The audit will also review the past two years of the system’s transactions as it relates to Musk’s assertion of “alleged fraudulent payments,” according to a letter from Loren J. Sciurba, Treasury’s deputy inspector general, that was obtained by The Associated Press.

The audit marks part of the broader effort led by Democratic lawmakers and federal employee unions to provide transparency and accountability about DOGE’s activities under President Donald Trump’s Republican administration. The Musk team has pushed for access to the government’s computer systems and sought to remove tens of thousands of federal workers.

“We expect to begin our fieldwork immediately,” Sciurba wrote. “Given the breadth of this effort, the audit will likely not be completed until August; however, we recognize the danger that improper access or inadequate controls can pose to the integrity of sensitive payment systems. As such, if critical issues come to light before that time, we will issue interim updates and reports.”