The reason is that it's not the money you actually want. You want the stuff that you can exchange money for -- you want food, shelter, entertainment etc. If you

The reason is that it's not the money you actually want. You want the stuff that you can exchange money for -- you want food, shelter, entertainment etc. If you had a choice, get a $10k pay rise, or $10k reimbursement for shopping, you'd obviously go with the second option, since the first one would only give you a certain percentage of that $10k. There's no reason for a company to pay tax on money it does not need. If they need some money for some current expenses, they can obtain it any time and spend it as an operating expense, which gets them no tax liability. Think of Apple, which has a basically untaxed huge wad of cash outside of the US -- they will keep it there for as long as they don't need more money in the US, to avoid the tax liability. They only keep in the US the money they need, hoping that future changes in tax law will let them save on bringing that pile of cash home.