For the determination of gross income and adjusted gross income see sections 61 and 62, and the regulations thereunder, or, when applicable, the corresponding provisions as made applicable in Guam by the Guam Territorial income tax (48 U.S.C. 1421i ). For purposes of this paragraph, gross income consisting of compensation for military or naval service shall be taken into account notwithstanding section 514 of the Soldiers' and Sailors' Civil Relief Act of 1940 (50 App. U.S.C. 574). However, see paragraph (e) of this section.
26 C.F.R. §301.7654-1