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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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  • Faces of the Medicaid Expansion: Experiences and Profiles of Uninsured Adults Who Could Gain Coverage

    Issue Brief

    These two papers provide insight into how state decisions to expand Medicaid under the Affordable Care Act are likely to impact people. Based on focus groups and interviews conducted in Cincinnati, Houston, Las Vegas and Tampa with uninsured adults who could be eligible for the Medicaid expansion in 2014, these papers highlight the experiences of uninsured adults and the significant health and financial consequences of being uninsured, which sometimes impact their ability to work and…

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    Implications of the Affordable Care Act for People With HIV Infection and the Ryan White HIV/AIDS Program: What Does the Future Hold?

    Issue Brief

    There are numerous aspects of the Affordable Care Act that will be important for people with HIV in the U.S., -- however, it is unlikely that these changes will address all the needs of people with HIV. The Ryan White HIV/AIDS Program will thus remain crucial for the provision of adequate health care to HIV-infected individuals, but it will need to change. Changes in the Ryan White Program’s role will depend largely on state decisions…

  • Getting into Gear for 2014: Shifting New Medicaid Eligibility and Enrollment Policies into Drive

    Report

    On January 1, 2014, many key provisions of the Affordable Care Act (ACA) will start to go into effect, including the expansion of Medicaid to low-income adults and the launch of new Medicaid eligibility and enrollment processes, which are designed to move toward a coordinated enrollment system across health coverage programs, including Medicaid, CHIP, and the new Health Insurance Marketplaces. Over the past year, states have made steady and significant progress preparing for these changes,…

  • Data Note: California’s Young Uninsured – A Look at 19- to 34-Year Olds Pre-ACA Rollout

    Poll Finding

    A Data Note based on the Kaiser Family Foundation California Uninsured Baseline Survey In California, as across the United States, the young uninsured are a key piece of the new Affordable Care Act (ACA) marketplace puzzle. Having a good-sized component of young people, with their generally more robust health and less frequent need for medical care and prescription drugs, in the newly created insurance pools would provide an important counterbalance to the incoming group of…

  • Transitioning Beneficiaries with Complex Care Needs to Medicaid Managed Care: Insights from California

    Issue Brief

    This brief examines how health service providers, plan administrators, and community-based organizations in Contra Costa, Kern, and Los Angeles Counties experienced the transition of Medi-Cal-only seniors and persons with disabilities (SPDs) to managed care as part of the state’s “Bridge to Reform” Medicaid waiver. Findings presented may inform similar transitions of high-need beneficiaries in other states and coverage expansions in 2014 under the Affordable Care Act.

  • California’s Health Care Environment and Health Reform Efforts: June 2013 Update

    Issue Brief

    This brief provides and update of the health care and health policy environment in California, discussing the budgetary environment, implementation of the state's "Bridge to Reform" Medicaid waiver, and efforts to prepare for coverage expansions and new coverage options in 2014 under the Affordable Care Act.

  • Medicaid Expansion through Premium Assistance: Key Issues for Beneficiaries in Arkansas’ Section 1115 Demonstration Waiver Proposal

    Issue Brief

    This issue brief provides background about Medicaid premium assistance in the individual health insurance market, summarizes major components of Arkansas’ Section 1115 demonstration waiver application to implement the Affordable Care Act’s Medicaid expansion through premium assistance, and considers key issues affecting beneficiaries.

  • A Discussion with Leading Medicaid Directors: As FY 2013 Ends, Looking toward Health Care Reform Implementation in 2014

    Issue Brief

    The Kaiser Commission on Medicaid and the Uninsured convened a focus group discussion with Medicaid directors who serve on the Board of the National Association of Medicaid Directors (NAMD). The discussion focused on state progress and concerns about implementing the ACA including eligibility system changes and state action on the Medicaid expansion decision as well as activity around payment and delivery system reform, and other budget and enrollment trends. The discussion took place in May…