Of course he has not paid anything back, your President even said in mid campaign "I don't pay taxes". These are just a couple of reasons he is a Billionaire you pay his share of taxes and once he has OPM (0ther peoples money), no one gets a reasonable return on his investments. I am fortunate that I don't pay any taxes in the US or do I maybe the aluminum & steal tariffs is him taxing all of North America and soon the world.