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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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  • Where President-elect Donald Trump Stands on Six Health Care Issues

    Issue Brief

    Where does President-elect Donald Trump stand on key health care issues? This snapshot outlines his positions and policy statements during the campaign on issues such as health insurance, the ACA, Medicaid, Medicare, the opioid epidemic, prescription drug costs, and women's reproductive health.

  • The Bigger Story, and Agenda, Behind GOP Changes to Obamacare, Medicare and Medicaid

    From Drew Altman

    This column was published as a Wall Street Journal Think Tank column on November 21, 2016. Early media coverage of the Republican health-care agenda has concentrated on plans to repeal and then replace the Affordable Care Act. The larger story is GOP preparations for a health policy trifecta: to fundamentally change the ACA, Medicaid and Medicare–all three of health care’s major programs–and in the process, fundamentally alter the direction of the federal role in health and core elements…

  • Kaiser Health Tracking Poll: November 2016

    Feature

    The November Kaiser Health Tracking Poll, conducted one week after the 2016 presidential election, finds health care played a limited role in voters’ 2016 election decisions. While President-elect Trump and Republican lawmakers have made it clear that one of their top priorities is the repeal of the Affordable Care Act, the survey finds Americans are divided on what they want to see lawmakers do to the health care law. This survey also finds that many…

  • After the Election, the Public Remains Sharply Divided on Future of the Affordable Care Act

    News Release

    Among Those Who Favor Repeal, Arguments About Loss of Coverage for Those with Pre-Existing Conditions Can Sway Some Opinions Many Obamacare Provisions Remain Broadly Popular Across Party Lines, But Not its Mandate The first Kaiser Health Tracking Poll since the 2016 election finds that Americans are largely divided on the future of the Affordable Care Act even though many of the law’s major provisions remain quite popular across party lines. The new survey finds that…

  • How the Republican Health Agenda Could Play Out

    From Drew Altman

    In this Wall Street Journal Think Tank column Drew Altman discusses how Republicans will assume ownership of health care’s policy and political problems as they assume control, and how that may affect their plans for the Affordable Care Act, Medicaid and Medicare.

  • What’s at Stake in a Potential Repeal of the ACA Medicaid Expansion?

    News Release

    President-elect Trump and Republican leaders in Congress have vowed to repeal the Affordable Care Act (ACA) and replace it with an alternative plan. There are now 32 states (including DC) that have adopted the ACA’s Medicaid expansion. While the details of a repeal-and-replace plan are not yet available to assess its impact, a new brief reveals what’s potentially at stake for Medicaid in the debate by examining the changes in health coverage and financing that…

  • 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…