-9- the penalty. See Higbee v. Commissioner, 116 T.C. 438, 446-447 (2001). A taxpayer is liable for an accuracy-related penalty of 20 percent of any portion of an underpayment attributable to, among other things, a substantial understatement of income tax. There is a substantial understatement of income tax under section 6662(b)(2) if the amount of the understatement exceeds the greater of either 10 percent of the tax required to be shown on the return, or $5,000. Sec. 6662(a), (b)(1) and (2), (d)(1)(A); sec. 1.6662-4(a), Income Tax Regs. Petitioner reported he owed $8,169 for 2004 and respondent determined upon examination that petitioner owed $29,983.4 Thus, petitioner understated the tax on his return by $21,814, which is greater than 10 percent of the tax required to be shown on the return, or $5,000. Accordingly, respondent has met his burden of production with respect to petitioner’s substantial understatement of income tax for 2004. The accuracy-related penalty under section 6662(a) does not apply to any portion of an underpayment, however, if it is shown that there was reasonable cause for the taxpayer’s position and that the taxpayer acted in good faith with respect to that portion. Sec. 6664(c)(1); sec. 1.6664-4(b), Income Tax Regs. The determination of whether a taxpayer acted with reasonable cause and in good faith is made on a case-by-case basis, taking 4Respondent adjusted petitioner’s reported tax liability to $6,956 after examining the taxable income petitioner reported on the return.Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 NextLast modified: November 10, 2007