Disabilities

    Issue Brief

    Medicaid is an important source of health insurance coverage for people with disabilities. This issue brief explains how Medicaid eligibility and benefits for people with disabilities are affected by the Affordable Care Act (ACA) rules as of 2014. Marketplace rules are discussed to the extent that they relate to Medicaid eligibility determinations for people with disabilities.

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

    Fact Sheet

    This report explains how the ACA expands coverage nationally, 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 are eligible for Medicaid or financial assistance in the Marketplace. For states…

  • Retiree Health Benefits At the Crossroads

    Report

    This issue brief reviews recent trends and developments in employer-sponsored retiree health coverage and examines the impact of recent legislation, such as the Medicare drug benefit and the Affordable Care Act (ACA) on retiree health coverage. The report describes leading strategies employers have been pursuing or considering to limit costs for retiree health benefits. In addition, the report considers the potential implications of proposals aimed at reducing federal spending for retiree health coverage and costs.