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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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  • The Uninsured and the ACA: A Primer – Key Facts about Health Insurance and the Uninsured amidst Changes to the Affordable Care Act

    Report

    The Uninsured and the ACA: A Primer provides information on how insurance has changed under the ACA and more recent policy changes, how many people remain uninsured, who they are, and why they lack health coverage. It also summarizes what we know about the impact that a lack of insurance can have on the health outcomes and personal finances and the difference health insurance can make in people’s lives.

  • The Health Care Priorities and Experiences of California Residents

    Report

    This survey by the Kaiser Family Foundation and California Health Care Foundation gauges California residents’ views on health care priorities facing the state’s new governor and legislature, including health care affordability, access to care, mental health and substance use treatment, and provider shortages. It also highlights Californians’ experiences in the health care system, as well as views on the Affordable Care Act, Covered California, Medi-Cal, and proposals to advance a single-payer health insurance system in…

  • Testimony: Pre-Existing Conditions and Health Insurance

    Issue Brief

    KFF's Karen Pollitz testimony before the U.S. House Committee on Ways and Means on Jan. 29, 2019 examines the prevalence of pre-existing conditions, the impact of the Affordable Care Act's prohibition against medical underwriting and other provisions aimed at stabilizing the insurance risk pool, and the trade-offs involved in relaxing those provisions. 

  • Coverage at Work: The Share of Nonelderly Americans with Employer-Based Insurance Rose Modestly in Recent Years, but Has Declined Markedly Over the Long Term 

    News Release

    An improving economy and the Affordable Care Act’s individual mandate may be behind a modest increase in the share of Americans with job-based health insurance in recent years, but the long-term trend remains a downward one, according to a new KFF analysis. Data from the federal National Health Interview Survey show the share of the nonelderly population covered by workplace plans rose from 56.3 percent in 2013 to 58.4 percent in 2017. That was still…

  • Most Americans – Across Parties – Say 2018 Candidates’ Position on Pre-Existing Condition Protections Will Matter to Their Vote; Do Not Want Supreme Court to Overturn These ACA Protections

    News Release

    Half in Non-Expansion States Support Their State Expanding Medicaid; More if Tied to Work Requirements With less than four months to go until the Congressional midterm general election, a candidate’s position on continuing protections for people with pre-existing health conditions is at the forefront of the many health care issues on voters’ minds, finds the latest Kaiser Family Foundation tracking poll. Continuing pre-existing condition protections ranks first among six other candidate positions on health care…

  • Community Health Centers’ Experiences in a More Mature ACA Market

    Issue Brief

    Community health centers provide comprehensive primary care services in some of the most underserved communities in the nation. This brief summarizes findings from the Kaiser Family Foundation/Geiger Gibson Program in Community Health Policy 2018 Health Center Survey to provide a snapshot of health centers’ outreach and enrollment activities as well as changes in service capacity, and overall financial condition since implementation of the ACA.

  • New Analysis Maps Prevalence of Pre-Existing Conditions by Metro Area

    News Release

    A new Kaiser Family Foundation analysis maps rates of pre-existing conditions across 129 metropolitan and micropolitan areas in the U.S., finding that even within the same state, the prevalence of such conditions can vary substantially. For example, 34 percent of residents of Florence, South Carolina have a pre-existing condition, but further south in Charleston and Hilton Head, the rate is 24 percent. The share of non-elderly adults with a pre-existing condition ranges from 41 percent…

  • Kaiser Health Tracking Poll – Late Summer 2018: The Election, Pre-Existing Conditions, and Surprises on Medical Bills

    Feature

    The latest Kaiser Health Tracking Poll continues to find pre-existing conditions as a widespread concern with most Americans saying it is very important that the Affordable Care Act’s (ACA) protections for people with pre-existing conditions remain law. With health care costs continuing to be a major topic in the 2018 campaigns, the poll looks at the public’s experiences with unexpected medical bills and finds that this tops a list of possible problems people could face.…

  • Poll: The ACA’s Pre-Existing Condition Protections Remain Popular with the Public, including Republicans, As Legal Challenge Looms This Week

    News Release

    Public Not Confident in President Trump’s Calls on Drug Companies to Lower Prices As a federal court considers a challenge to the Affordable Care Act’s constitutionality, the public, including most Republicans, wants protections for people with pre-existing conditions preserved, the latest Kaiser Family Foundation tracking poll finds. Large majorities of Americans say it is “very important” to retain the ACA provisions that prevent insurance companies from denying coverage based on a person’s medical history (75%)…

  • How Repeal of the Individual Mandate and Expansion of Loosely Regulated Plans are Affecting 2019 Premiums

    Issue Brief

    In health insurance systems designed to protect people with pre-existing conditions and guarantee availability of coverage regardless of health status, countervailing measures are also needed to ensure people do not wait until they are sick to sign up for coverage (as doing so would drive up average costs for other enrollees). The Affordable Care Act (ACA) included a variety of “carrots” (e.g., premium tax credits and cost-sharing reductions) and “sticks” (e.g., the individual mandate penalty…