Affordable Care Act

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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  • Data Note: What if Per Enrollee Medicaid Spending Growth Had Been Limited to CPI-M from 2001-2011?

    Issue Brief

    Congress is currently debating the American Health Care Act (AHCA), which would repeal and replace the Affordable Care Act (ACA) and also make substantial changes to the structure and financing of Medicaid. Among other provisions, the AHCA would use a per capita cap policy to cap federal funds to states for Medicaid. This data note examines what the implications of tying per enrollee growth to CPI-M would have been for the 2001-2011 period for federal…

  • Medicaid Restructuring Under the American Health Care Act and Implications for Behavioral Health Care in the US

    Issue Brief

    This brief outlines Medicaid’s role for people with behavioral health conditions and the implications of the American Health Care Act for these enrollees. It includes information on the potential impact of ending the enhanced federal financing for newly eligible adults, removing essential health benefits from state plan amendments, and converting federal Medicaid funding into a per capita cap.

  • What Paul Ryan’s Stance on 2016 Means for Health Care

    From Drew Altman

    In this column for The Wall Street Journal's Think Tank, Drew Altman discusses the implications of Paul Ryan’s decision to rule out being drafted as a Republican presidential candidate for the 2017 health care agenda and how it could focus greater attention on proposals to change Medicare and Medicaid along with the Affordable Care Act.

  • State Variation in Medicaid Per Enrollee Spending for Seniors and People with Disabilities

    Issue Brief

    This issue brief explains the variation in Medicaid spending per enrollee for seniors, nonelderly adults with disabilities, and children with disabilities compared to other populations as well as the variation in per enrollee spending for these populations among states. It also provides a snapshot of state choices about optional eligibility pathways and services important to many seniors and people with disabilities.

  • A Tale of Two Siblings, the ACA, and the Supreme Court

    From Drew Altman

    In a column published on The Huffington Post, Kaiser Family Foundation President and CEO Drew Altman shows how the U.S. Supreme Court’s decision to make the ACA Medicaid expansion a state option has upended the health insurance system for low and moderate income people in many states and discusses how the states and federal government can address the problem.

  • Health Coverage and Care in the South: A Chartbook

    Report

    The South has faced longstanding disparities in health and health care, although significant variation exists between southern states. As a group, compared to those in other regions, Southerners are more likely to be uninsured, less likely to have access to needed health services, and more likely to experience a number of chronic health conditions. This chartbook provides key data on the demographic and economic characteristics of the southern population as well as their health status,…

  • Visualizing Health Policy: Preventive Services for Women and the ACA

    Other Post

    This month’s Visualizing Health Policy infographic takes a look at preventive health services for women, including missed opportunities for preventive counseling on risk factors (such as smoking or alcohol) and sexual health issues (such as contraception, sexually transmitted infections, and domestic violence), the effects of lack of insurance on rates of mammograms and other screening tests for women, and how costs are a barrier that cause some women to postpone preventive services or skip a…

  • 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).

  • The Health-Cost Problem Is Coming Back

    From Drew Altman

    Drew Altman, in The Wall Street Journal’s Think Tank, discusses how the conversation will soon shift back to health-care costs from health coverage, because they are rising more sharply again. And as the discussion turns back, he says that because there is no national agreement on a strategy to address increasing costs, current efforts in the public and private sector, however fragmented and uncoordinated, will need to step up their game.