Per SuperUser Rainman12:
Civilians do Not have all the same tax benefits as Military because their service is considered Voluntary. IRS Pub 3 specifically grants EIC benefits for Military only; Civilian DoD positions are covered by IRS Pub 54 and 516; Neither of the latter mention EIC for overseas positions. However, since such jobs normally have the same APO/FPO addresses as military use, it's hard to say how/when/if IRS would be able to discriminate unless W-2 EIN is a qualifier ...
