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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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  • Implementing New Private Health Insurance Market Rules

    Issue Brief

    With the Jan. 1, 2014 effective date for implementing major changes in the private insurance market under the Affordable Care Act (ACA) approaching, this brief looks at three proposed federal regulations released in late November 2012 that detail how the ACA’s rules will operate in the following areas: private insurance market reforms, essential health benefits and actuarial value, and wellness programs offered or required by employers under group health plans. These regulations deal with aspects…

  • Faces of the Medicaid Expansion: How Obtaining Medicaid Coverage Impacts Low-Income Adults

    Report

    The Affordable Care Act (ACA) seeks to fill the longstanding gap in Medicaid coverage for low-income adults by expanding eligibility to a minimum floor of 138% of the federal poverty level (FPL), or $24,344 for a family of 3 in 2012. However, the Supreme Court ruling on the ACA effectively made implementation of the Medicaid expansion a state choice. If a state does not expand Medicaid, poor uninsured adults in that state will not gain…

  • Health Reform Quiz

    Feature

    Take our short, 10-question quiz to test your knowledge of the law, and then share your results with friends on Twitter or Facebook.

  • Visualizing Health Policy: Health Coverage Under the Affordable Care Act (ACA)

    Other Post

    The December 2012 Visualizing Health Policy infographic is a flowchart illustrating the mechanisms by which people will get health coverage beginning in 2014. See the full-size infographic at The Journal of the American Medical Association. Visualizing Health Policy is a monthly infographic series produced in partnership with the Journal of the American Medical Association (JAMA). Each month’s infographic is freely available on JAMA’s website and is published in the print edition of the journal.

  • Visualizing Health Policy: Health Coverage Under the Affordable Care Act (ACA)

    Report

    Related Resources Study Highlights Role of Geography and Plan Shopping Under Medicare Premium Support System Medicare Part D: A First Look at Part D Plan Offerings in 2013 The Medicare Prescription Drug Benefit - An Updated Fact Sheet Online Consumer Guide to Medicare   The latest Visualizing Health Policy infographic is a flowchart illustrating the mechanisms by which people will get health coverage beginning in 2014. Medicare's Role and Future Challenges << Previous Visualizing Health…

  • How Much Will Medicaid Physician Fees for Primary Care Rise in 2013? Evidence from a 2012 Survey of Medicaid Physician Fees

    Issue Brief

    This brief presents 50-state data from the 2012 KCMU/Urban Institute Medicaid Physician Fee Survey. It estimates that average Medicaid fees to qualified physicians for Affordable Care Act primary care services will rise by 73 percent when the primary care fee increase takes effect on January 1, 2013, although there will be wide state variation. The paper presents data showing how states compare in their 2012 Medicaid fee levels, how Medicaid fees compared to Medicare fees,…

  • Increasing Medicaid Payments for Certain Primary Care Physicians in 2013 and 2014: A Primer on the Health Reform Provision and Final Rule

    Issue Brief

    To help ensure that access in Medicaid expands to meet anticipated higher demand for care, the health reform law requires states to pay certain physicians Medicaid fees that are at least equal to Medicare’s for a list of 146 primary care services in 2013 and 2014. The idea is to attract new physicians to Medicaid and provide greater support for physicians who already participate. As a result, Medicaid fees paid to certain physicians for primary…

  • Health Insurance Market Reforms: Rate Review

    Fact Sheet

    Rate review is the process by which insurance regulators review health plans’ new or renewed rates for insurance policies in order to ensure that the rates charged are based on accurate, verifiable data and realistic projections of health costs. Historically, state insurance departments have conducted rate review, but under the Affordable Care Act (ACA), federal regulators may review rate increases in some cases. This fact sheet explains how rate review works and how the ACA…

  • Medicaid Eligibility, Enrollment Simplification, and Coordination under the Affordable Care Act: A Summary of CMS’s March 23, 2012 Final Rule

    Issue Brief

    This brief provides a summary of the Centers for Medicare and Medicaid Services' (CMS) March 23, 2012 final rule to implement the ACA provisions relating to Medicaid eligibility, enrollment simplification and coordination. The rule, which is effective Jan. 1, 2014, lays out procedures for states to implement the Medicaid expansion and the streamlined and integrated eligibility and enrollment system created under the ACA. Achieving this goal will require substantial process and system changes among state…

  • Quick Take: An Update on the ACA & HIV: Medicaid Health Homes

    Fact Sheet

    We recently wrote about the different ways in which the Affordable Care Act (ACA) changes pathways to health insurance coverage for people with HIV, and chronicled these specifics, as well as several outstanding questions, in a policy brief.  As we noted, among the many provisions of the ACA designed to improve care is a new option available to state Medicaid programs to provide “health homes” for Medicaid enrollees with chronic conditions, with a temporary enhanced…