no federal income tax at all according to the GAO http://www.gao.gov/products/GAO-16-363 no federal income tax at all a 2016 analysis claims a study is about 14% according to the GAO Government Accountability Office according to the Government Accountability Office. widely reported http://www.gao.gov/products/GAO-16-363 http://www.gao.gov/products/GAO-16-363 GAO is about 14% 2016 study http://www.gao.gov/products/GAO-16-363 http://www.gao.gov/products/GAO-16-363 just a few large corporations pay the highest rate encontró encontró according Corporate Income Tax on the other hand http://www.gao.gov/products/GAO-16-363 GAO report Government Accountability Office (GAO) study Government Accountability Office (GAO) study no federal tax income liability Government Accountability Office at least two-thirds no federal taxes businesses pay a lot less than that widely reported Government Accountability Office effective tax rate is much lower less than half the official rate Government Accounting Office Government Accountability Office Government Accountability Office http://www.gao.gov/products/GAO-16-363 a somewhat disingenuous report http://www.gao.gov/products/GAO-16-363 said http://www.gao.gov/products/GAO-16-363 Government Accountability Office