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Affordable Care Act

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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  • Insurance Coverage of Contraceptives

    Perspective

    In this post, we answer some of the key questions about the new contraceptive coverage policy generally, and more specifically, how it will be applied to religious organizations.

  • Betting on Private Insurers

    Perspective

    Just-released estimates of national health spending in 2010 by the Centers for Medicare and Medicaid Services (CMS) show that 45% of our health care spending is financed by the federal and state governments, primarily through the Medicare and Medicaid programs. This share has grown temporarily in recent years because of the economic downturn, as private insurance has declined and Medicaid has grown. It has also increased due to our demographic destiny: the growing cohort of baby…

  • January 2012 Kaiser Health Tracking Poll: The ACA and the Supreme Court

    Perspective

    As the Supreme Court prepares to hear legal challenges to the health reform law in March, the latest Kaiser Health Tracking Poll shows that most Americans (59 percent) expect the Justices to base their ruling on their own ideological views rather than their interpretation of the law (28 percent). As for the public’s views on the individual mandate, the poll once again shows that it continues to be unpopular with the public (67 percent unfavorable versus…

  • Transparency and Complexity

    Perspective

    This fall a new rule takes effect requiring all private health plans to offer a uniform, simple to read, summary of benefits and coverage (SBC).  The SBC will provide consumers with standardized information about how plans cover essential health benefits and what coverage limits and cost sharing applies. The SBC is one of the most popular provisions of the ACA.  Consumers often find health insurance difficult to understand and would no doubt welcome a plainly written…

  • KFF Data Note: Americans’ Views on the Personal Impact of the ACA and the Supreme Court’s Decision

    Perspective

    As the Supreme Court hears cases challenging the constitutionality of parts of the Affordable Care Act, a relatively small share of the public thinks the Supreme Court’s decision will have a lot of impact on their family (28 percent). At the same time, the public is divided as to whether the law overall will leave their own families better off (26 percent), worse off (33 percent), or if it won’t make much difference (34 percent).…

  • KFF Data Note: A Snapshot of Public Opinion on the Individual Mandate

    Perspective

    This week, the Supreme Court hears arguments on several challenges to the Patient Protection and Affordable Care Act (ACA), including the provision that requires individuals to purchase health insurance as of 2014, known as the individual mandate. For the two years since the law’s passage, and during the debate leading up to it, this provision has been one of the most controversial aspects of the law. As the lawyers, policymakers, ACA opponents and supporters focus…

  • 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…

  • Public Opinion on the ACA: Cruising or Turbulent Ride?

    Perspective

    Regular readers of the Kaiser Health Tracking poll know by now that public opinion on the Affordable Care Act (ACA) has been at a steady cruising altitude since it was signed into law on March 23, 2010, with a little over four in ten viewing the law favorably and a similar share unfavorably. But, has public opinion on the law since passage been more turbulent for different groups of Americans, for example, those with lower…

  • How the ACA Changes Pathways to Insurance Coverage for People with HIV

    Perspective

    There are multiple sources of insurance coverage and care for people with HIV in the United States.  These include public programs, such as Medicaid and Medicare, and the Ryan White HIV/AIDS program, as well as private coverage through an employer or in the individual market. Medicaid, the nation's principal safety-net health insurance program for low-income Americans, is estimated to cover the largest share of people with HIV. Fewer are covered by Medicare, the federal health…

  • 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…