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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Medicaid Eligibility, Enrollment Simplification, and Coordination under the Affordable Care Act: A Summary of CMS’s March 23, 2012 Final Rule
This brief provides a summary of the Centers for Medicare and Medicaid Services’ (CMS) March 23, 2012 final rule to implement the ACA provisions relating to Medicaid eligibility, enrollment simplification and coordination. The rule, which is effective Jan. 1, 2014, lays out procedures for states to implement the Medicaid expansion…Issue Brief Read More
We recently wrote about the different ways in which the Affordable Care Act (ACA) changes pathways to health insurance coverage for people with HIV, and chronicled these specifics, as well as several outstanding questions, in a policy brief. As we noted, among the many provisions of the ACA designed to…Fact Sheet Read More
The Cost and Coverage Implications of the ACA Medicaid Expansion: National and State-by-State Analysis
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…Report Read More
This brief explores key provisions of the Affordable Care Act (ACA) for people with HIV, and the opportunities and challenges for using the law to improve HIV care, particularly in light of the Supreme Court’s 2012 ruling on the law.Report Read More
Estimates are that there are approximately 630,000 people who are homeless on any given night in the U.S. — about two-thirds in shelters and one-third on the street or without real shelter. Several million people are estimated to experience homelessness over the course of a year. About two-thirds are individuals and the…Perspective Read More
There are multiple sources of insurance coverage and care for people with HIV in the United States. These include public programs, such as Medicaid and Medicare, and the Ryan White HIV/AIDS program, as well as private coverage through an employer or in the individual market. Medicaid, the nation’s principal safety-net…Perspective Read More
The Affordable Care Act (ACA) requires private health insurers to cover recommended preventive services such as colonoscopies without any patient cost-sharing. This report finds that confusion over whether colon cancer screenings are preventive care or treatment means patients sometimes receive unexpected bills for the procedure. The report examines cost-sharing practices for colorectal screenings through interviews with experts and officials in the medical and insurance industries.
This report was co-authored by The Kaiser Family Foundation, American Cancer Society, and National Colorectal Cancer Roundtable.Report Read More
On June 28, 2012, the U.S. Supreme Court upheld the constitutionality of the Affordable Care Act (ACA). A majority of the Court also found the ACA’s Medicaid expansion unconstitutionally coercive of states, while a different majority of the Court held that this issue was fully remedied by limiting the Health…Issue Brief Read More
On June 28, 2012, the U.S. Supreme Court issued its decision in the case challenging the Affordable Care Act (ACA). The Court upheld the constitutionality of the ACA’s individual mandate, which requires most people to maintain a minimum level of health insurance coverage beginning in 2014. A majority of the…Issue Brief Read More
A Historical Review of How States Have Responded to the Availability of Federal Funds for Health Coverage
This historical review finds that the availability of federal funds has served as an effective incentive for states to provide health coverage to meet the health and long-term care needs of their low-income residents despite state budget pressures. The brief examines the history of earlier experiences and provides important context for how states may respond as they weigh the costs and benefits of expanding their Medicaid programs in 2014 as called for under the Affordable Care Act.Issue Brief Read More