((a)) ** General definition** Except as otherwise provided in this subtitle, gross income means all income from whatever source derived, including (but not limited to) the following items:
((1)) Compensation for services, including fees, commissions, fringe benefits, and similar items;
((2)) Gross income derived from business;
((3)) Gains derived from dealings in property;
((4)) Interest;
((5)) Rents;
((6)) Royalties;
((7)) Dividends;
((8)) Annuities;
((9)) Income from life insurance and endowment contracts;
((10)) Pensions;
((11)) Income from discharge of indebtedness;
((12)) Distributive share of partnership gross income;
((13)) Income in respect of a decedent; and
((14)) Income from an interest in an estate or trust.
((b)) ** Cross references** For items specifically included in gross income, see part II (sec. 71 and following). For items specifically excluded from gross income, see part III (sec. 101 and following).