The IRS has no offices overseas. The U.S. Embassy in Jerusalem and the Embassy Branch Office in Tel Aviv do not employ IRS specialists and cannot answer specific tax questions.
The Internal Revenue Service reminds U.S. taxpayers living abroad, as well as other international taxpayers, that IRS.gov provides the best starting place for getting answers to their important tax questions. The website contains a wide variety of topics, including downloadable forms and publications.
See here for international taxpayer information from the IRS.
Overview of Federal Benefits and Obligations