MUTUAL LIFE ASSURANCE CO. v. COMMR. OF INTERNAL REV., 27 T.C. 543 (1956) STATE MUTUAL LIFE ASSURANCE COMPANY OF WORCESTER, PETITIONER, v.COMMISSIONER OF INTERNAL REVENUE, RESPONDENT. Docket No. 55484.United States Tax Court. Filed December 18, 1956. Held, petitioner, a mutual life insurance company, is not entitled to deduct as investment expenses the portions of the […]