Social Security (FICA) tax withholding depends on whether you are a resident or nonresident for tax purposes. If you are a nonresident F-1 or J-1student or nonresident J-1 scholar, you do not have to pay FICA. It is also important to note that if you are a resident F-1 or J-1 student but are working on campus, you do not have to pay the FICA tax. However, if you work without authorization, FICA should be withheld from your paycheck.

我J-1第二年，不幸被扣了一些 tax withholding，我用学校国际学生办公室提供的软件已经做好了联邦税，w-2 中联邦扣的税应该全部返还给我，但Social Security (FICA) tax withholding也应该退还给我的，我该填什么表，去那里要呢？ 多谢，多谢！