- 16 - tax credits arising out of the GD&L container leasing program and that they did not reasonably rely upon the advice of a competent adviser. It follows that petitioners did not make a bona fide and reasonable estimate of their tax liabilities by relying on that same adviser, who utilized the GD&L deductions and credits in estimating their 1984 Federal tax liability for purposes of obtaining a filing extension. Thus, we conclude that petitioners did not properly estimate their 1984 tax liability, the extension request was not valid, and the 1984 return was not timely filed. Therefore, we hold that petitioners are liable for the 1984 addition to tax for delinquency under section 6651(a)(1).8 Section 6661(a) Addition to Tax Section 6661(a) provides for an addition to tax equal to 25 percent of an underpayment attributable to a substantial understatement of tax. Section 6661(b)(1)(A) defines a substantial understatement as the greater of 10 percent of the tax required to be shown or $5,000. The amount of the understatement may be reduced by an amount for which there was substantial authority for the treatment adopted by the taxpayers on their return. Sec. 6661(b)(2)(B)(i). This reduction is not available in the case of a tax shelter unless, in addition, the 8 This addition to tax applies to the entire deficiency for 1984, Indeed petitioners have conceded that it applies to the portion of the deficiency in income taxes resulting from the disallowance of deductions and credits attributable to the Winthrop Trust.Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Next
Last modified: May 25, 2011