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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

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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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  • Helping People With HIV Navigate the Transition to ACA Coverage: Summary of a Roundtable Discussion

    Issue Brief

    In March 2013, the Kaiser Family Foundation convened key HIV/AIDS stakeholders from a variety of backgrounds to explore opportunities for maximizing the beneficial impact of the Affordable Care Act (ACA) for people living with HIV and examine strategies to help them navigate the transition to new health coverage. This report summarizes the information shared and key issues discussed at the meeting.

  • What is Medicaid’s Impact on Access to Care, Health Outcomes, and Quality of Care? Setting the Record Straight on the Evidence

    Issue Brief

    Medicaid now covers more than 1 in every 5 Americans, and millions of uninsured individuals will become newly eligible for Medicaid under the ACA. Considering Medicaid’s large and growing coverage role, an evidence-based assessment of the program’s impact on access to care, health outcomes, and quality of care is of major interest. This brief takes a look at what the research literature shows regarding the difference Medicaid makes.

  • Quick Take: Key Considerations in Evaluating the ACA Medicaid Expansion for States

    Fact Sheet

    A central goal of the Patient Protection and Affordable Care Act (ACA) is to significantly reduce the number of uninsured by providing a continuum of affordable coverage options through Medicaid and new Health Insurance Exchanges.  Following the June 2012 Supreme Court decision, states face a decision about whether to adopt the Medicaid expansion. These decisions will have substantial consequences for health coverage for the low-income population. The 3 key questions that states should consider in…

  • California’s Previously Uninsured After The ACA’s Second Open Enrollment Period

    Report

    The Kaiser Family Foundation California Longitudinal Panel Survey is a series of surveys that, over time, tracks the experiences and views of a representative, randomly selected sample of Californians who were uninsured prior to the major coverage expansions under the Affordable Care Act (ACA). The initial baseline survey was conducted with a representative sample of 2,001 nonelderly uninsured Californian adults in summer 2013, prior to the ACA’s initial open enrollment period. The second survey in…

  • New Survey Finds 68 Percent of Previously Uninsured Adult Californians Gained Coverage Since the ACA’s Implementation

    News Release

    Steep Drops in Problems Paying For and Getting Care among Recently Insured, But Affordability and Access Problems Remain Eligible Latinos Obtained Coverage at Similar Rates as Whites; People Ineligible Due to Immigration Status Now Make Up 41% of Remaining Uninsured   MENLO PARK, Calif. - About two thirds (68%) of previously uninsured Californians have health coverage after the Affordable Care Act's second open enrollment period, and this group is now much more likely to report…

  • New Survey Examines Assistance Provided to Consumers During Second Affordable Care Act Open Enrollment

    News Release

    A new Kaiser Family Foundation survey of insurance brokers and assistance programs examines the help they provided to consumers during the 2015 open enrollment period for Affordable Care Act coverage. The 2015 Survey of Health Insurance Marketplace Assister Programs and Brokers provides estimates of the number of people helped and the number and type of assister programs, while offering an in-depth look at assisters’ assessments of the enrollment process in the second year of the…

  • At CMS, the Mission Is Broader Than Medicare and Medicaid

    News Release

    In his latest column for The Wall Street Journal's Think Tank, Drew Altman discusses whether the Centers for Medicare and Medicaid Services' broad new responsibilities implementing the Affordable Care Act and a more proactive approach to Medicare payment signals that it’s time for (another) name change. All previous columns by Drew Altman are available online.

  • A Look at the Private Option in Arkansas

    Issue Brief

    Based on stakeholder interviews and early data on coverage, reduced uncompensated care costs, and other topics, this issue brief provides an initial look at implementation of Arkansas' Section 1115 Medicaid expansion demonstration waiver to require most adults newly eligible for Medicaid through the Affordable Care Act's Medicaid expansion to enroll in Marketplace plans.

  • How Many Employers Could be Affected by the Cadillac Plan Tax?

    Issue Brief

    As fall approaches, we can expect to hear more about how employers are adapting their health plans for 2016 open enrollments. One topic likely to garner a good deal of attention is how the Affordable Care Act’s high cost plan tax (HCPT), sometimes called the “Cadillac plan” tax or "Cadillac tax," is affecting employer decisions about their health benefits. The tax takes effect in 2018. The potential of facing an HCPT assessment as soon as…