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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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  • Matching Health Benefit Packages to Health Needs: Key Issues To Consider In Health Reform

    Event Date:
    Event

    Three reports and a video collectively examine the range of health care needs and costs that people face today against the backdrop of the scope of health coverage that may be available to them under health reform. Children and Health Care Reform: Assuring Coverage That Meets Their Health Care Needs and Individuals With Special Needs and Health Reform: Adequacy of Health Insurance Coverage examine the needs of children and adults, respectively, focusing on those with…

  • Medicaid Long-Term Services and Supports: Key Changes in the Health Reform Law

    Issue Brief

    This issue brief examines new opportunities under the health reform law for states to balance their Medicaid long-term care delivery systems by expanding access to Medicaid home and community-based services (HCBS) programs. The brief outlines key provisions of the new law that expand HCBS benefit options, broaden financial and functional eligibility criteria, and provide additional financial incentives for states to further shift their Medicaid long-term services budgets to non-institutional settings. Issue Brief (.pdf)

  • Physician Workforce: The Next Generation

    Event Date:
    Event

    The new health reform law poses questions about how the increase in the insured population will affect the demand on the health care workforce. Will it increase the shortage among primary care physicians? What about specialists? How much of the workforce shortage can be alleviated by payment incentives in the new law for both primary care and general surgery, and other new incentives to practice in underserved areas? Are there enough effective efforts in place…

  • Coverage of Colonoscopies Under the Affordable Care Act’s Prevention Benefit

    Report

    The Affordable Care Act (ACA) requires private health insurers to cover recommended preventive services such as colonoscopies without any patient cost-sharing. This report finds that confusion over whether colon cancer screenings are preventive care or treatment means patients sometimes receive unexpected bills for the procedure. The report examines cost-sharing practices for colorectal screenings through interviews with experts and officials in the medical and insurance industries. This report was co-authored by The Kaiser Family Foundation, American…

  • Children and Oral Health: Assessing Needs, Coverage and Access

    Issue Brief

    This policy brief highlights the prevalence of dental problems among children and examines gaps in oral health coverage and access to dental care, as well as disparities by income and race/ethnicity. It also looks at out-of-pocket costs for dental care, explains the role of Medicaid and CHIP in dental care, coverage and access for children and describes the expansion of oral health coverage for children under the Affordable Care Act. Issue Brief (.pdf)

  • Survey on the Role of Health Care Interest Groups –Toplines

    Poll Finding

    These toplines are of a survey conducted jointly by NPR, the Kaiser Family Foundation, and the Harvard School of Public Health examines the public’s views and opinions of the role of health care interest groups in the ongoing federal health care debate. The survey examines whether people feel their views are represented in the ongoing legislative process and their level of trust in different groups. The survey is part of a series of projects about…

  • Expanding Medicaid under Health Reform: A Look at Adults at or below 133% of Poverty

    Issue Brief

    This issue brief from the Kaiser Commission on Medicaid and the Uninsured examines the key characteristics of the 17.1 million low-income uninsured adults who currently have incomes that would qualify them for Medicaid under the expansion of the program in health reform. The planned expansion of Medicaid to all individuals with incomes at or below 133 percent of the federal poverty level will establish a national foundation of coverage based on income. Adults whose incomes…

  • Health Care Reform Newsmaker Series: Sen. Chuck Grassley (R-Iowa)

    Event Date:
    Event

    Sen. Chuck Grassley (R-Iowa), ranking Republican member of the Senate Committee on Finance, appeared as a guest in the new series of Health Care Reform newsmaker briefings sponsored by the Kaiser Family Foundation, Families USA and the National Federation of Independent Business. The reporters-only briefings, designed to inform the public about prospects and options for health reform, feature a short presentation by an influential leader followed by an extended question-and-answer session.  Transcript (.pdf) Video

  • The Decline in the Uninsured in 2007: Why Did It Happen and Can It Last?

    Issue Brief

    This policy brief examines the underlying shifts in health insurance coverage in 2007, which resulted in a 1.5 million decrease in the number of uninsured people under age 65, due to increased public coverage. This includes about 300,000 in Massachusetts, which implemented its comprehensive health reform that year. The brief also projects that the current economic downturn and rising unemployment rate likely will cause the number of uninsured to grow by at least 2 million…

  • Health Affairs Article: Beyond Incrementalism? SCHIP and the Politics of Health Reform

    Report

    This article examines the political and legislative history of the Children's Health Insurance Program and analyzes the lessons for policymakers who are contemplating broader health care reform. It was published online in the journal Health Affairs and was authored by Jonathan Oberlander, an associate professor, social medicine and health policy and management, at the University of North Carolina at Chapel Hill, and Barbara Lyons, a vice president of the Kaiser Family Foundation and deputy director…