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Improper Payments Rose to an Estimated $186 Billion in FY25

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America250 & GAO: Informing Democracy Through Oversight

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When Members of Congress Need Answers to Complex Questions—They Come to GAO.

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OUR WORK YIELDED $62.7 BILLION IN FY 2025

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Recent Reports & Testimonies

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Military Personnel: DOD Should Improve Processes for Determining Cost-of-Living Allowances

GAO-26-107490
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Publicly Released:
A landscape view of a large white tank that says liquified hydrogen, connected to a rocket ship and launch tower, with other tall metal structures nearby.

Hydrogen Energy: Technologies Offer Potential Benefits but Face Challenges to Widespread Use

GAO-26-107932
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Publicly Released:
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IRS Financial Reporting: Improvements Needed in Information System and Other Controls

GAO-26-108898
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Publicly Released:
A small regional airplane on the tarmac with a pilot standing on steps leading to the open door for boarding.

Aviation Workforce: FAA Could Strengthen Regional Pilot Pipeline by Establishing Timelines for Training Initiatives

GAO-26-107856
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Publicly Released:
A U.S. Army Corps of Engineers official standing on a pathway in grass next to a home, holding up a handheld device.

Clean Water Act: Corps of Engineers Has Improved Oversight of Compensatory Mitigation, but Needs Implementation Guidance

GAO-26-106827
Published:
Publicly Released:
Aerial view of ongoing construction, including cranes and other machinery, at the International Labor Organization's headquarters in Geneva, Switzerland.

United Nations Renovations: Budget and Schedule Status of Selected Projects Are Mixed, and State Could Strengthen Oversight

GAO-26-107577
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Podcast

America’s Cybersecurity Risks and How GAO Is Helping to Address Them

On this special episode of the Watchdog Report podcast, we discuss America’s cybersecurity risks, as...

Preventing Fraud in Medicare
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Preventing Fraud in Medicare

Medicare is the biggest spending area for the U.S. government and the largest federal health program...

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Completing Software Update on CROWS Could Save Taxpayers $130 Million

The Government Accountability Office (GAO) reviewed Department of Defense (DOD) weapon system sustainment reports for fiscal years 2023 and 2024 and...

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Learn more about the role of the U.S. Comptroller General, how he or she is selected, and meet the Acting Comptroller General, Orice Williams Brown.

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