- 6 - partially due to the section 6654(a) addition to tax, their regular tax would not include that amount. Respondent has established that he summarily assessed and imposed a section 6654(a) addition to tax of $878.08 on the basis of petitioners’ 2004 filed return. Contrarily, petitioners have failed to show that $878.08 of their refund reduction was due to anything other than the addition to tax imposed by respondent.9 Accordingly, we find that respondent correctly omitted the imposed section 6654(a) addition to tax when calculating petitioners’ AMT liability. Therefore, we shall sustain respondent’s determination. Contentions we have not addressed are irrelevant, moot, or meritless. To reflect the foregoing, Decision will be entered under Rule 155. 9 While we lack jurisdiction to review respondent’s assessment of the sec. 6654(a) addition to tax, we note that petitioners’ argument that their overpayment of total estimated taxes could not generate an underpayment addition to tax is flawed. Very simply, taxpayers required to make estimated tax payments must pay four equal installments of their required annual tax payments, based on their total required payment. See sec. 6654(c). Although the total of petitioners’ installment payments may have equaled more than their total required amount, it is possible that one or more installments failed to meet the required amount owed for that quarter, thus, leading to the estimated tax addition to tax.Page: Previous 1 2 3 4 5 6 7Last modified: November 10, 2007