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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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  • New Analysis Finds US Individual Insurance Market Grew 46 Percent in First Full Year of Affordable Care Act

    News Release

    A new analysis from the Kaiser Family Foundation finds that the nation's individual insurance market grew 46 percent to 15.5 million people in the first year plans could be purchased through the Affordable Care Act's marketplaces, which offer premium assistance to low- and moderate-income people. Four states -- California, Florida, Texas and Georgia -- accounted for almost half of the enrollment growth. In six states, the number of people covered in the individual market increased…

  • Implementing the ACA: Medicaid Spending & Enrollment Growth for FY 2014 and FY 2015

    Issue Brief

    This report provides an overview of Medicaid financing and Medicaid spending and enrollment growth with a focus on state fiscal years 2014 and 2015 (FY 2014 and FY 2015.) Findings are based on interviews and data provided by state Medicaid directors as part of the 14th annual survey of Medicaid directors in all 50 states and the District of Columbia conducted by the Kaiser Commission on Medicaid and the Uninsured (KCMU) survey with Health Management…

  • Infographic: How Does Where You Work Affect Your Contraceptive Coverage?

    News Release

    The Affordable Care Act’s requirement that most private health insurance plans provide contraceptive coverage has been the focus of ongoing litigation in the federal courts. In response to recent Supreme Court actions in the Hobby Lobby and College of Wheaton cases, the U.S. Department of Health and Human Services issued an interim final rule and a proposed rule on August 22, 2014 addressing how some employers with religious objections to birth control can comply with…

  • Visualizing Health Policy: Understanding the Effect of Medicaid Expansion in the South

    News Release

    This Visualizing Health Policy infographic examines the effect of decisions by states in the South to implement or forgo the Affordable Care Act Medicaid expansion. It shows that Southerners are more likely than people living in other parts of the United States to be uninsured; that most Southern states have poverty rates above the national average; that without the Medicaid expansion (which most Southern states are not implementing), Medicaid eligibility levels for adults in the…

  • Health Insurance Quiz

    Feature

    What is a health insurance premium? Can you describe what an annual health insurance deductible is? Take this 10-question quiz and learn how health insurance literate you are compared to a survey of Americans who were asked the same questions. The language of health insurance can be complex and confusing, particularly for many long-time uninsured people enrolling in the new insurance marketplaces set up under the Affordable Care Act.

  • Kaiser Health Tracking Poll: October 2014

    Feature

    In the final Kaiser Health Tracking Poll before the 2014 midterm elections in November, the Affordable Care Act (ACA) continues to be just one of several issues on voters’ minds. Less than 1 in 10 registered voters identify the ACA as the most important issue to their vote, ranking behind the economy, dissatisfaction with government, education and the situation in Iraq and Syria. With the ACA’s second open enrollment period approaching, the poll also finds…

  • Open Enrollment: Insights from Medicare for Health Insurance Marketplaces

    Perspective

    This Policy Insight draws on the experiences of Medicare beneficiaries during Medicare’s annual enrollment period to consider whether consumers with health insurance coverage through the Affordable Care Act’s new marketplaces will shop for a better deal during their open enrollment season.

  • Tax Subsidies for Private Health Insurance

    Issue Brief

    This brief describes the different forms of tax assistance for private health insurance, including subsidies offered through the Affordable Care Act's marketplaces and benefits for people who are self-employed or who have employer-based coverage. The brief also provides examples of how the subsidies work and how the amounts may differ by income and type of coverage.