Affordable Care Act

The ACA MarketplaceS

Individual Market Enrollment Declined by 18% Since June 2025

Individual Market Enrollment Fell 18%, Suggesting Continued ACA Marketplace Losses

Enrollment in the individual health insurance market fell by 18%—over 4.6 million people—from 25.2 million in June 2025 to 20.5 million in June 2026. Falling individual market enrollment suggests further decline in ACA Marketplace enrollment this year, since Marketplace enrollees represent the vast majority of individual market coverage.

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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  • 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,…

  • 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:…

  • Pre-existing Conditions and Medical Underwriting in the Individual Insurance Market Prior to the ACA

    Issue Brief

    This brief reviews medical underwriting practices by private insurers in the individual health insurance market prior to 2014, and estimates how many American adults could face difficulty obtaining private individual market insurance because of a pre-existing condition if the Affordable Care Act (also known as Obamacare) were repealed or amended and such practices resumed.

  • Improving the Affordability of Coverage through the Basic Health Program in Minnesota and New York

    Issue Brief

    To date, Minnesota and New York are the only states to have adopted a Basic Health Program (BHP), an option in the Affordable Care Act (ACA) that permits state-administered coverage in lieu of marketplace coverage for those with incomes below 200% of the federal poverty level (FPL) who would otherwise qualify for marketplace subsidies. BHP covers adults with incomes between 138-200% of FPL and lawfully present non-citizens with incomes below 138% FPL whose immigration status…

  • 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…

  • 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.