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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Recent and Anticipated Actions to Reverse Trump Administration Section 1557 Non-Discrimination Rules
The Biden Administration has started taking steps to reverse Trump Administration policy and regulations that significantly narrowed the implementation and administrative enforcement of Section 1557, the Affordable Care Act’s nondiscrimination provision, particularly as the regulations apply to gender identity and sexual orientation. In addition, several lawsuits challenging the regulations, which…
Issue Brief Read MoreMedicaid Coverage of Family Planning Benefits: Results from a State Survey
This survey of states’ Medicaid family planning policies under fee-for-service finds wide coverage of most prescription contraceptives among 40 states and the District of Columbia (DC), but variable coverage of emergency contraceptives and other family planning-related services. It is the first published report on state coverage of family planning benefits since the passage of the Affordable Care Act (ACA).
Report Read MoreHow Affordability of Health Care Varies by Income among People with Employer Coverage
This analysis looks at the share of working families’ income that is spent on premiums, deductibles and other cost-sharing for employer-sponsored care. It shows that lower-income families spend a greater share of their income on health costs than those with higher incomes.
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