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
Potential Costs and Impact of Health Provisions in the Build Back Better Act
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
How Marketplace Costs and Premiums will Change if Rescue Plan Subsidies Expire
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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Renewals in Medicaid and CHIP: Implementation of Streamlined ACA Policies and the Potential Role of Managed Care Plans
This brief reviews the new renewal requirements for Medicaid and CHIP that are designed to maintain continuity of coverage for eligible individuals. It provides an overview of state implementation of the new renewal policies and considers the potential role managed care plans can play in supporting renewals. Key findings include: some aspects of the simplified renewal policies have not yet been fully implemented due to a range of challenges; some states, including Washington and Rhode Island, have successfully implemented the new policies and achieved high retention rates with more than nine in ten enrollees successfully renewed; and, managed care plans can support renewals by reminding members to renew and providing direct assistance with the renewal process; however, plans identified challenges to supporting renewal.
Issue Brief Read More What a Break in the Obamacare Battles Could Bring
Following the Supreme Court’s King v. Burwell decision, the Affordable Care Act could use a break from the intense political heat, though it may not get a long one as the 2016 election season heats up and presidential candidates play to their bases on health care, writes Drew Altman in his latest column for The Wall Street Journal’s Think Tank.
Perspective Read More At CMS, the Mission Is Broader Than Medicare and Medicaid
In his latest column for The Wall Street Journal’s Think Tank, Drew Altman discusses whether the Centers for Medicare and Medicaid Services’ broad new responsibilities implementing the Affordable Care Act and a more proactive approach to Medicare payment signals that it’s time for (another) name change.
Perspective Read More New Analysis Shows States with Medicaid Expansion Experienced Declines in Uninsured Hospital Discharges
Expanded health insurance coverage through the Affordable Care Act (ACA) is having a major impact on hospital payer mix across the country. Similar to other reports recently released, new data examining hospital discharges in 16 states with data through the second quarter in 2014 show increases in Medicaid and declines in uninsured or self-pay discharges in states that implemented the Medicaid expansion. These trends hold true for all hospital discharges as well as for specific services such as mental health or asthma. This information adds to a growing body of evidence indicating that coverage expansions are affecting providers and may lead to decreases in uncompensated care for the uninsured.
Issue Brief Read More Repayments and Refunds: Estimating the Effects of 2014 Premium Tax Credit Reconciliation
This analysis estimates the range of repayment or refund amounts of the advanced premium tax credits issued to enrollees who experience income volatility between the time of enrollment and tax credit reconciliation. Using a simulation model among all households eligible for advance payments of the premium tax credits under the Affordable Care Act, it estimates that half would owe a repayment while 45 percent would be issued a refund of some or all of premium subsidies received.
Issue Brief Read More Surprise Medical Bills
This brief explores the problem of “surprise medical bills” — charges arising when an insured individual inadvertently receives care from an out-of-network provider. It reviews studies on the extent of the issue, including Kaiser Family Foundation polling data, and outlines state and federal policy responses, including rules and proposed rules for Medicare and plans in Affordable Care Act marketplaces.
Issue Brief Read More Medicare Advantage Hospital Networks: How Much Do They Vary?
This report takes an in-depth look at Medicare Advantage plans’ hospital networks. The analysis draws upon data from 409 Medicare Advantage plans serving beneficiaries in 20 diverse counties that together accounted for about one in seven (14%) Medicare Advantage enrollees nationwide in 2015. The report examines the size and composition of plans’ hospital networks, the variation across counties, the inclusion of Academic Medical Centers and NCI-Designated Cancer Centers, and the relationship between network size and other plan features, including premiums, quality star ratings, per capita Medicare spending, parent organization, and plan tax status.
Report Read More Marketplace Health Plan Options for People with HIV Under the ACA: An Approach to More Comprehensive Cost Assessment
Based on an analysis of 300 possible scenarios, this brief estimates costs HIV positive individuals might expect to face when enrolled in marketplace health plans and describes the characteristics of plans that might offer the greatest value.
Issue Brief Read More How has the ACA Medicaid Expansion Affected Providers Serving the Homeless Population: Analysis of Coverage, Revenues, and Costs
To further understand how the first full year of Medicaid expansion has affected patients who are homeless and the providers who care for them, this analysis uses data from the Uniform Data System (UDS) for health centers to examine changes in insurance coverage, revenues and costs among Health Care for the Homeless (HCH) projects serving the homeless population.
Issue Brief Read More Two Substantive Sides to Debate Over Obamacare’s ‘Cadillac Tax’
In this column for The Wall Street Journal’s Think Tank, Drew Altman says debate about whether to keep or repeal the Cadillac tax is more than a debate between sound policy and good politics, there are strong substantive arguments on both sides.
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