WASHINGTON - Two-thirds of U.S. corporations paid no federal income taxes between 1998 and 2005, according to a new report from Congress.
The study by the Government Accountability Office, expected to be released Tuesday, said about 68 percent of foreign companies doing business in the U.S. avoided corporate taxes over the same period.
Collectively, the companies reported trillions of dollars in sales, according to GAO's estimate.
"It's shameful that so many corporations make big profits and pay nothing to support our country," said Sen. Byron Dorgan, D-N.D., who asked for the GAO study with Sen. Carl Levin, D-Mich.
An outside tax expert, Chris Edwards of the libertarian Cato Institute in Washington, said increasing numbers of limited liability corporations and so-called "S" corporations pay taxes under individual tax codes.
"Half of all business income in the United States now ends up going through the individual tax code," Edwards said.
The GAO study did not investigate why corporations weren't paying federal income taxes or corporate taxes and it did not identify any corporations by name.