self employment tax 请教

来源: 于 2015-03-30 11:13:59 [旧帖] [给我悄悄话] 本文已被阅读：次
查了不少网上的东东，越来越蒙：
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!