File Form 673 with your U.S. employer to claim an exemption from U.S. income tax withholding on wages earned abroad to the extent of the foreign earned income exclusion and foreign housing exclusion. Current revision Form 673 PDF Recent developments None at this time. Other items you may find useful All Revisions for Form 673 About Publication 54, Tax Guide for U.S. Citizens and Resident Aliens Abroad Other Current Products Related About Form 2555, Foreign Earned Income