Would Reducing the US Corporate Tax Rate Increase Employment in the United States? Martin Feldstein, 2016, Book Chapter. "Reducing the corporate tax rate and changing the rules for taxing the foreign earnings of US corporations would have many favorable effects, including an increase of employment in the United States.  First, a brief description of the current corporate tax arrangements. The federal government now imposes a statutory tax rate on corporate profits of 35 percent, the highest tax rate among all the industrial countries of the world. In addition, the individual states levy corporate tax rates that average 9 percent. Since that state tax is a deductible expense in calculating income subject to the federal corporate tax, the combined tax rate is approximately 40 percent." Link