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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Affordability in the ACA Marketplace Under a Proposal Like Joe Biden’s Health Plan

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.

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Effects of the ACA Medicaid Expansion on Racial Disparities in Health and Health Care

This issue brief examines how the ACA Medicaid expansion has affected racial disparities in health coverage, access to care, health outcomes, and economic outcomes.

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Loss of the Affordable Care Act Would Widen Racial Disparities in Health Coverage

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.

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Medicaid Covers People with Pre-Existing Conditions, Too

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.

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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…

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Affordable Care Act

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…

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Explaining Health Care Reform: Questions About Health Insurance Subsidies

This brief provides an overview of the financial assistance provided under the ACA for people purchasing coverage on their own through health insurance Marketplaces (also called exchanges).

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Preguntas frecuentes: mercado de seguros de salud y ACA

Encuentre respuestas a las preguntas más comunes sobre seguros médicos incluyendo: Obamacare; el mercado de seguros; ayuda para pagar las primas de los seguros de salud; salud de las mujeres y de los inmigrantes.

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For ACA Enrollees, How Much Premiums Rise Next Year is Mostly up to Congress

Most customers with coverage through Affordable Care Act’s marketplaces will face big premium increases next year if Congress doesn’t extend the temporary enhanced tax credits included in the American Rescue Plan Act (ARPA) of 2021. If the outcome isn’t clear by summer, fall open enrollment could be a mess.

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Private Insurers Expect to Pay $1 Billion in Rebates to Consumers This Year for Setting Premiums Too High Relative to Medical Costs

Private insurance companies are expecting to pay out $1 billion in rebates to consumers this fall under an Affordable Care Act provision that requires insurers to spend the bulk of customers’ premium payments on care, a new KFF analysis finds. Rebates are based on insurers’ experiences over the previous three…

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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.