If I am US citizen working abroad, and qualify as a bonafide resident abroad, I know I need to file form 2555 to claim foreign income exclusion. But I am also required to file 1040 to claim the exclusion. 1040 requires that W-2 be attached. However, I don't get w-2 from the foreign company with whom I work broad, though I get pay slips. So what happens if I don't have and don't attach W-2 to my 1040?