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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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  • Medicaid Coverage and Spending in Health Reform: National and State-By-State Results for Adults at or Below 133% FPL

    Report

    This analysis, performed by the Urban Institute for the Kaiser Commission on Medicaid and the Uninsured, shows that the expansion of Medicaid under the health reform law will significantly increase the number of people covered by the program and reduce the uninsured in states across the country, with the federal government picking up the vast majority of the cost. The analysis is among the first to show for all 50 states and the District of…

  • Kaiser Health Tracking Poll — May 2010

    Feature

    Confusion over the new health reform law declined but remains widespread, with 44 percent of the public saying they were confused in May, compared to 55 percent in April. Moreover, more than a third of Americans (35%) say they do not understand what the impact of the law will be on themselves and their families, while 61 percent report feeling they do understand what that impact will be. Americans continue to report getting information about…

  • Pathways to Payment Innovation in a Post-Health Reform Era

    Event Date:
    Event

    The new health reform law contains a number of changes in the way health care is paid for, particularly in public programs such as Medicare and Medicaid. The Alliance for Health Reform and The Commonwealth Fund sponsored a May 10 briefing which explored topics such as how some health care providers will be paid differently under reform, what effect this might have on payments across the health care system, and how providers are reacting. For…

  • What’s in There? The New Health Reform Law and Private Insurance

    Event Date:
    Event

    This briefing focuses on how the reform law affects access to private coverage, including the new federal high-risk pools, tax credits for small businesses, health insurance exchanges, the individual mandate and employer obligations. This briefing, cosponsored by the Alliance for Health Reform and the Kaiser Family Foundation, explored these and other issues. For more information, please visit Alliance's event page. Full Video    Speakers for this session: The panel is co-moderated by Diane Rowland of…

  • Summary of Key Changes to Medicare in 2010 Health Reform Law   

    Issue Brief

    Summary of Key Changes to Medicare in 2010 Health Reform Law . This brief provides a detailed look at the improvements in Medicare benefits, changes to payments for providers and Medicare Advantage plans, various demonstration projects and other Medicare provisions in the law. It includes a timeline of key dates for implementing the Medicare-related provisions in the law.

  • Explaining Health Reform: Medicare and the New Independent Payment Advisory Board

    Issue Brief

    This brief describes how the new board created under the 2010 health reform law is expected to limit the growth in Medicare spending over time. Starting in 2014, if projected per capita Medicare spending exceeds targets set in the law, the board must recommend ways to reduce Medicare spending, while maintaining quality and access to care for beneficiaries. The board’s recommendations automatically take effect the next year unless Congress adopts an alternative plan to achieve…

  • Explaining Health Reform: Key Changes in the Medicare Advantage Program

    Issue Brief

    This brief examines the changes in the 2010 health reform law affecting the Medicare Advantage program, which gives beneficiaries the option of enrolling in private insurance plans for their Medicare benefits, instead of the traditional fee-for-service program. The reform law will gradually reduce Medicare payments to these plans to bring the average payment closer to the costs of traditional fee-for-service Medicare, while rewarding plans with high-quality ratings. The brief also describes new benefit requirements for…

  • Health Care Reform and the CLASS Act

    Issue Brief

    This issue brief examines the Community Living Assistance Services and Supports (CLASS) program, a component of the health reform law that establishes a national, voluntary insurance program for purchasing community living services and supports that is designed to expand options for people who become functionally disabled and require long-term help. This brief describes the major components of the CLASS program including its financing, eligibility criteria, benefit design and interaction with Medicaid. Issue Brief (.pdf)

  • The New Health Reform Law and Medicaid

    Event Date:
    Event

    This briefing, cosponsored by the Alliance for Health Reform and the Kaiser Family Foundation, explores the provisions of the Patient Protection and Affordable Care Act (PPACA) and the Health Care and Education Reconciliation Act of 2010 (HCERA). A panel of experts explain how PPACA and HCERA affect Medicaid, and answer questions about their Medicaid-specific provisions, including Medicaid eligibility, financing, and other implementation issues. For more information, please visit Alliance's event page. Full Video   Speakers…

  • Explaining Health Care Reform: Questions About Medicaid’s Role

    Issue Brief

    Medicaid plays a major role in covering more of the uninsured under the new health reform law. The new law includes a significant expansion of Medicaid, an individual requirement to obtain health insurance, and subsidies to help low-income individuals buy coverage through newly established Health Benefit Exchanges. This brief explains the how Medicaid works today and answers some key questions about Medicaid’s role in health reform. Issue Brief (.pdf)