-22- Commissioner, 121 T.C. 273, 275 (2003). In fact, we find from the record that petitioners did not cooperate with such reasonable requests by respondent during the course of the audit. We hold that petitioners bear the burden of proof. B. Unreported Income Gross income includes all income from whatever source derived, sec. 61(a), and taxpayers are required to keep books and records sufficient to establish their Federal income tax liability, see sec. 6001; see also sec. 1.6001-1(b), Income Tax Regs. Where taxpayers have not maintained adequate business records to establish such liability, the Commissioner may reconstruct income by any method that the Commissioner believes reflects income clearly. See sec. 446(b); Parks v. Commissioner, 94 T.C. 654, 658 (1990). The Commissioner’s method need not be exact; however, it must be reasonable. See Holland v. United States, 348 U.S. 121 (1954). The bank deposits method for computing unreported income has long been sanctioned by the judiciary. See Factor v. Commissioner, 281 F.2d 100, 116 (9th Cir. 1960), affg. T.C. Memo. 1958-94; DiLeo v. Commissioner, 96 T.C. 858, 867 (1991), affd. 959 F.2d 16 (2d Cir. 1992). Bank deposits are prima facie evidence of income. See Tokarski v. Commissioner, 87 T.C. 74, 77 (1986). Where an individual taxpayer has failed to maintain adequate records as to the amount and source of his or her incomePage: Previous 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 NextLast modified: November 10, 2007