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

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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  • Abortion Coverage in Marketplace Plans, 2015

    Issue Brief

    This brief analyzes state policies and insurer coverage decisions affecting the availability of abortion coverage in 2015 insurance plans offered through the Marketplaces. It finds that abortion coverage is unavailable in a total of 31 states, 24 of which have enacted laws that ban or restrict abortion coverage in plans sold through their Marketplaces and 7 of which have no abortion coverage restrictions but also have no Marketplace plans offering it.

  • Safety-Net Emergency Departments: A Look at Current Experiences and Challenges

    Issue Brief

    Safety-net hospital emergency departments (EDs) are an important part of our health care system, especially, but not only, for the uninsured and others with low income. With multiple major changes unfolding in our system today, including the development of new models of health care delivery, payment reforms, expanded insurance coverage, and increasing demand for primary care access, safety-net EDs are a sort of crucible in which these shifts and transitions can be seen playing out.…

  • Proposed Medicaid Expansion in Tennessee

    Fact Sheet

    This fact sheet describes Tennessee’s 1115 waiver demonstration project, Insure Tennessee, which expands the State’s Medicaid program under the Affordable Care Act.

  • An Overview of New CMS Data on the Number of Adults Enrolled in the ACA Medicaid Expansion

    Issue Brief

    New preliminary data from the Medicaid Budget and Expenditure System (MBES) released by CMS details for the first time the number of adults enrolled in Medicaid under the new Affordable Care Act (ACA) Medicaid expansion category. This issue brief provides an overview of the new data as well as how it differs from the Performance Indicator data.

  • Round 2 on the Legal Challenges to Contraceptive Coverage: Are Nonprofits “Substantially Burdened” by the “Accommodation”?

    Issue Brief

    The Affordable Care Act (ACA) requires most private health insurance plans to provide coverage for a broad range of preventive services including Food and Drug Administration (FDA) approved prescription contraceptives and services for women. Since the implementation of the ACA contraceptive coverage requirement in 2012, over 200 corporations have filed lawsuits claiming that including coverage for contraceptives or opting for an “accommodation” from the federal government violates their religious beliefs. This brief explains the legal…

  • Survey of Non-Group Health Insurance Enrollees, Wave 2

    Poll Finding

    The survey is the second in a series exploring the experiences and perceptions of people who purchase their own health insurance, the group perhaps most affected by the Affordable Care Act's reforms to the individual insurance market and tax subsidies to make such coverage more affordable. It includes people in ACA-compliant plans sold both inside and outside the federal and state marketplaces, as well as those still in non-compliant plans, which took effect prior to…

  • Most People Enrolled in Marketplace Coverage are Satisfied with Plan’s Premiums, Cost-Sharing and Provider Networks, New Survey Finds

    News Release

      Affordability Remains Significant Concern for Many in Non-Group Plans Following the Affordable Care Act's second open enrollment period, most people enrolled in marketplace plans report being satisfied with a wide range of their plan's coverage and features, finds a new Kaiser Family Foundation survey of people who buy their own health insurance. A large majority (74%) of those in marketplace plans rate their coverage as excellent or good, the survey finds. Most (59%) also…

  • 10 FAQs: Medicare’s Role in End-of-Life Care

    Fact Sheet

    About eight of 10 of the 2.6 million people who died in the US in 2014 were people on Medicare, making Medicare the largest insurer of health care provided during the last year of life. These Frequently Asked Questions explain Medicare’s role in or coverage of end-of-life care, advance care planning, advance directives, and hospice care. They also provide information on Medicare spending on end-of-life care, changes to the physician fee schedule, and how related issues arose…

  • King v. Burwell and Media Coverage

    From Drew Altman

    In this column for The Wall Street Journal’s Think Tank, Drew Altman lays out the news media’s challenge covering the upcoming Supreme Court King v. Burwell decision about the ACA.