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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

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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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  • 2024 Health Insurance Marketplace Calculator

    Interactive

    The Health Insurance Marketplace Calculator, updated with 2024 premium data, provides estimates of health insurance premiums and subsidies for people purchasing insurance on their own in health insurance exchanges (or “Marketplaces”) created by the Affordable Care Act (ACA).

  • How Pending Health-Related Lawsuits Could be Impacted by the Incoming Trump Administration

    Issue Brief

    This brief provides an overview of current lawsuits in health policy including preventive services, abortion care, gender affirming care, Medicare drug price negotiations, nursing home staffing rules, private coverage consumer protections, and protections and health coverage for Deferred Action for Childhood Arrivals (DACA) recipients; how they may be affected by the incoming Trump administration; and the implications of their potential outcomes.

  • SCOTUS Case Could Weaken the Impact of Regulation on Key Patient and Consumer Protections

    Issue Brief

    This brief discusses the longstanding legal doctrine, Chevron deference, being challenged in two cases before the U.S. Supreme Court and includes examples of what could be at stake for health care consumers should federal courts no longer use this doctrine to address litigation related to federal health regulations. The focus here is on patient and consumer protection regulation, but overturning the Chevron deference would have implications in all areas of health care.

  • The Implications of the Public’s Pre-existing Condition Amnesia

    Perspective

    KFF’s Larry Levitt discusses waning awareness of the Affordable Care Act’s provisions protecting people with pre-existing conditions and examines the Republican Study Committee's budget proposal, which proposes to repeal the provisions.

  • How Narrow or Broad Are ACA Marketplace Physician Networks?

    Report

    This report examines the share of doctors participating in the provider networks of Qualified Health Plans (QHPs) offered in the individual market in the federal and state Marketplaces in 2021, and how network breadth affected costs for enrollees.

  • Supreme Court Decision Limiting the Authority of Federal Agencies Could Have Far-Reaching Impacts for Health Policy

    Issue Brief

    On June 28, 2024, the U.S. Supreme Court overturned a longstanding legal precedent that required federal courts to defer to reasonable agency interpretation when statutes are ambiguous. The decision will shift many policy decisions from federal agencies to federal judges, with implications for health policy that will reverberate for years to come. This issue brief examines the decision and assesses what’s ahead.