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.
Featured Affordable Care Act Resources
A summary of 10 of the major health coverage and financing provisions of the current Build Back Better Act, with discussion of the potential implications for people and the federal budget.
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Related Affordable Care Act Resources
- 5 Charts About Public Opinion on the Affordable Care Act
- A Closer Look at the Uninsured Marketplace Eligible Population Following the American Rescue Plan Act
- Eligibility for ACA Health Coverage Following Job Loss
- Pre-Existing Condition Prevalence for Individuals and Families
- Building on the Evidence Base: Studies on the Effects of Medicaid Expansion, February 2020 to March 2021
- FAQs: Health Insurance Marketplace and the ACA
- Explaining Health Care Reform: Questions About Health Insurance Subsidies
- Status of State Medicaid Expansion Decisions: Interactive Map
- Preventive Services Tracker
- Tracking Section 1332 State Innovation Waivers
In this Policy Watch we explore the potential impact of the expiration of the American Rescue Plan Act’s enhanced financial help and new eligibility for the Affordable Care Act’s health insurance Marketplace federal subsidies. While the COVID-19 relief legislation passed earlier this year provides greater subsidy assistance through 2022, Democrats in Congress are currently considering making the temporary federal help permanent or extending it as part of their planned budget reconciliation legislation.
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As Unemployment Skyrockets, KFF Estimates More than 20 Million People Losing Job-Based Health Coverage Will Become Eligible for ACA Coverage through Medicaid or Marketplace Tax Credits
Coverage Losses Will Affect At Least a Million Residents in Each of Eight States: California, Texas, Pennsylvania, New York, Georgia, Florida, Michigan and Ohio With more than 31 million workers filing unemployment claims between March 1 and May 2 as the coronavirus crisis hit the nation’s economy, a new KFF…News Release Read More
In this September 2020 post for The JAMA Health Forum, Larry Levitt highlights differences in the records and policy plans of President Donald Trump and former Vice President Joe Biden on key health care issues.Perspective Read More
This issue brief answers key questions about California v. Texas (known as Texas v. US in the lower courts), the case challenging the Affordable Care Act to be heard by the Supreme Court.Issue Brief Read More
This KFF analysis finds that expanding Affordable Care Act (ACA) premium subsidies like Democratic presidential nominee Joe Biden has proposed would lower the cost of Marketplace coverage for nearly all potential enrollees, including the uninsured and others currently priced out of the Marketplace. Biden’s plan would, however, increase federal spending, which we do not attempt to estimate here.Issue Brief Read More
This issue brief examines how the ACA Medicaid expansion has affected racial disparities in health coverage, access to care, health outcomes, and economic outcomes.Issue Brief Read More
In November, the Supreme Court is scheduled to hear arguments on a legal challenge that seeks to overturn the Affordable Care Act (ACA). This analysis shows that new coverage options under the ACA have contributed to large gains in coverage, particularly among people of color, helping to narrow longstanding racial disparities in health coverage.Blog Read More
In recent weeks, the possible overturning of the Affordable Care Act (ACA) in court and the upcoming election have focused attention on the issue of protections for people with pre-existing conditions. While the focus has been on the ACA’s private insurance protections, Medicaid also plays a significant role in covering people with pre-existing conditions.Blog Read More
Tracking Poll: A Large and Growing Majority, Including Republicans, Does Not Want the Supreme Court to Overturn the ACA’s Protections for People with Pre-Existing Conditions
As the Senate considers Judge Amy Coney Barrett’s nomination to the Supreme Court, the October KFF Health Tracking Poll finds a large majority (79%) of the public do not want the Court to overturn the Affordable Care Act’s protections for people with pre-existing medical conditions, up 17 percentage points since…News Release Read More
A Closer Look at the Uninsured Marketplace Eligible Population Following the American Rescue Plan Act
This analysis examine key demographic characteristics of the uninsured population eligible for subsidies to buy Marketplace coverage following the American Rescue Plan.Issue Brief Read More
The latest KFF Health Tracking Poll explores the public’s views on the U.S. role in distributing COVID vaccines to other countries, health care priorities for Congress, prescription drug regulations and price negotiations, and affordability changes in the COVID-19 relief bill.Poll Finding Read More