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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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  • Health Insurance Market Reforms: Portability

    Fact Sheet

    Most Americans have access to health insurance through an employer-sponsored health plan, a fact that has made changing or losing a job a complex issue for the purposes of maintaining health insurance. Moving to a new job can be hard if the employer does not offer health insurance, or if the new employer’s health plan is not as generous as the previous employer’s plan. And with limited protections for people with pre-existing conditions, many people…

  • 2023 Health Insurance Marketplace Calculator

    Interactive

    The Health Insurance Marketplace Calculator, updated with 2023 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).

  • Health Coverage and Care for Youth in the Juvenile Justice System: The Role of Medicaid and CHIP

    Issue Brief

    This brief provides an overview of the health and mental health needs of girls and boys in the juvenile justice system and the role of Medicaid and CHIP in addressing those needs. It focuses on the circumstances of youth who are placed in juvenile justice residential facilities, the discontinuity of Medicaid coverage for those youth, and the options for improving coverage, continuity of care and access to needed services post-discharge, including new opportunities provided by…

  • How Affordability of Employer Coverage Varies by Family Income

    Issue Brief

    This analysis looks at the share of family income people with employer-based coverage pay toward their premiums and out-of-pocket payments for medical care. The cost of employer sponsored health insurance—including premiums, deductibles, and other out-of-pocket costs—has risen steadily over time.

  • Insurer Strategies to Control Costs Associated with Weight Loss Drugs

    Issue Brief

    Affordable Care Act (ACA) Marketplace plans rarely cover GLP-1 drugs approved solely for obesity treatment, according to a an analysis of 2024 federal plan data. Wegovy, a drug that is approved for weight loss, is covered by just 1% of Marketplace prescription drug plans, compared to 82% of Marketplace prescription drug plans for Ozempic, which contains the same active ingredient as Wegovy (semaglutide) but is approved only for diabetes. This analysis examines publicly available formularies…

  • Claims Denials and Appeals in ACA Marketplace Plans in 2021

    Issue Brief

    This analysis of HealthCare.gov Marketplace insurers' transparency data finds that 17% of in-network claims were denied in 2021, with denial rates varying widely across insurers. Consumers appealed less than two-tenths of 1% of denied in-network claims.

  • Poll: Public Views “Big Beautiful Bill” Unfavorably by Nearly a 2-1 Margin; Democrats, Independents and Non-MAGA Republicans Oppose It, While MAGA Supporters Favor It

    News Release

    Medicaid Work Requirements Are Generally Popular, But Arguments Can Shift Views Nearly two-thirds (64%) of the public holds unfavorable views of the “One Big Beautiful Bill” passed last month by the House, nearly twice the share who view the bill favorably (35%), a new KFF Health Tracking Poll finds. The budget reconciliation bill that includes tax and budget cuts – much of which affect health care – is viewed unfavorably by large majorities of Democrats…