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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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…Event Read More
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.Issue Brief Read More
Whether new to the market or reenrolling, everyone who wants 2021 coverage through the ACA Marketplace must sign up during Open Enrollment. Here, we detail ten ways in which the 2021 ACA open enrollment period differs from enrollment periods in past years.Blog Read More
We analyzed data from the 2018 National Health Interview Survey (NHIS) and 2018 Behavioral Risk Factor Surveillance System (BRFSS) to calculate prevalence rates of declinable health conditions. This data note looks at the share of adults ages 18-64 with declinable pre-existing conditions, with a particular focus on women.Issue Brief Read More
This data note presents the latest state-level data about nonelderly Medicaid adults who have disabilities but do not quality for SSI and considers the implications for their continued coverage if the ACA expansion is invalidated by the Court.Issue Brief Read More
A Conundrum: Majority of Republican Voters Want to Overturn ACA but Keep Protections for People with Pre-existing Conditions
This post examines the implications of Republican voters wanting the Supreme Court to overturn the entire Affordable Care Act, but not the law’s protections for people with pre-existing conditions.Blog Read More
This interactive map shows the status of all Section 1332 waivers requested by states. The Affordable Care Act (ACA) allows states to apply for innovation waivers to alter key ACA requirements in the individual and small group insurance markets and can be used to shore up fragile insurance markets, address unique state insurance market issues, or experiment with alternative models of providing coverage to state residents.Fact Sheet Read More
Updated Subsidy Calculator and 300+ FAQs Help Consumers Understand the ACA Marketplaces as Open Enrollment Begins
Ahead of the annual Affordable Care Act (ACA) open enrollment period, the time during which consumers can shop for health plans or renew existing coverage, KFF has updated its Health Insurance Marketplace Calculator and its searchable collection of more than 300 Frequently Asked Questions about open enrollment, the health insurance marketplaces and…News Release Read More
As the Trump administration reaches the end of its first term, this issue brief considers the landscape of approved and pending Section 1115 Medicaid demonstration waivers under this administration and how the November 2020 presidential election may impact this landscape.Issue Brief Read More
This brief examines what the loss of the Affordable Care Act (ACA) would mean for women’s coverage and access to health care.Issue Brief Read More