self employment tax 請教

來源: 2015-03-30 11:13:59 [舊帖] [給我悄悄話] 本文已被閱讀:
查了不少網上的東東,越來越蒙:
is the 2nd job considered as self employed business? if yes, do I have to pay “self employment tax", i.e. FICA (social security tax + medicare tax) then? 

thanks a lot!