- 19 - OPINION As a general rule, with respect to the amount of the deficiency in issue, the taxpayer bears the burden of proof. Rule 142(a); INDOPCO, Inc. v. Commissioner, 503 U.S. 79, 84 (1992); Rockwell v. Commissioner, 512 F.2d 882, 886 (9th Cir. 1975), affg. T.C. Memo. 1972-133. That burden may shift to respondent if the taxpayer introduces credible evidence with respect to any factual issue relevant to ascertaining the taxpayer’s tax liability. Sec. 7491(a)(1). However, section 7491(a)(1) applies with respect to an issue only if the taxpayer has complied with the requirements under the Code to substantiate any item, has maintained all records required by the Code, and has cooperated with reasonable requests by the Commissioner for witnesses, information, documents, meetings, and interviews. Sec. 7491(a)(2)(A) and (B). For the reasons discussed below, petitioners’ evidence is unreliable, and their claims are unsubstantiated. They have not satisfied the conditions for shifting the burden of proof to respondent. As discussed below, however, respondent has the burden of proving fraud by clear and convincing evidence. Unreported Taxable Income Gross income is defined in section 61 as all income from whatever source derived, including, but not limited to, income derived from business. Sec. 61(a). Generally, in determiningPage: Previous 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 NextLast modified: November 10, 2007