"Taxing those evil fat cat multinational corporations" is a popular theme amongst the William Jennings Bryan-esque populists that infest the grassroots of both major American political parties these days. Unfortunately for them, it's a completely bogus idea.
"Corporate taxes" are a myth and a joke. For every $1 demanded of a corporation, they take $0.50 from their employee's salaries and get the other $0.50 by jacking up the price of their goods/services.
You can't tax a corporation; it's merely an indirect way of extorting more money from the taxpayers.
(Example: The government decides that it will fund the "Diapers For Needy Babies" program by taxing I.N.C. Inc.'s baby diaper division $1,000 dollars per year, since it is an evil big corporation. Where does I.N.C. get this extra $1,000? By waving a magic wand? No, by raising the price of its diapers by $500 and by laying off $500 worth of employees. Now you have more needy babies, and more expensive diapers.
Does this generate a net good for society?)