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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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  • Health Care and the Economy in Two Swing States: A Look at Ohio and Florida

    Poll Finding

    Two new surveys by NPR, the Kaiser Family Foundation and the Harvard School of Public Health examine the pocketbook problems facing people in Ohio and Florida -- two presidential swing states -- including their struggles with gas prices, getting and keeing a well-paying job and affording health care. The surveys, , also take an in-depth look at the impact of medical bills on family finances and health care, and provide insights into the way health…

  • Spending To Survive: Cancer Patients Confront Holes in the Health Insurance System

    Event Date:
    Event

    This report highlights the severe challenges cancer patient may face in paying for life-saving care even when they have private health insurance. Jointly authored by the Kaiser Family Foundation and the American Cancer Society, the report profiles 20 patients and illustrates the potential difficulties people diagnosed with cancer or other serious illnesses have in maintaining affordable health insurance and paying for their health care. The patients in the report and accompanying video were selected to…

  • National Health Insurance — A Brief History Of Reform Efforts In The U.S.

    Issue Brief

    This policy brief provides an overview of health reform efforts in the United States over much of the last century, from New Deal-era calls for government-subsidized health coverage to the creation of Medicare and Medicaid in the 1960s and the failed attempt at universal coverage in the early 1990s. Issue Brief (.pdf)

  • Medicaid as a Platform for Broader Health Reform: Supporting High-Need and Low-Income Populations

    Issue Brief

    Medicaid is the health insurance safety net for nearly 60 million of the nation's poorest and sickest individuals. It provides access to a comprehensive scope of benefits with limited cost-sharing that is geared to meet the health needs and limited resources of the low-income, high-need populations it serves, populations for whom private coverage is often not available, not affordable or inadequate. This paper, based on years of research and analysis from the Kaiser Commission on…

  • Health Care and the Middle Class: More Costs and Less Coverage

    Report

    This analysis paper examines the availability, affordability and stability of the health insurance coverage of the American middle class, defined as those with incomes of $44,000 to $88,000 for a family of four. It also addresses the growing burden of health care costs for the middle class, the adequacy of today's health insurance plans to protect them from large medical bills, and the difference both make as individuals and families make health care decisions for…

  • Explaining Health Reform: Medicare and the New Independent Payment Advisory Board

    Issue Brief

    This brief describes how the new board created under the 2010 health reform law is expected to limit the growth in Medicare spending over time. Starting in 2014, if projected per capita Medicare spending exceeds targets set in the law, the board must recommend ways to reduce Medicare spending, while maintaining quality and access to care for beneficiaries. The board’s recommendations automatically take effect the next year unless Congress adopts an alternative plan to achieve…

  • Pulling it Together: The “Third School” for Controlling Health Care Costs?

    Perspective

    For as long as I have been in the field, there have been two dominant schools of thought about how to control health care costs. One school, The Regulators, believed that the best way to slow increasing costs was to control the total resources going into the health care system: putting limits on the supply of medical professionals, technology and facilities; setting payment rates; or putting enough purchasing power in the hands of government to…

  • Summary of Coverage Provisions in the Patient Protection and Affordable Care Act

    Issue Brief

    This short summary describes the health coverage provisions contained in the final version of the Affordable Care Act signed into law in March 2010, including the individual mandate requirements, expansion of public programs, health insurance exchanges, changes to private insurance and employer requirements.

  • Explaining Health Reform: Key Changes in the Medicare Advantage Program

    Issue Brief

    This brief examines the changes in the 2010 health reform law affecting the Medicare Advantage program, which gives beneficiaries the option of enrolling in private insurance plans for their Medicare benefits, instead of the traditional fee-for-service program. The reform law will gradually reduce Medicare payments to these plans to bring the average payment closer to the costs of traditional fee-for-service Medicare, while rewarding plans with high-quality ratings. The brief also describes new benefit requirements for…

  • West vs. South: Regional Differences in Views of the Health Reform Law

    Poll Finding

    This Data Note examines regional variations in public opinion of the health reform law based on the November 2010 Kaiser Health Tracking Poll. The analysis takes a special look at the Western and Southern regions of the country, where many states are likely to see the biggest increases in coverage under the law, and which stand to be disproportionately eligible for federal Medicaid funds. Despite these similarities in how the two regions might be affected,…