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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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  • Key Lessons from Medicaid and CHIP for Outreach and Enrollment Under the Affordable Care Act

    Issue Brief

    The Affordable Care Act (ACA) will significantly increase coverage options through an expansion of Medicaid and the creation of new health insurance exchange marketplaces. However, effective outreach and enrollment efforts will be key to ensuring that new coverage opportunities translate into increased coverage. Based on a review of existing research, this brief identifies five key lessons learned through previous Medicaid and CHIP experience to help inform outreach and enrollment under the ACA. The brief is…

  • Quality of Care in Community Health Centers and Factors Associated with Performance

    Issue Brief

    This study examines quality among health centers relative to Medicaid managed care organizations (MCOs). Chronic care quality among health centers is high; gaps in women’s preventive care are a concern. Lower-performing health centers have very high uninsured and homeless rates. The expansion of Medicaid and private insurance under the ACA may foster gains in health center quality performance.

  • Consumer Assets and Patient Cost Sharing

    Issue Brief

    Higher cost sharing in private insurance has been credited with helping to slow the growth of health care costs in recent years. For families with low incomes or moderate incomes, however, high deductibles, out-of-pocket limits and other cost sharing can be a potential barrier to care and may lead these families to significant financial difficulties. This issue brief uses information from the Federal Reserve Board's 2013 Survey of Consumer Finances to look at how household…

  • If Health Insurance Subsidies Are Struck Down, States Will Need Time

    From Drew Altman

    In this column for The Wall Street Journal's Think Tank, Drew Altman explores a practical timetable for state action if the Supreme Court rules in favor of the plaintiffs in King V. Burwell and ponders what Republicans in Congress might do.

  • Health-Care Deductibles Climbing Out of Reach

    From Drew Altman

    In this column for The Wall Street Journal's Think Tank, Drew Altman explores the trend of higher deductibles in health plans and discusses a new analysis showing that many people with private insurance don’t have sufficient financial resources to pay a mid- or high-range deductible.

  • Kaiser Health Tracking Poll: March 2015

    Feature

    As the Affordable Care Act (ACA) marks its fifth anniversary, this month’s poll finds the gap between favorable and unfavorable opinions of the law has narrowed to the closest margin in over two years. Although the Supreme Court heard oral arguments for the King v. Burwell case in early March, the majority of the public continues to say they have heard only a little or nothing at all about the case. The survey also includes…

  • At Five Year Anniversary of the ACA, Gap Between Favorable and Unfavorable Views Among The Public Narrows to Smallest Spread in More Than Two Years

    News Release

    Most Expect Negative Consequences if Supreme Court Prohibits Subsidies in States Without Their Own Insurance Exchanges; Two Thirds of the Public and Those in Affected States Want Congress or Their State to Close Any Gaps As April 15 Tax Deadline Nears, Nearly Half Unaware Insurance Reporting Requirement Starts This Year Five years after President Obama signed the Affordable Care Act, this month's Kaiser Health Tracking Poll finds the closest split between favorable and unfavorable views…

  • Measles Outbreak and Vaccination Debate Capture Public’s Attention

    News Release

    Those Following Measles Story More Likely To Say They Worry About the DiseaseThe public paid more attention to news coverage of the measles outbreak in the U.S. and the resulting debate on whether vaccinations should be required for all kids than any other news story included in this month's Kaiser Health Policy News Index. A total of 70 percent of Americans say they closely followed the measles story, more than say the same about the…