Right, that's what I thought. But my timecard shows both domestic and international taxable and non-taxable per diem for a continuous 6 day trip. Before I go complaining to the company that they did it wrong, I want to make sure I understand it correctly. Hence why I looked up the Pub 463, which seems to say that ALL our per diem is taxable. So...that's why I'm confused and asking if anyone has a source for what you just said.