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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

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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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  • Pulling it Together: On Health Reform, Will All Roads Meet in the Middle?

    Perspective

    A few weeks ago a small group of upset single-payer advocates followed Senator Baucus into the parking garage of our D.C. building as he was arriving to do one of our health reform newsmaker breakfasts, cosponsored by Families USA and the National Federation of Independent Business. They were angry because they feel that single payer is not receiving enough attention in the current debate, and it is true that it is not getting a lot…

  • Health Reform: Implications for Women’s Access to Coverage and Care

    Issue Brief

    This issue brief, Health Reform: Implications for Women's Access to Coverage and Care, reviews how the Affordable Care Act is expected to affect access to care and affordability of health coverage for women. It also explains the provisions in the health reform law related to preventive screening services, reproductive health, maternity care and women on Medicare. The brief includes national and state-level estimates of the percentage of uninsured women ages 18-64 who are likely to…

  • Pulling It Together: The Repeal Trap?

    Perspective

    Almost a year into an often acrimonious health reform debate, we stand poised for near certain passage of historic health reform legislation. Yet, somewhat perplexingly, there's now talk about whether a law that has not even been enacted might actually be repealed and reporters have been calling asking what the chances of repeal may be. I have a very hard time imagining any scenario for repeal unfolding. Calls for repeal have much to do with…

  • Chronic Disease and Co-Morbidity Among Dual Eligibles: Implications for Patterns of Medicaid and Medicare Service Use and Spending

    Report

    The health reform law contains provisions that aim to improve the delivery and coordination of services for persons enrolled in both Medicaid and Medicare, known as the dual eligibles. This population includes individuals with some of the most severely disabling chronic conditions. While the higher costs associated with services to dual eligibles is well-known, information on how spending is distributed across these programs is less understood. This study uses linked Medicare and Medicaid data to…

  • A Challenge for States: Assuring Timely Access to Optimal Long-Term Services and Supports in the Community

    Issue Brief

    The Medicaid program is a major payer for long-term services and supports (LTSS) in the United States, accounting for 40 percent of total spending for long-term services and supports. The federal government has played an active role in sponsoring initiatives to promote a shift to community-based care; and evidence from several states suggests that providing care in the community can be less expensive than providing institutional care. The Affordable Care Act (ACA) provides incentives for…

  • Resources Examine Recession-Driven Record Medicaid Enrollment and Assess Medicaid Spending Growth

    Fact Sheet

    Three papers from the Foundation's Commission on Medicaid and the Uninsured examine Medicaid enrollment and spending during the recent recession. The analyses show Medicaid enrollment rose above 50 million people nationally for the first time in 2010, reflecting the program’s counter-cyclical role of helping people who become uninsured when the economy falters, with many turning to Medicaid after losing jobs and employer-based health insurance. Without access to Medicaid coverage, millions more people who suffered economic…

  • Uniform Coverage Summaries for Consumers

    Issue Brief

    This brief explains the proposed federal rule that requires private health plans to provide a short, easy-to-read uniform summary of benefits and coverage to all health insurance applicants and enrollees. The rule, which implements a provision in the Affordable Care Act (ACA), is intended to make it simpler for consumers to compare health plans before they enroll and understand their coverage once they are enrolled. Currently, consumers in employer-sponsored plans receive summaries of their benefits,…

  • Connecting Eligible Immigrant Families to Health Coverage and Care: Key Lessons from Outreach and Enrollment Workers

    Issue Brief

    Beginning in 2014, health coverage options will significantly expand under health reform through an expansion in Medicaid eligibility and by making tax credits available to help individuals purchase coverage through new Health Benefit Exchanges. Given their high uninsured rate and limited access to private and public coverage, one group who could significantly benefit from this coverage expansion is lawfully residing immigrant families. However, it will be important to address barriers eligible immigrant families often face…

  • The Fraying Link Between Work and Health Insurance: Trends in Employer-Sponsored Insurance for Employees, 2000-2007

    Report

    This analysis shows that employer-sponsored coverage began declining after 2000 due to an economic downturn that saw rising unemployment, declining family incomes and more workers moving into temporary work, part-time work and other employment arrangements where health benefits were not provided. Employer-sponsored coverage continued to decline after 2003 despite improvements in the economy and slower growth in health care costs. The decline in coverage was due both to falloffs in the share of employees with…

  • Insurance Coverage and Viral Suppression Among People with HIV in the United States, 2015-2018

    Feature

    Health insurance coverage and access to care improve health outcomes, including viral suppression, for people with HIV in the United States. Prior research has demonstrated that implementation of the Affordable Care Act (ACA) in 2014 increased coverage among people with HIV and that certain forms of coverage are positively correlated with sustained viral suppression. We provide a 2018 update, the latest nationally representative data in this area, as well as trends over time.