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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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  • Health Insurance Transparency under the Affordable Care Act

    Perspective

    In February, a final rule was issued implementing the Affordable Care Act (ACA) requirement that all health plans provide a uniform summary of coverage for all enrollees and applicants. The idea of providing easy-to-understand summaries of coverage is, in fact, the most popular provision in the ACA, according to a recent Kaiser tracking poll. That finding suggests powerful consumer frustration over the complexity of health insurance and the difficulty people face evaluating health insurance choices and understanding…

  • July Kaiser Health Tracking Poll: A Focus On The Mandate and the Medicaid Expansion in the Aftermath of the Supreme Court Decision

    Perspective

    This second July poll reports in further depth on public opinion about the Affordable Care Act (ACA) in the wake of the Supreme Court decision. The Supreme Court’s decision that the individual mandate was constitutional as a tax appears to have had little impact on opinion about the already largely unpopular requirement that most people have health coverage or potentially face a penalty. Sixty-six percent of the public view the mandate negatively when it is…

  • Is a Death Spiral Inevitable If There is No Mandate?

    Perspective

    If the Supreme Court acts within the next couple of weeks to overturn the individual mandate in the Affordable Care Act (ACA) while leaving the rest of the law intact, expect to hear a lot about how the individual insurance market will be destined for a "death spiral." When compared with implementing the ACA in full as planned, there's a consensus that eliminating the mandate would increase premiums and mean that far fewer of the…

  • How Small Business Owners Get Health Insurance

    Perspective

    As with any economic policy issue, there has been much discussion of how the Affordable Care Act (ACA) will affect small businesses. But, there’s been very little focus on how the health reform law will affect the owners of those businesses as people. As our recently released Employer Health Benefits Survey shows, small businesses are much less likely than larger businesses to offer health benefits to their workers. Half of businesses with 3-9 workers and…

  • Americans Remain Divided on Health Reform But Are Confused About The Law And How And When It Will Affect Them

    News Release

    Many Provisions That Take Effect in 2010 Are Popular and Have Bipartisan Support Cable News Tops List of the Public’s “Most Important” Information Sources MENLO PARK, Calif. –The first Kaiser Health Tracking Poll fielded since the passage of health reform last month finds that 8 in 10 Americans know that President Obama signed the legislation  into law.  But 55 percent say they are confused about the law and more than half (56%) say they don’t yet have…

  • The ACA and Fluoridation: The Power of Political Symbols

    Perspective

    In the 1950s, water fluoridation became a public health controversy that morphed into a symbolic issue of larger proportions. For its opponents, fluoridation came to symbolize big government and even for some, a communist threat. The controversy became so odd that it was parodied in Stanley Kubrick’s 1964 film “Dr. Strangelove,” in which General Jack Ripper starts a nuclear war to stop a communist plot to “sap and impurify all of our precious bodily fluids”…

  • Premium Assistance in Medicaid and CHIP: An Overview of Current Options and Implications of the Affordable Care Act

    Issue Brief

    Premium assistance is the use of public funds through Medicaid or the Children’s Health Insurance Program (CHIP) to purchase private coverage. States have pursued premium assistance with varied objectives, including covering parents not otherwise eligible for public coverage and promoting the use of private coverage. Implementation of the Affordable Care Act (ACA) coverage expansions is likely to spark renewed interest in premium assistance options. This brief provides an overview of premium assistance options and examines…

  • 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…