There is much confusion about what constitutes foreign earned income with respect to the residency location, the location where the work or service is performed, and supply of the salary or fee any payment. Foreign residency or extended periods abroad for the tax payer is a qualification to avoid double taxation. Marginal tax rate is the rate of tax devote on your last (or highest) number of income. In the last described example, the individual is being taxed with a marginal tax rate of 25% w...