The corporate tax rate in the U.S. is 35%, but there aren't many companies that end up paying that amount. According to a study by the Citizens for Tax Justice and the Institute on Taxation and Economic Policy, the average tax rate of 280 S&P 500 companies invest-gated was 18.5% between 2008 and 2010.
Over 70 companies paid no taxes at all.
Read more: http://www.businessinsider.com/these-are-the-30-american-companies-that-paid-less-than-zero-income-tax-from-2008-2010-2011-11##ixzz1cvwdPq5Z
