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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  • Interactive Maps: Estimates of Enrollment in ACA Marketplaces and Medicaid Expansion

    Interactive

    As the 115th U.S. Congress deliberates the future of the Affordable Care Act, also known as Obamacare, an interactive map from the Kaiser Family Foundation provides estimates of the number of people in each congressional district who enrolled in a 2017 ACA marketplace health plan and the political party of each district’s representative as of October 2017. The analysis also includes maps charting the total number of people enrolled under the ACA Medicaid expansion in…

  • Data Note: Estimated Medicaid Savings in the House Budget Resolution from March 2016

    Issue Brief

    While the current Budget Resolution under consideration will set the framework for a repeal of the ACA, the Budget Resolution that passed in March 2016 provides insight into other Medicaid cuts that could be considered by Congress later this year. This Data Note examines proposed reductions in federal Medicaid funding under the March 2016 House Budget Resolution.

  • New Survey Finds 72% of Previously Uninsured Californians Now Have Coverage, Including 78% of Those Eligible for New Affordable Care Act Options

    News Release

    For Remaining Uninsured Residents, Cost and Immigration Status Are Main Obstacles Three years after the Affordable Care Act’s coverage expansions were fully implemented in California, nearly three quarters (72%) of the state’s previously uninsured residents now have health coverage, finds the fourth Kaiser Family Foundation Longitudinal Panel Survey, which is tracking the experiences of a randomly selected group of Californian adults who were uninsured in 2013. This is similar to the share who reported having insurance…

  • Medicaid Coverage of Family Planning Benefits: Results from a State Survey

    Report

    This survey of states’ Medicaid family planning policies under fee-for-service finds wide coverage of most prescription contraceptives among 40 states and the District of Columbia (DC), but variable coverage of emergency contraceptives and other family planning-related services. It is the first published report on state coverage of family planning benefits since the passage of the Affordable Care Act (ACA).

  • Current Flexibility in Medicaid: An Overview of Federal Standards and State Options

    Issue Brief

    The Trump Administration and new Congress have indicated that they will seek to cap Medicaid financing through a block grant or per capita cap, reduce federal funding for the program, and offer states increased flexibility to manage their programs within this more limited financing structure. The size of the federal reductions as well as which federal program standards would remain in place and what increased flexibility might be provided to states under such proposals would…

  • Survey Finds Many Primary Care Physicians Have Negative Views of the Use of Quality Metrics and Penalties for Unnecessary Hospital Readmissions 

    News Release

    Primary Care Providers View Health IT as Improving Quality, But Tilt Negatively on ACOs Half of the nation's primary care physicians view the increased use of quality-of-care metrics and financial penalties for unnecessary hospitalizations as potentially troubling for patient care, according to a new survey from The Commonwealth Fund and the Kaiser Family Foundation. Fifty percent of primary care physicians say the increased use of quality metrics to assess provider performance is having a negative…

  • The ‘Private Option’ Medicaid Expansion in Arkansas Has Helped Reduce the Uninsured Rate and Uncompensated Care Costs While Boosting the State’s ACA Marketplace

    News Release

    A new issue brief from the Kaiser Family Foundation finds that Arkansas’ “private option” Medicaid expansion has helped reduce the number of uninsured and bring down uncompensated care costs while strengthening the state’s ACA marketplace. A Look at the Private Option in Arkansas draws upon early data as well as interviews conducted in spring 2015 with state officials, providers, insurance carriers, and consumer advocates to provide an initial look how implementation of the private option…

  • Employer Family Health Premiums Rise 4 Percent to $17,545 in 2015, Extending a Decade-Long Trend of Relatively Moderate Increases

    News Release

    Since 2010, Deductibles for All Workers Have Risen Almost Three Times as Fast as Premiums and About Seven Times as Fast as Wages and Inflation Facing New Requirements, Few Employers Make Changes to Workers' Hours Menlo Park, Calif. – Single and family premiums for employer-sponsored health insurance rose an average of 4 percent this year, continuing a decade-long period of moderate growth, according to the Kaiser Family Foundation/Health Research & Educational Trust (HRET) 2015 Employer Health Benefits…

  • Kaiser Health Tracking Poll – November 2017: The Role of Health Care in the Republican Tax Plan

    Feature

    As Republicans in Congress continue efforts to pass tax reform, the November Kaiser Health Tracking Poll examines views of the plans and how they relate to health care issues. Overall, reforming the tax code is seen as a “top priority” for President Trump and Congress by about three in ten (28 percent), falling well-behind several health care issues such as reauthorizing funding for the State Children’s Health Insurance Program (CHIP) (62 percent) and stabilizing the…