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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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  • Nine in Ten Uninsured Unaware that the Affordable Care Act’s Second Open Enrollment Period Starts in November

    News Release

    Most of Those Without Health Coverage Report Knowing Little or Nothing About the Insurance Marketplaces or About the Financial Assistance Available to Low- and Moderate-Income Families Broader Public Opinion on the Law Still Tilts Unfavorably, Though Gap Has Narrowed Since July and Returned to Pre-Rollout Levels With the second annual open enrollment period under the Affordable Care Act set to begin Nov. 15, the latest Kaiser Family Foundation tracking poll finds major gaps in the…

  • Implications of the ACA Medicaid Expansion: A Look at the Data and Evidence

    Issue Brief

    More than four years after the implementation of the Medicaid expansion included in the Affordable Care Act, debate and controversy around the implications of the expansion continue. Despite a large body of research that shows that the Medicaid expansion results in gains in coverage, improvements in access and financial security, and economic benefits for states and providers, some argue that the Medicaid expansion has broadened the program beyond its original intent diverting spending from the…

  • Analysis: Individual Market Insurers Experienced Their Best Financial Year under the ACA in 2017, Though Subsequent Political and Policy Changes Complicate the Outlook for Future Years

    News Release

    Insurers in 2017 had their best financial year selling individual market health insurance since the Affordable Care Act began requiring guaranteed access to coverage for people with pre-existing conditions in 2014, though recent political and policy changes create new challenges for insurers trying to succeed in this market, new Kaiser Family Foundation analysis finds. This analysis finds insurers posted their strongest performance in the individual market using two different financial indicators: The average share of…

  • 2019 Premium Changes on ACA Exchanges

    Issue Brief

    This tracker monitors preliminary 2019 premiums in the Affordable Care Act’s marketplaces as insurers file rate information with state regulators. It shows preliminary premium information in a major city in each available state for the lowest-cost bronze plan and “benchmark” silver plan, which is used to determine the size of the premium tax credits available to low- and moderate-income enrollees. The tracker also shows how those premiums are changing from 2018 and what a 40-year-old…

  • Short-Term Limited Duration Plans and HIV

    Issue Brief

    Given the Trump Administration’s promotion of short-term limited-duration (STLD) health insurance policies, this brief examines what they mean for people with HIV. The analysis assesses whether people with HIV could enroll in STLD plans by applying to 38 plans across five states and getting in each case. It also assesses whether such plans could meet basic HIV care and treatment needs for someone diagnosed once enrolled. This finding takes on new importance in light of…

  • Medicaid: What to Watch in 2018 from the Administration, Congress, and the States

    Issue Brief

    Medicaid provides health insurance coverage for about one in five Americans and is the largest payer for long-term care services in the community and nursing homes. Efforts in 2017 to repeal and replace the Affordable Care Act (ACA) and cap federal financing for Medicaid were unsuccessful but help to set the stage for 2018. As 2018 begins, there is a focus on administrative actions using Medicaid Section 1115 demonstration waivers, state actions on Medicaid expansion,…

  • How Medicaid Section 1115 Waivers Are Evolving: Early Insights About What to Watch

    Issue Brief

    While efforts to pass major federal legislation to repeal and replace the Affordable Care Act (ACA) and restructure and reduce federal Medicaid financing may be on hold temporarily, the focus of the Centers for Medicare and Medicaid Services (CMS) and states is expected to turn to achieving significant Medicaid program changes through Section 1115 demonstration waivers. This issue brief presents three questions to help analyze the evolution of federal waiver policy as new waiver proposals…

  • The Great Medicaid Divide

    From Drew Altman

    In his Axios column, Drew Altman examines how the core views Republicans have about Medicaid differ from those of Democrats and Independents, and how those views drive the policy changes they are proposing for the program.

  • ACA Replacement Plans and the Individual Market

    Feature

    This slideshow compares premiums and tax credits under proposed replacement plans for the Affordable Care Act, including the Senate's Better Care Reconciliation Act and the House-passed American Health Care Act.