Previously, Treasury Secretary Timothy Geithner's nomination was held up after it was revealed that he had failed to pay more than $34,000 in taxes.
The White House acknowledged Friday that "some tax issues" had emerged in connection with Daschle's nomination, but a spokesman said the president is confident the former Senate Democratic leader will be confirmed as the new health secretary.
Daschle filed amended tax returns for 2005, 2006 and 2007 to reflect additional income for consulting work, the use of a car service and reduced deductions for charitable contributions. He filed the returns after Obama announced he intended to nominate Daschle to head the Health and Human Services Department.
Most of the additional taxes resulted from unreported income from the use of a car service provided him by a close friend and business associate, Leo Hindery Jr. The unreported income for that service totaled more than $250,000 over three years.
Daschle also had unreported consulting income of $88,333, in 2007. He also had reductions to charitable contributions totaling about $15,000 over the three years covered, according to the Senate Finance Committee document. The document, marked "Confidential Draft," is a committee statement concerning Daschle's nomination.
The car service and the consulting income were received in connection with Daschle's business relationship with InterMedia Partners of Englewood, Colo. Daschle is a limited partner and chairman of its executive advisory board. He is also an independent consultant to InterMedia Advisors LLP of New York City.
Hindery founded InterMedia Partners, a private equity firm, in 1988. Daschle was paid $1 million annually for his services, the committee said. Daschle's 2007 tax return did not include one of his monthly payments of $88,333.
Beginning in 2005, Daschle was provided the use of a car and driver. Charges for the car and driver services were billed to InterMedia.
"Senator Daschle told staff that in June 2008, something made him think that the car service might be taxable and disclosed the arrangement to his accountant," said the committee statement. "Senator Daschle estimated that he used the car and driver 80 percent for personal use and 20 percent for business use. On January 2, 2009, Senator Daschle filed amended returns for 2005, 2006 and 2007 reporting the value of the car service as income."