Affordable Care Act

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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  • Joe Biden’s Big Lead on Health Care Issues

    From Drew Altman

    In an Axios column, Drew Altman discusses how this election year health isn’t a single issue -- but several -- and Joe Biden has the edge over President Trump on all of them, even as opposition to the ACA remains popular with Trump’s base.  

  • What Happens to Medicaid Drug Policy if the ACA is Overturned?

    Issue Brief

    The repeal of the ACA could mean loss of Medicaid coverage for up to 15 million that were enrolled in the ACA Medicaid expansion group prior to the COVID-19 pandemic; however, repeal could also mean significant changes to Medicaid prescription drug policy with implications for state and federal spending for prescription drugs for non-expansion Medicaid enrollees.

  • 2020 Health Insurance Marketplace Calculator

    Interactive

    The Health Insurance Marketplace Calculator, updated with 2020 premium data, provides estimates of health insurance premiums and subsidies for people purchasing insurance on their own in health insurance exchanges (or “Marketplaces”) created by the Affordable Care Act (ACA). With this calculator, you can enter your income, age, and family size to estimate your eligibility for subsidies and how much you could spend on health insurance.

  • Updated Subsidy Calculator and 300+ FAQs Help Consumers Understand the ACA Marketplaces as Open Enrollment Begins

    News Release

    Ahead of the annual Affordable Care Act (ACA) open enrollment period, the time during which consumers can shop for health plans or renew existing coverage, KFF has updated its Health Insurance Marketplace Calculator and its searchable collection of more than 300 Frequently Asked Questions about open enrollment, the health insurance marketplaces and the ACA. KFF’s Health Insurance Marketplace Calculator provides estimates of 2021 health insurance premiums and subsidies for people purchasing insurance on their own in health…

  • KFF Health Tracking Poll – October 2020: The Future of the ACA and Biden’s Advantage On Health Care

    Report

    The poll examines the public's views on the Supreme Court case to overturn the Affordable Care Act and its protections for people with pre-existing conditions. Less than a month from the results of the 2020 presidential election, this poll examines the top issues for voters (the economy, the coronavirus pandemic, health care, criminal justice and policing, among others) as well as which candidate, Biden or Trump, they think has the better approach to handle key…

  • Medicaid Covers People with Pre-Existing Conditions, Too

    Policy Watch

    In recent weeks, the possible overturning of the Affordable Care Act (ACA) in court and the upcoming election have focused attention on the issue of protections for people with pre-existing conditions. While the focus has been on the ACA’s private insurance protections, Medicaid also plays a significant role in covering people with pre-existing conditions.

  • Tracking Poll: A Large and Growing Majority, Including Republicans, Does Not Want the Supreme Court to Overturn the ACA’s Protections for People with Pre-Existing Conditions

    News Release

    As the Senate considers Judge Amy Coney Barrett’s nomination to the Supreme Court, the October KFF Health Tracking Poll finds a large majority (79%) of the public do not want the Court to overturn the Affordable Care Act’s protections for people with pre-existing medical conditions, up 17 percentage points since last year when 62% held this view. The Supreme Court is scheduled to hear arguments a week after Election Day in a challenge to the…

  • Enrollment Surge Did Not Change Public’s Views on the Affordable Care Act

    News Release

    Most Common Reason for Remaining Uninsured is Not Being Able to Find an Affordable Plan; Just 7 Percent Would Rather Pay a Fine than Pay for Coverage As the Supreme Court Considers Challenge, a Majority Supports the Law's Requirements for Contraceptive Coverage, Including for Employers with Religious Objections Despite the news that 8 million people have signed up for health insurance through the ACA’s new marketplace, the April Kaiser Health Tracking Poll finds no change…

  • Medicare Advantage: Take Another Look

    Perspective

    This Policy Insight explores possible explanations for the continued rise in Medicare Advantage enrollment between 2010 and 2013 in spite of a projected decrease following payment changes in the Affordable Care Act (ACA).