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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  • Understanding The Medicaid And CHIP Maintenance of Eligibility Requirements

    Fact Sheet

    This fact sheet examines the provisions in the Patient Protection and Affordable Care Act (ACA) that require states to maintain eligibility and enrollment standards for Medicaid and the Children's Health Insurance Program. These maintenance of eligibility (MOE) provisions were designed to keep Medicaid and CHIP coverage stable until coverage expands under the health reform law. Under the MOE provisions, to receive federal Medicaid funds, states cannot impose eligibility and enrollment policies that are more restrictive…

  • Articles Examine Data and Issues For Expanding Integrated Care Models For Dual-Eligible Beneficiaries

    Report

    As state and federal policymakers move to develop and test integrated care models for people dually eligible for Medicare and Medicaid, two new Kaiser Family Foundation articles in the June 2012 issue of Health Affairs highlight the diverse needs and challenges facing these 9 million beneficiaries, describe their current care arrangements, and raise issues to consider for proposed reforms aimed at better coordinating their care and reducing health care spending. The first highlights the diversity…

  • The Cost and Coverage Implications of the ACA Medicaid Expansion: National and State-by-State Analysis

    Report

    A central goal of the Patient Protection and Affordable Care Act (ACA) is to significantly reduce the number of uninsured by providing a continuum of affordable coverage options through Medicaid and new Health Insurance Exchanges. Following the June 2012 Supreme Court decision, states face a decision about whether to adopt the Medicaid expansion. These decisions will have enormous consequences for health coverage for the low-income population. This analysis uses the Urban Institute’s Health Insurance Policy…

  • Explaining Health Care Reform: How Might a Reform Plan Be Financed?

    Issue Brief

    One of the key challenges in enacting a health care reform plan is how to finance it among government, employers, and individuals. Of particular concern to policymakers is what effect a health reform plan would have on government spending and the federal budget. President Obama and Congressional leaders have said that any health reform plan should not add to the budget deficit over a 10 year period. This brief explains the likely sources of added…

  • Health Reform: Lessons From Massachusetts

    Event Date:
    Event

    As Congress debates comprehensive national health reform, the Kaiser Family Foundation has two reports and an updated fact sheet that examine state-level health reform in Massachusetts and the lessons it offers for policymakers in Washington. Consumers’ Experience in Massachusetts: Lessons For National Health Reform and In Pursuit of Affordable Health Care: On the Ground Lessons from Families in Massachusetts, examine the impact of health reform on the lives of ordinary people in the state, including…

  • Pulling It Together: Implementation Is Forever

    Perspective

    Now that historic health reform legislation is law, everyone is rightfully focused on implementation. There are two very different ways to look at implementation. One is the more legalistic worm's eye view, which sees implementation largely as the process of putting into effect what was written in the law. In the worm's eye view implementation proceeds in a linear fashion from legislation, to regulations specifying what the statute calls for in greater detail, to operations…

  • Quick Take: Geographic Variation in Dual Eligible Enrollment

    Fact Sheet

    Over 9 million elderly Americans and younger persons with disabilities are jointly enrolled in the Medicaid and Medicare programs.  These “dual eligibles” receive coverage for most medical services from Medicare, and they also receive Medicaid assistance for Medicare premiums and cost-sharing and coverage of benefits not offered under Medicare (such as long-term care).  Dual eligibles are among the sickest and poorest individuals covered by Medicare and Medicaid and, as a group, account for a disproportionate…

  • 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…

  • An Overview of State Approaches to Adopting the Medicaid Expansion

    Issue Brief

    State approaches to adopting the Affordable Care Act’s Medicaid expansion have varied greatly by state based on state law, the political context, or other factors. While it does not cover how every state has enacted the Medicaid expansion, this issue brief highlights some of the different approaches states have taken to adopt the Medicaid expansion. Each state’s circumstances are unique, and the actions taken by one state may not apply to another state’s circumstances.

  • Among People Ineligible for Subsidies, Middle-Class Older Adults Face the Least Affordable ACA Premiums, Especially Those Living in Rural Areas Where Premiums Are Highest

    News Release

    A new KFF analysis finds that Affordable Care Act marketplace premiums are least affordable for older adults who earn too much to qualify for federal subsidies, especially those living in rural areas where premiums are highest. The analysis of the lowest-cost 2019 ACA marketplace plans across U.S. counties finds that older adults not eligible for subsidies living in 28 rural Nebraska counties face the least affordable ACA premiums as a share of income. A 60-year-old…