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The ACA MarketplaceS

Tracking Insurer Changes in the ACA Marketplaces in 2027

As of June 22, six carriers have announced that they will exit the Marketplaces in plan year 2027, either in some or all states that they are currently offering plans; four carriers have announced they will enter new Marketplaces.

An image of text is an excerpt from Cynthia Cox's quick take which reads, "While the Trump administration attributes this drop in enrollment to their attempts to address fraud, this coverage loss happened at the same time millions of people faced steep increases in their premium payments — often in the double or even triple digits — with the expiration of enhanced tax credits."

ACA Marketplace Enrollment Is Down By 3 Million After Big Jump in Premium Payments

Enrollment dropped 13% following the expiration of enhanced premium tax credits at the beginning of this year. Enrollment fell from a high of 22.1 million people in 2025 to 19.2 million people in February 2026. While the Trump administration attributes this drop in enrollment to their attempts to address fraud, this coverage loss happened at the same time millions of people faced steep increases in their premium payments – often in the double or even triple digits – with the expiration of enhanced tax credits.

POLLING on the ACA

Tracking the Public’s Views on the ACA

While overall opinion of the Affordable Care Act has been more favorable than unfavorable since 2017, there remain deep partisan divides. See how public opinion on the ACA has changed from the inception of the law to the present. This interactive tool highlights key moments when views shifted and trends based on party identification, income, age, gender, and race/ethnicity.

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  • Navigator Funding Restored in Federal Marketplace States for 2022

    Issue Brief

    This data notereviews the data from CMS about its funding awards to Navigator programs serving consumers in the federal marketplace states during the 2022 open enrollment season, as well as funding trends over time and funding by state.

  • For 3rd Year in a Row, More Insurers are Entering the ACA Marketplaces, Creating More Options for Consumers

    News Release

    For the third straight year, more insurers are entering the Affordable Care Act’s marketplaces and expanding their service areas, creating more options for consumers seeking to buy their own insurance for 2021, a new KFF analysis finds.  The analysis finds 30 insurers joining the marketplace across 20 states, and another 61 insurers are expanding their services within states that they already served. More than a third of counties (1,207, or 38%) will have more insurers…

  • Medicaid Expansion Spending and Enrollment in Context: An Early Look at CMS Claims Data for 2014

    Issue Brief

    This issue brief analyzes spending and enrollment data made available by CMS through the MBES. It breaks out spending and enrollment for the new adult group (Group VIII) that gained coverage in states that adopted the ACA Medicaid expansion. It looks at spending and enrollment for the new adult group in calendar year 2014, putting such data in the context of overall Medicaid spending and enrollment and examines trends across expansion states.

  • Health Insurance Marketplace Calculator Updated for 2016

    News Release

    The Kaiser Family Foundation's Health Insurance Marketplace Calculator is now updated to include local data on 2016 health plans that are being sold through the Affordable Care Act marketplaces. The Spanish-language version of the calculator is also updated.

  • Will GOP Candidates’ Positions on Obamacare Matter in Crowded Field?

    News Release

    In his latest column for The Wall Street Journal's Think Tank, Drew Altman analyzes the politics of Republican Affordable Care Act replacement plans and the challenges all Republican candidates will face distinguishing themselves from others on the ACA in a crowded primary field. All previous columns by Drew Altman are available online.

  • The Affordable Care Act Doesn’t Rank Highly As an Issue for Voters in the Presidential Primaries

    News Release

    Despite Anecdotal Reports about Narrow Networks, 87% of Working-Age Adults with Insurance Are Satisfied With Their Plan's Choice of Doctors; 12% Say They Had to Change Doctors in Past Year As the ACA's Open Enrollment Nears End, Most of Those Who Remain Uninsured Are Disengaged While this month Congress passed and President Obama vetoed legislation to repeal the Affordable Care Act, voters nationally aren't focused on the law in this year's presidential election, the latest…

  • What New Data Tell Us About Doctor Choice

    News Release

    Is choice of doctors eroding? Drew Altman explores the rhetoric versus reality and why the issue resonates with Americans, in his latest column for The Wall Street Journal's Think Tank. All previous columns by Drew Altman are online.

  • Public Split On What to Do About the Health Care System, Though More Support Building on ACA Than Repealing It, Replacing with a GOP Alternative, or Creating a Single Payer Plan

    News Release

    Following Flint Water Crisis, Nearly Half Worry about Their Community's Water Supply Almost Half of Public is Concerned about a Widespread Zika Outbreak in U.S. This Year The latest Kaiser Health Tracking Poll finds the public as divided as the remaining presidential candidates over their vision for the future of the nation's health care system. When asked to choose among four broad approaches for changing the health care system currently being discussed, the largest share…

  • Medicare-for-All vs. Single Payer: The Impact of Labels

    News Release

    In his latest column for The Wall Street Journal’s Think Tank, “Medicare-for-All vs. Single Payer: The Impact of Labels”, Drew Altman uses new polling on a Medicare-for-all or single payer health system to explain how what you call a health reform plan can substantially affect the public’s response. All previous Drew Altman columns are online.