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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  • Medicaid Expansion Has Had Beneficial Effects on Some Sexual and Reproductive Health Outcomes 

    News Release

    A new KFF review of more than three dozen studies published between April 2021 and June 2023 finds that Medicaid expansion under the Affordable Care Act is associated with beneficial effects on a range of sexual and reproductive health outcomes. The studies, which echo findings of previous research, find that Medicaid expansion is associated with increased health insurance coverage prior to and after pregnancy, as well as increased access to, and utilization of, both prenatal…

  • Most of the Public Worries About the Future of Medicare But Sees Debate About Medicare Cuts More as Playing Politics than Actual Plans

    News Release

    With a divided Congress expected to weigh spending cuts during its debt ceiling and budget debates, the latest KFF Health Tracking Poll finds that the public has broad concerns about Medicare’s sustainability for the future but mostly views the debate about Medicare cuts as largely politics. About eight in 10 (81%) adults – including similar shares of Democrats, independents and Republicans – say they worry Medicare will not be able to provide the same level…

  • Use of ACA preventive services potentially affected by Braidwood v. Becerra

    Issue Brief

    This analysis finds that about 10 million privately insured people received at least one ACA preventive service or drug that could be affected by a now-stayed U.S. District Court ruling, which found the Affordable Care Act's (ACA) requirement to cover certain preventive services without any cost sharing to be partially unconstitutional.

  • About 1 in 20 People with Private Insurance Received Services that Could be Affected by a District Court Ruling Limiting the ACA’s Preventive Services Mandate

    News Release

    A new KFF analysis finds about 1 in 20 privately insured people (5.7%) received at least one ACA preventive service or drug that could be affected by a now-stayed U.S. District Court ruling in Braidwood Management v. Becerra, which found the Affordable Care Act’s (ACA) preventive services mandate partially unconstitutional. The district court also found that pre-exposure prophylaxis (PrEP), medication recommended for HIV prevention, violates the religious rights of those who have objections to its…

  • 10 Essential Facts About Medicare’s Financial Outlook

    Issue Brief

    Medicare, the nation’s federal health insurance program for 57 million people age 65 and over and younger people with disabilities, often plays a major role in federal health policy and budget discussions. Medicare is likely to be back on the federal policy agenda as Congress debates repealing and replacing the ACA, and also if policymakers turn their attention to reducing entitlement spending as part of efforts to reduce the growing federal budget deficit and debt.…

  • Insurance Coverage Changes for People with HIV Under the ACA

    Issue Brief

    This brief provides the first national estimates of changes in insurance coverage among people with HIV since the implementation of the ACA. We find that coverage increased significantly for people with HIV due to the ACA’s Medicaid expansion; indeed, increased Medicaid coverage in expansion states drove a nationwide increase in coverage for people with HIV.

  • Views of Governors and Insurance Commissioners on ACA Repeal and Changes to Medicaid: Responses to a Congressional Request for State Input on Health Reform

    Issue Brief

    This brief summarizes responses from governors and insurance commissioners in 35 states, including DC, to a request from members in the House of Representatives for state input on health care reforms. These responses provide insight into state leaders’ views on repeal and replacement of the ACA and the changes Congress is considering making to the financing and structure of Medicaid. It finds that respondents have mixed views on the ACA and potential repeal and replacement…

  • Health-Care Deductibles Climbing Out of Reach

    From Drew Altman

    In this column for The Wall Street Journal's Think Tank, Drew Altman explores the trend of higher deductibles in health plans and discusses a new analysis showing that many people with private insurance don’t have sufficient financial resources to pay a mid- or high-range deductible.