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.
Issue Brief See More
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.
Blog See More
Refine Results
- view as grid
- view as list
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.
Issue Brief Read More
More Than 6 in 10 of the Remaining 27.4 Million Uninsured People in the U.S. are Eligible for Subsidized ACA Marketplace Coverage, Medicaid or the Children’s Health Insurance Program
Recent policy attention has focused on efforts to reduce the number of uninsured people in the U.S. by expanding eligibility for coverage assistance, including enhanced premium subsidies in the Affordable Care Act (ACA) Marketplace and filling the Medicaid “coverage gap.” A new KFF analysis shows that a majority of the…
News Release Read More
A Closer Look at the Remaining Uninsured Population Eligible for Medicaid and CHIP
This issue brief examines the characteristics of the remaining uninsured population who are eligible for Medicaid or CHIP.
Issue Brief Read More
Efforts to Increase Marketplace Enrollment During Open Enrollment Could Boost Medicaid Coverage, Too
As the ninth open enrollment period for the Health Insurance Marketplaces begins, enhanced Marketplace premium help along with increased funding for outreach and enrollment assistance mean there are more affordable coverage options for the millions of people who remain uninsured and more help available to connect those individuals to coverage.
Blog Read More
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).
Issue Brief Read More
Ten Changes to Watch in Open Enrollment 2022
Even as the ninth annual Open Enrollment period gets underway, the Affordable Care Act (ACA) Marketplaces continue to evolve and important changes are expected. This issue brief discusses what changes to watch out for in the coming enrollment period.
Issue Brief Read More
KFF Health Tracking Poll – October 2021: Home And Community Based Services And Seniors’ Health Care Needs
The October KFF Health Tracking Poll explores experiences with unpaid caregiving, and favorability of expansion of home and community based services (HCBS). It also examines experiences with difficulty affording and putting of health care services among seniors, favorability of the ACA and experience with determining eligibility for lower cost insurance as part of the COVID relief package.
Poll Finding Read More
The Inequity Of The Medicaid Coverage Gap and Why It Is Hard To Fix It
In this column for the JAMA Health Forum, Larry Levitt explores why the Medicaid “coverage gap” still exists in 12 states that have not expanded their Medicaid programs under the Affordable Care Act, why it matters, and why eliminating it could prove challenging.
Perspective Read More
Preventive Services Tracker
The Affordable Care Act (ACA) requires new private health insurance plans to cover many recommended preventive services without any patient cost-sharing. This tracker presents up-to-date information on the adult preventive services nongrandfathered private plans must cover, by condition, including a summary of the recommendation, the target population, the effective date of coverage, and related federal coverage clarifications.
Report Read More
Navigator Funding Restored in Federal Marketplace States for 2022
This data notereviews the data from CMS about its funding awards to Navigator programs serving consumers in the federal marketplace states during the 2022 open enrollment season, as well as funding trends over time and funding by state.
Issue Brief Read More