Be careful - tax free is not really tax free. I am an American working here. Read the tax laws and understand what they mean. Everything they give you, housing, transportation, school tuition for kids is considered income under US Tax law. Even though you can take advantage of the foreign income tax exclusion you will still have to pay income tax at higher rate on the balance. The rate for your taxes is for your adjusted income before the exclusions.

So if you get 60K for income, 48K per year for housing (which is about average for housing allowance here), 7K a year for a car, annual leave benefit of 4K, plus 16K for tuition your total package is 135K per year. The exclusions will not cover your entire package. Have a tax account review your package before you accept it just so you know what your tax burden will be because boy was I suprised. It was never explained to me in detail. I found out the hard way.