-9- an additional extension until October 15, 1998, to file that return, and they did so in a timely fashion. See sec. 7502. Respondent has no record of the additional extension, and petitioners’ evidence on the point is less than compelling. Respondent’s imposition of the section 6651(a)(1) addition to tax is sustained, but in an amount that takes into account the August 15, 1998, extended due date of petitioners’ 1997 return. Respondent also imposed a section 6662(a) penalty on the underpayment of tax required to be shown on petitioners’ 1997 return. In addition to other reasons, if any portion of an underpayment of tax required to be shown on a taxpayer’s return is due to negligence, then the section 6662(a) penalty is applicable. The many errors and irregularities admitted to by petitioners with respect to their 1997 return make it clear that the imposition of the section 6662(a) penalty is appropriate with respect to the entire underpayment of tax, which in this case is computed in the same manner as the deficiency. See sec. 6664(a). To reflect the foregoing, Decision will be entered under Rule 155.Page: Previous 1 2 3 4 5 6 7 8 9 10Last modified: November 10, 2007