In the case of an insurance company other than a life insurance company, the term “gross income” as used in this part means the gross income, as defined in section
832
(b)(1), increased by the amount of losses incurred, as defined in section
832
(b)(5), and the amount of expenses incurred, as defined in section
832
(b)(6), and decreased by the amount deductible under section
832
(c)(7) (relating to tax-free interest).