- 4 - We begin by noting that, as a general rule, the Commissioner's determinations are presumed correct, and the taxpayer bears the burden of proving otherwise. Rule 142(a); Welch v. Helvering, 290 U.S. 111, 115 (1933). Moreover, deductions are strictly a matter of legislative grace, and the taxpayer has the burden of establishing entitlement to any deduction claimed on the return. Deputy v. du Pont, 308 U.S. 488, 493 (1940); New Colonial Ice Co. v. Helvering, 292 U.S. 435, 440 (1934). The taxpayer's burden of establishing his entitlement to a deduction includes the burden of substantiation. Hradesky v. Commissioner, 65 T.C. 87, 90 (1975), affd. per curiam 540 F.2d 821 (5th Cir. 1976). The Court is not bound to accept unverified, undocumented testimony of the taxpayer. Id. Accordingly, section 6001 and the regulations promulgated thereunder require the taxpayer to maintain records sufficient to enable the Commissioner to determine the taxpayer's correct tax liability. Meneguzzo v. Commissioner, 43 T.C. 824, 831-832 (1965); sec. 1.6001-1(a), Income Tax Regs. As a general rule, the mere fact that a taxpayer cannot prove the precise amount of an otherwise deductible item is ordinarily not fatal because we may, if the trial record provides sufficient evidence, estimate the amount of the deductible expenses incurred. Cohan v. Commissioner, 39 F.2d 540 (2d Cir.Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
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