Compensation can be subject to withholding of (federal income tax).
Wages can be subject to a withholding of (federal income taxes).
A (resident alien) may file (federal individual income tax return).
An (au pair) may wish a (withholding amount) of (federal income tax).
Pay can be subject to withholding of (federal income taxes).
Wages can be for purposes of withholding (federal income taxes).