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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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  • An Overview of New CMS Data on the Number of Adults Enrolled in the ACA Medicaid Expansion

    Issue Brief

    New preliminary data from the Medicaid Budget and Expenditure System (MBES) released by CMS details for the first time the number of adults enrolled in Medicaid under the new Affordable Care Act (ACA) Medicaid expansion category. This issue brief provides an overview of the new data as well as how it differs from the Performance Indicator data.

  • Medicare’s Role in Health-Care Payment Reform

    News Release

    In his latest column for The Wall Street Journal's Think Tank, Drew Altman explores whether Secretary Burwell's announcement this week about Medicare's payment reform initiative is another sign that the public sector is becoming the engine driving payment and delivery reform. All previous columns by Drew Altman are available online.

  • Medicare’s Role in Health-Care Payment Reform

    From Drew Altman

    In this column for The Wall Street Journal's Think Tank, Drew Altman explores whether Secretary Burwell's announcement this week about Medicare's payment reform initiative is another sign that the public sector is becoming the engine driving payment and delivery reform.

  • New Kaiser Survey Finds Eleven Million Newly Insured Adults As of Mid-December, But Nearly Half Who Remained Uninsured One Year After Full Implementation of the Affordable Care Act Were Eligible for Medicaid or Marketplace Tax Credits

    News Release

    Many Of The Remaining Uninsured Say They Didn’t Seek Coverage or Considered It Too Expensive, While Others Were Told (Or Believed) They Were Not Eligible About 11 million adults had become newly insured under the Affordable Care Act by mid-December 2014, according to a new national survey of more than 10,000 adults by the Kaiser Family Foundation.  Nearly half of the approximately 30 million adults who remained uninsured were eligible for assistance under the law,…

  • Adults who Remained Uninsured at the End of 2014

    Issue Brief

    This report, based on the 2014 Kaiser Survey of Low-Income Americans and the ACA, profiles the adult population that remained uninsured as of Fall 2014. It describes the characteristics of this population, examines why they lack insurance coverage and reasons for not enrolling in ACA coverage, and provides information on the coverage options available to the remaining uninsured and their plans for obtaining coverage in 2015.

  • Proposed Medicaid Expansion in Tennessee

    Fact Sheet

    This fact sheet describes Tennessee’s 1115 waiver demonstration project, Insure Tennessee, which expands the State’s Medicaid program under the Affordable Care Act.

  • Kaiser Health Policy News Index: January 2015

    Feature

    The January 2015 Kaiser Health Policy News Index finds fewer than 3 in 10 Americans report paying attention to recent health policy news stories; considerably less than the shares who report following national and international news stories such as tension between the police and the mayor in New York City and the Charlie Hebdo attack in Paris.

  • Kaiser Health Tracking Poll: January 2015

    Feature

    The latest Kaiser Health Tracking Poll finds though few Americans are paying attention to the pending Supreme Court case over whether the health care law says that people in all states can get financial help to buy health insurance, most say they would want Congress and their state to act to fix potential gaps should the Supreme Court rule in favor of the plaintiffs. With a new Republican majority controlling both Houses of Congress, the…

  • Majority of Public Says Congress Should Act to Close Gaps if the Supreme Court Bars Financial Help for Purchasing Insurance in States Relying on healthcare.gov; Most in Potentially Affected States Want Their State To Set Up Its Own Marketplace if Needed

    News Release

    Views Mixed on Changes to Definition of Full-Time Work For Employer Mandate, with More Opposed than Supportive, And a Third Saying They Don't Know Enough to Say Public Remains Divided Over Next Steps for the Affordable Care Act, Though Most Expect Major or Minor Changes under GOP Congress this Year Though few Americans are paying attention to the pending Supreme Court case over whether the health care law says that people in all states can…

  • Federal and State Standards for “Essential Community Providers” under the ACA and Implications for Women’s Health

    Issue Brief

    Safety net providers such as community health centers and family planning clinics have served a significant role in the provision of primary care and reproductive health care services to low-income and uninsured people, particularly women. The Affordable Care Act (ACA) has a provision aimed at assuring that newly-insured individuals, as well as those without coverage, can continue seeing their trusted safety net providers, also called Essential Community Providers (ECPs). This brief reviews the definition of…