More than a decade after its enactment, tens of millions of people nationwide rely on coverage options created through the Affordable Care Act of 2010 (ACA). The law has survived multiple court challeges at the U.S. Supreme Court and repeated attempts by Republicans in Congress to repeal it. Subsequent legislation has scaled back some aspects of the law and expanded others, including by the COVID-19 relief bill, the American Response Plan Act of 2021. This page highlights relevant analysis about the ACA and proposed and enacted changes to it..

For information about ACA Marketplace Open Enrollment, including fact sheets and 300+ FAQs, visit our collection of resources on Understanding Health Insurance.

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Kaiser Poll: Early Reaction to Supreme Court Decision on ACA

Following last week’s Supreme Court’s decision upholding the heart of the Affordable Care Act (ACA), a majority of Americans (56 percent) now say they would like to see the law’s detractors stop their efforts to block its implementation and move on to other national problems. In the first of two…

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The Cost of Not Expanding Medicaid

As states wrap up legislative sessions and make decisions about whether to implement the Medicaid expansion included in the Affordable Care Act (ACA), this new analysis highlights the implications of these decisions for coverage, state budgets and providers. The decisions by as many as 27 states not to adopt the Medicaid expansion will leave a many more uninsured; these states would also forgo billions in federal funds.

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Helping People With HIV Navigate the Transition to ACA Coverage: Summary of a Roundtable Discussion

In March 2013, the Kaiser Family Foundation convened key HIV/AIDS stakeholders from a variety of backgrounds to explore opportunities for maximizing the beneficial impact of the Affordable Care Act (ACA) for people living with HIV and examine strategies to help them navigate the transition to new health coverage. This report summarizes the information shared and key issues discussed at the meeting.

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Getting into Gear for 2014: An Early Look at Branding and Marketing of New Health Insurance Marketplaces

Based on a review of publicly available materials as of September 2013, this brief provides an examination of the Marketplace branding strategies, websites, and marketing materials, providing insight into how consumers will be introduced to the Marketplaces and some of the key messages and approaches the Marketplaces will utilize to encourage individuals to enroll. As of September 2013, states and the federal government are on the eve of their October 1st launch of open enrollment for the new Health Insurance Marketplaces, where consumers will be able to shop for and purchase private coverage and potentially receive subsidies to lower the cost of that coverage. Achieving adequate enrollment through these Marketplaces will be important for fulfilling the Affordable Care Act’s (ACA’s) goal of reducing the nation’s uninsured rate. Moreover, sufficient enrollment, particularly among younger and healthy individuals, will be important for ensuring the financial sustainability of the Marketplaces over time. Recognizing the importance of enrollment, the federal government and the 17 states operating State-based Marketplaces have invested resources and conducted extensive consumer research to inform the branding and marketing campaigns for their Marketplaces.

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A Look at Section 1115 Medicaid Demonstration Waivers Under the ACA: A Focus on Childless Adults

This brief provides an overview of Section 1115 waiver authority, describes major provisions of waivers that extend coverage to childless adults, and identifies key issues and implications of these waivers looking forward to the Affordable Care Act and beyond.

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Obamacare and You: If You Have Medicare…

This short explainer highlights some of the key information for people with Medicare about how Affordable Care Act, also known as Obamacare, may affect them.

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Employer Responsibility Under the Affordable Care Act

The Affordable Care Act does not require businesses to provide health benefits to their workers, but applicable large employers may face penalties if they don’t make affordable coverage available. The employer shared responsibility provision of the Affordable Care Act penalizes employers who either do not offer coverage or do not offer coverage that meets minimum value and affordability standards. These penalties apply to firms with 50 or more full-time equivalent employees. This flowchart illustrates how those employer responsibilities work.

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Ensuring the Health Care Needs of Women: A Checklist for Health Exchanges

To inform the development of the state health insurance Exchanges under the Affordable Care Act, this checklist identifies key coverage, affordability and access issues that are important for women. Based on lessons learned from women’s health research and the Massachusetts experience, the checklist considers essential health benefits, implementation of no-cost preventive services including contraception, provider networks and affordability, outreach and enrollment efforts, and the importance of including gender and other demographic characteristics in data collection and reporting standards.

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JAMA Forum: ACA Implementation Starts to Get Real

Larry Levitt’s latest post on ACA implementation is now available on the JAMA Forum.

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Individual Mandate Penalty Calculator

The Individual Mandate Penalty Calculator estimates your penalty for going uninsured vs. how much you would pay for health insurance coverage on the Affordable Care Act (ACA) marketplaces.

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Filling the need for trusted information on national health issues, the Kaiser Family Foundation is a nonprofit organization based in San Francisco, California.