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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Poll: Large Majorities Now Say They Wear Masks Regularly and Can Continue Social Distancing for At Least Six Months if Needed, though Republicans Remain Less Likely to Take Such Precautions

As winter sets in and COVID-19 cases and deaths reach records in most parts of the country, more Americans say they wear masks every time they leave home now (73%) than said so in May (52%), a new KFF Health Tracking Poll finds. A small minority (11%) say they wear…

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KFF Health Tracking Poll – December 2020: COVID-19 and Biden’s Health Care Agenda

This poll examines the public’s views on the coronavirus pandemic, its mental health impacts, experiences with social distancing, face mask wearing and views on business restrictions. This poll also examines the public’s views on the Affordable Care Act and President-elect Joe Biden’s health care policy proposals.

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Health Insurer Financial Performance Through September 2020

In this brief, we analyze third quarter data from 2018 to 2020 to examine how insurance markets performed financially through the end of September. Average margins remained relatively high compared to the same point in recent years, suggesting many insurers remained profitable even as non-COVID-related care returned in the summer and fall.

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How Has the Pandemic Affected Health Coverage in the U.S.?

Findings from administrative data suggest that the decline in enrollment among employer-sponsored insurance was far less than overall declines in employment as of September, and that many who did lose their job-based coverage likely found a safety net in coverage through Medicaid or the ACA marketplaces.

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Potential Health Policy Administrative Actions Under President Biden

This brief outlines the potential health policy actions that President Biden could take using executive authority, based on campaign pledges, and actions that would reverse or modify regulations or guidance issued by the Trump Administration.

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Millions of Uninsured Americans are Eligible for Free ACA Health Insurance

Amid the ongoing pandemic and high unemployment, this poste xamines how many uninsured people would be eligible for free health insurance during in a typical year, including those who qualify for Medicaid or for tax credits that cover the full cost of an ACA Marketplace plan.

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For 3rd Year in a Row, More Insurers are Entering the ACA Marketplaces, Creating More Options for Consumers

For the third straight year, more insurers are entering the Affordable Care Act’s marketplaces and expanding their service areas, creating more options for consumers seeking to buy their own insurance for 2021, a new KFF analysis finds.  The analysis finds 30 insurers joining the marketplace across 20 states, and another…

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Insurer Participation on the ACA Marketplaces, 2014-2021

For the third straight year, more insurers are entering the ACA Marketplaces or expanding their service area in 2021, creating more choices for consumers shopping for coverage during the 2021 open enrollment period.

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Web Briefing: The California v. Texas Supreme Court Case and Its Implications for the ACA

On Tuesday, Nov. 10, the Supreme Court will hear oral arguments on a legal challenge supported by the Trump administration that seeks to overturn the Affordable Care Act, an outcome that would have major effects throughout the health care system as the law’s provisions have affected nearly all Americans in…

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Key Facts about the Uninsured Population

This issue brief describes trends in health coverage prior to the pandemic, examines the characteristics of the uninsured population in 2019, and summarizes the access and financial implications of not having coverage.

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The Henry J. Kaiser Family Foundation Headquarters: 185 Berry St., Suite 2000, San Francisco, CA 94107 | Phone 650-854-9400
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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.