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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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  • Private Insurers Are Expected to Pay $2.1 Billion in Rebates to Consumers This Year for Excessive Health Insurance Premiums Relative to Health Care Expenses

    News Release

    Private insurance companies are expecting to pay out $2.1 billion in rebates to consumers this fall, the second highest amount ever issued under the Affordable Care Act, according to a new KFF analysis. The rebates, which are calculated based on the share of premium revenues that insurance companies paid out for health care expenses and quality improvement, are roughly $400 million lower than last year’s record high of $2.5 billion, but more than 50 percent…

  • Expanding Medicare to Adults at Age 60 Years—Medicare-for-More?

    Perspective

    In this column for the JAMA Health Forum, Larry Levitt examines the implications of lowering Medicare’s age of eligibility, which is emerging as a potential pathway toward Medicare-for-all or a public option among single-payer advocates. He explores the implications for costs, industry, people and broader reform efforts.

  • Performance Measurement Under Health Reform: Proposed Measures For Eligibility and Enrollment Systems and Key Issues and Trade-offs to Consider

    Issue Brief

    The adoption of new eligibility and enrollment requirements under the Affordable Care Act (ACA) provides states and the federal government an important opportunity to implement a meaningful set of performance measures for eligibility and enrollment systems. Performance measures could be used at the federal level to assess state performance in meeting the ACA’s eligibility and enrollment goals, while states could use measures for program management and quality improvement. This brief seeks to inform the development…

  • Medicaid Spending Growth and the Great Recession, 2007-2009

    Fact Sheet

    This fact sheet examines how the recent recession drove up Medicaid enrollment as millions of Americans lost jobs and income, and how that increase in enrollment has been the primary cause of the increase in overall Medicaid spending. Fact Sheet (.pdf)

  • Kaiser Health Tracking Poll — November 2009

    Poll Finding

    The November Kaiser Health Tracking Poll shows little movement in measures of public opinion about health reform from recent months. Among the new findings is a ranking of the public's top priorities from among a list of elements of the legislation. There were both similarities and differences in priorities across partisan groups: while assuring the availability of affordable plans ranked in the top three priorities for Democrats, Republicans and independents, deficit neutrality ranked in the…

  • Health Care in the 2008 Presidential Primaries

    Poll Finding

    This analysis find that the sharply contrasting health care platforms of the leading Democratic and Republican presidential candidates reflect dramatic differences in the perspectives of their primary voters. The article analyzes a newly released Kaiser/Harvard survey of likely primary voters in 35 states (and the District of Columbia) with January or February primaries or caucuses, as well as data from 10 other recent surveys by national media polling organizations. The article, "Health Care in the…

  • Children’s Health Insurance Program Reauthorization Act of 2009 (CHIPRA)

    Fact Sheet

    This fact sheet provides an overview of provisions of the Children's Health Insurance Program Reauthorization Act of 2009 (CHIPRA), which was signed into law in February 2009. The Act extends and expands the State Children's Health Insurance Program (now referred to as CHIP, not SCHIP) that was enacted with bipartisan support a decade ago as part of the Balanced Budget Act of 1997 (BBA). Fact Sheet (.pdf) Fact Sheet: State Adoption of Coverage and Enrollment…