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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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  • This chart shows how the prevalence of surprise bills varies by condition.

    Before New Ban, the Prevalence of Surprise Bills

    Feature

    Patients with certain conditions appear to be at higher risk for receiving surprise bills. They should be aware of new federal protections against surprise bills and know how to seek out help if they have improperly received one.

  • Network Adequacy Standards and Enforcement

    Issue Brief

    Health plan networks affect patient access to care. This brief reviews options for setting and enforcing network adequacy standards and tools for making differences in plan networks more transparent.

  • Implications of Reduced Federal Medicaid Funds: How Could States Fill the Funding Gap?

    Issue Brief

    In this analysis, we present three scenarios of reductions in federal Medicaid spending and examine fiscal implications if states fill these financing gaps to maintain their programs and if all reductions are assumed to be in full effect in FFY 2015 (the most recent year for which Medicaid spending data is available). To fill these gaps in financing and maintain current Medicaid programs, we assume states will increase state spending for Medicaid by increasing state…

  • Health Insurance Premiums Under the ACA vs. AHCA: County-Level Data

    News Release

    The Kaiser Family Foundation’s interactive map now allows users to compare what consumers in each county would pay in health insurance premiums after tax credits in 2020 under the Affordable Care Act vs. the House GOP replacement plan, the American Health Care Act. The maps include estimates by county for current ACA marketplace enrollees at age 27, 40, or 60 with an annual income of $20,000, $30,000, $40,000, $50,000, $75,000, or $100,000. In addition to…

  • 10 Ways Women Could Be Affected by Repeal of the Affordable Care Act

    News Release

    Repeal of the Affordable Care Act could have a profound impact on women, as the law fundamentally changed women’s health coverage, benefits, and access to care. In a new issue brief, the Kaiser Family Foundation outlines 10 ways women could be affected if the ACA is repealed or its provisions are otherwise eliminated or modified, including through changes proposed in the House Republican replacement bill, the American Health Care Act. The brief discusses the potential…

  • Web Briefing for Journalists – ACA Cost-Sharing Subsidies: How One Decision Could Disrupt Obamacare Marketplaces

    Event Date:
    Event

    Premiums, insurer choice, and overall stability of 2018 Affordable Care Act (ACA) marketplaces could be affected by decisions from Congress and the Trump Administration on the health law’s cost-sharing reduction provision. With a legal appeal pending on a lawsuit from the U.S. House, the federal government and Congress are in a position to choose whether to continue reimbursing insurers for the subsidies, which were established as part of the ACA to reduce out-of-pocket costs for…