How to pay for Universal Health Care

NEW YORK (CNNMoney.com) -- Nearly two-thirds of U.S. companies and 68% of foreign corporations do not pay federal income taxes, according to a congressional report released Tuesday.

The Government Accountability Office (GAO) examined samples of corporate tax returns filed between 1998 and 2005. In that time period, an annual average of 1.3 million U.S. companies and 39,000 foreign companies doing business in the United States paid no income taxes - despite having a combined $2.5 trillion in revenue.

The study showed that 28% of foreign companies and 25% of U.S. corporations with more than $250 million in assets or $50 million in sales paid no federal income taxes in 2005. Those companies totaled a combined $372 billion in sales for the largest foreign companies and $1.1 trillion in revenue for the biggest U.S. companies.

The GAO report, which did not name any specific companies, said that some corporations reported zero income before deducting expenses while others said they had zero net income after deducting expenses. Either way, those companies reported no tax liability, the GAO said.