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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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  • Updated Infographic Explains New Federal Regulations on Contraceptive Coverage

    News Release

    A newly-updated infographic from the Kaiser Family Foundation explains the final regulations on employer-based coverage of birth control released today by the U.S. Department of Health & Human Services. How Does Where You Work Affect Your Contraceptive Coverage? provides a clear explanation of coverage requirements under the new regulations for employers with religious objections to contraceptive coverage, including houses of worship, religiously-affiliated nonprofits and closely-held for-profit corporations. A related summary, also updated to reflect the new regulations,…

  • Takeaways From Alaska’s Medicaid Expansion

    News Release

    In his latest column for The Wall Street Journal’s Think Tank, Drew Altman discusses the implications of the governor of Alaska’s decision to move ahead unilaterally with Medicaid expansion. All previous columns by Drew Altman are available.

  • What New Data Tell Us About Doctor Choice

    From Drew Altman

    Drew Altman explores the rhetoric versus reality on whether choice of doctors is eroding and why the issue resonates with Americans, in this column for The Wall Street Journal's Think Tank.

  • Key Data on Health and Health Coverage in South Carolina

    Fact Sheet

    This fact sheet draws on data from “Health and Health Coverage in the South: A Data Update” to highlight findings for South Carolina. The findings show the current status of health and health coverage in the state and the potential coverage gains that may be achieved through the Affordable Care Act.

  • Health Reform and Medicare: Overview of Key Provisions Tutorial

    Interactive

    This tutorial was produced for kaiserEDU.org, a Kaiser Family Foundation website that ceased production in September 2013. The kaiserEDU.org tutorials are no longer being updated but have been made available on kff.org due to demand by professors who are using the tutorials in class assignments. You may search for other tutorials to view on kff.org. To download this or other tutorials, visit the tutorials archive page.  Slides are available for download using the "Download Slides" link within the…

  • Health Reform: How Will Medicaid Change? Tutorial

    Interactive

    This tutorial was produced for kaiserEDU.org, a Kaiser Family Foundation website that ceased production in September 2013. The kaiserEDU.org tutorials are no longer being updated but have been made available on kff.org due to demand by professors who are using the tutorials in class assignments. You may search for other tutorials to view on kff.org. To download this or other tutorials, visit the tutorials archive page.  Slides are available for download using the "Download Slides" link within the…

  • The Affordable Care Act’s Impact on Medicaid Eligibility, Enrollment, and Benefits for People with Disabilities

    Issue Brief

    Medicaid is an important source of health insurance coverage for people with disabilities. This issue brief explains how Medicaid eligibility and benefits for people with disabilities are affected by the Affordable Care Act (ACA) rules as of 2014. Marketplace rules are discussed to the extent that they relate to Medicaid eligibility determinations for people with disabilities.

  • How Will the Uninsured Fare Under the Affordable Care Act?

    Fact Sheet

    This report explains how the ACA expands coverage nationally, including a breakdown of how many uninsured people are eligible for Medicaid, how many are eligible for financial assistance to help them buy private insurance in the new Marketplace and how many will not receive any financial assistance at all. The report also details, in specific dollar figures, the income levels at which people are eligible for Medicaid or financial assistance in the Marketplace. For states…

  • Measuring Changes in Insurance Coverage Under the Affordable Care Act

    Issue Brief

    This data note discusses the details and timing of some of the private and federal surveys that will be used to look at how coverage has changed due to the Affordable Care Act. Different surveys offer different information and insight into coverage under the ACA, and we discuss the contributions and challenges in each type of effort.