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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

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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  • An Estimated 52 Million Adults Have Pre-Existing Conditions That Would Make Them Uninsurable Pre-Obamacare

    News Release

    A new Kaiser Family Foundation analysis finds that 52 million adults under 65 – or 27 percent of that population -- have pre-existing health conditions that would likely make them uninsurable if they applied for health coverage under medical underwriting practices that existed in most states before insurance regulation changes made by the Affordable Care Act. In eleven states, at least three in ten non-elderly adults would have a declinable condition, according to the analysis:…

  • What Might a Repeal of the Affordable Care Act Mean for Medicare?

    News Release

    As Republican policymakers consider how to repeal and replace the Affordable Care Act (ACA), they are likely to face a number of decisions about whether to retain any of the law’s changes to Medicare. Repealing the ACA has potential implications for Medicare spending, beneficiaries, and other stakeholders, according to a new Kaiser Family Foundation brief. A full repeal of the ACA would undo all of the law’s changes to Medicare and would increase Medicare spending,…

  • The Health Care Plan Trump Voters Really Want

    From Drew Altman

    In a New York Times op-ed, Drew Altman draws on observations from focus groups in rust belt states of people in the Affordable Care Act (ACA) marketplaces who voted for President-elect Trump and say they may not like their coverage under the ACA but could like Republican replacement plans even less.

  • Interactive Maps: Estimates of Enrollment in ACA Marketplaces and Medicaid Expansion

    Interactive

    As the 115th U.S. Congress deliberates the future of the Affordable Care Act, also known as Obamacare, an interactive map from the Kaiser Family Foundation provides estimates of the number of people in each congressional district who enrolled in a 2017 ACA marketplace health plan and the political party of each district’s representative as of October 2017. The analysis also includes maps charting the total number of people enrolled under the ACA Medicaid expansion in…

  • New Interactive Map with Local Data: Estimated 2016 ACA Marketplace Enrollment by Congressional District

    News Release

    As the 115th U.S. Congress deliberates the future of the Affordable Care Act, also known as Obamacare, a new interactive map from the Kaiser Family Foundation provides estimates of the number of people in each congressional district who enrolled in a 2016 ACA marketplace health plan and the political party of each district’s representative as of January. The analysis also includes maps charting by state the total number of people enrolled under the ACA Medicaid…

  • Major Considerations for Repealing and Replacing the ACA

    Event Date:
    Event

    The Kaiser Family Foundation and the Committee for a Responsible Federal Budget host a public forum to discuss the process and implications of repealing and replacing the Affordable Care Act, including the implications of using the budget reconciliation process to repeal the ACA, and what an ACA replacement could mean for health insurance coverage and costs.

  • Community Health Centers: Recent Growth and the Role of the ACA

    Issue Brief

    This brief draws on federal data and our 2016 survey of health centers to provide a 2015 profile of health centers, analyze recent changes in patient coverage and service capacity, and compare health centers in Medicaid expansion and non-expansion states. It also considers the implications of a repeal of the ACA for health centers and the low-income communities they serve.

  • Private Contracts Between Doctors and Medicare Patients: Key Questions and Implications of Proposed Policy Changes

    Issue Brief

    Changes in Medicare’s private contracting laws could have significant implications for beneficiaries, doctors, and the Medicare program. This brief summarizes the three options that physicians and practitioners currently have for charging Medicare patients, explains how private contracting works in Medicare under current law, and reviews current proposals on changes to private contracting in Medicare, as well as their implications for patients, physicians, and the Medicare program.

  • High-Risk Pools as Fallback for High-Cost Patients Require New Rules

    From Drew Altman

    In this Wall Street Journal Think Tank column, Drew Altman examines how Republicans would “split the risk pools” between the healthier and the sick in their Affordable Care Act replacement plans, using state high risk pools as a fallback for higher cost patients, and examines the steps that would be necessary to make them effective based on prior experience in the states.