U.S. Corporate Tax Rate Plunges To 40 Year Low Of 12.1 Percent: pIn recent decades, corporate tax revenue has plunged, falling from about 6 percent of gross domestic product in the 1950′s to less than 2 percent today, due to a proliferation of corporate tax breaks and the use of offshore tax havens. According to the Congressional Budget Office, in fact, corporate tax receipts as a share [...]/p