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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.

In Preliminary Rate Filings, ACA Marketplace Insurers Largely Propose Double-Digit Premium Increase For 2027, Following a Steep Climb This Year 

ACA Marketplace insurers are proposing a median premium increase of 14% for 2027— indicating a likely second consecutive year of double-digit increases, according to a new analysis of preliminary rate filings in 16 states and DC. If these increases hold, typical premiums for insurers participating in the ACA Marketplaces would jump by more than one-third between 2025 and 2027.

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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  • Recent Studies Show That Medicaid Expansion Has Improved the Financial Performance of Hospitals and Other Providers, In Line With Prior Research

    News Release

    A KFF synthesis of recent studies finds that Medicaid expansion has been beneficial to the finances of hospitals and providers, driving decreases in the share of uninsured patients, increases in Medicaid-covered patients and declines in uncompensated care. By financing coverage for low-income people who are likely to otherwise be uninsured, Medicaid expansion provides potential economic benefits to the health care providers who provide care to that population. Studies suggest that hospitals experienced higher reimbursements and…

  • Many Women Use Preventive Services, but Gaps in Awareness of Insurance Coverage Requirements Persist: Findings from the 2022 KFF Women’s Health Survey

    Issue Brief

    This brief presents findings from the 2022 KFF Women’s Health Survey on women’s receipt of cancer screenings and other preventive services and differences between subgroups of women. We also present data on women’s and men’s awareness of federal requirements for private insurance coverage of preventive services.

  • Signing Up for Marketplace Coverage Remains a Challenge for Many Consumers

    Policy Watch

    As open enrollment begins for Marketplace plans, this Policy Watch provides information about consumer experiences with Marketplace sign up from the 2023 KFF Consumer Survey. Data from the survey show that Marketplace sign up has been a challenge to many consumers---often more complicated than enrollment in other kinds of health insurance. The Policy Watch also spotlights efforts to address common enrollment problems such as option overload and transitioning to Marketplace coverage from other forms of…

  • As Open Enrollment Begins, KFF’s Updated Subsidy Calculator and 300+ FAQs Demystify ACA Marketplaces

    News Release

    A recent KFF survey found one-in-three people with Marketplace coverage say it is somewhat or very difficult to find a plan that meets their needs. With ACA enrollment beginning November 1, KFF has updated its most-used Marketplace tools and published an explainer on key changes and issues to watch in this year’s open enrollment season. Tools for Open Enrollment>> KFF’s Health Insurance Marketplace Calculator provides estimates of 2024 health insurance premiums and subsidies for people…

  • Medicare Advantage Insurers Report Much Higher Gross Margins Per Enrollee Than Insurers in Other Markets

    News Release

    A new analysis of health insurers’ 2021 financial data shows that insurers continue to report much higher gross margins per enrollee in the Medicare Advantage market than in other health insurance markets. The analysis examines insurers’ financial data in the Medicare Advantage, Medicaid managed care, individual (non-group), and fully insured group (employer) markets. In 2021, Medicare Advantage insurers reported gross margins averaging $1,730 per enrollee, at least double the margins reported by insurers in the…

  • Health Care Issues in the Early Stages of the 2024 Election

    Perspective

    In this JAMA Health Forum column, Larry Levitt examines differences in the Republican presidential candidates’ records and positions on health issues, including Medicaid and abortion, that could play a role in the primaries and would set up a sharp contrast in the general election against President Biden.

  • Medicaid Expansion Has Had Beneficial Effects on Some Sexual and Reproductive Health Outcomes 

    News Release

    A new KFF review of more than three dozen studies published between April 2021 and June 2023 finds that Medicaid expansion under the Affordable Care Act is associated with beneficial effects on a range of sexual and reproductive health outcomes. The studies, which echo findings of previous research, find that Medicaid expansion is associated with increased health insurance coverage prior to and after pregnancy, as well as increased access to, and utilization of, both prenatal…

  • Standardized Plans in the Health Care Marketplace: Changing Requirements

    Issue Brief

    This brief examines the evolving requirements for insurers on HealthCare.gov to offer standardized plans that follow set cost sharing rules for covered benefits in addition to other plans they might offer. It also reviews how some state-run marketplaces have used standardized plans to limit cost sharing for insulin, mental health care, and other services.