Gavin Kliger has been helping the new Department of Government Efficiency cut spending as an employee of the Office of Personnel Management and was recently granted access to IRS

(Reuters) - The U.S. Internal Revenue Service has blocked a key aide to tech billionaire Elon Musk from accessing individual taxpayer returns or other personal information as part of a deal signed between the tax-collecting agency and the Trump administration.

The Trump White House and Treasury Department officials have reached an agreement to limit DOGE's access to IRS data, citing privacy concerns.