Treasury Secretary Timothy Geithner said Tuesday that if Congress cuts any of the Treasury’s budget it could endanger an economic recovery.

In prepared testimony to a Senate Appropriations subcommittee, Geithner listed efficiencies in Treasury’s spending performance and said the Internal Revenue Service was bringing in more and more revenue to Treasury’s coffers.

In fiscal 2010, which ended last Sept. 30, IRS enforcement squeezed $57.6 billion more in additional tax revenues, reflecting investment in new computers and other upgrades, he said.

"Any substantial cut to the IRS budget will hurt revenue collection and service to taxpayers, resulting in unanswered phone calls and letters," Geithner warned.

"Cuts to the remaining Treasury responsibilities would weaken our ability to support reforms that are critical to economic recovery and repair of the financial system," he added.