- 93 - understatements should be reduced under section 6661(b)(2)(B) or that respondent should have waived all or any part of the additions to tax under section 6661(c).23 We hold that NITCO is liable for additions to tax under section 6661 for 1987 and 1988 and that the Mussmans are liable for an addition to tax under section 6661 for 1988. Decisions will be entered under Rule 155. 23On brief, petitioners make the vague argument that they should not be held liable for the sec. 6661 additions to tax, because "the substantial understatement penalty is computational, and thus may not apply; if it does, the penalty is inappropriate because reasonable cause can be found for the understatement." However, "reasonable cause", standing alone, is not a sufficient basis for avoiding liability with respect to the sec. 6661 addition. See H. Conf. Rept. 97-760 at 575 (1982), 1982-2 C.B. 600, 650. At any rate, petitioners have failed to establish: (1) There was substantial authority for their return positions or reasonable disclosure on their returns; or (2) respondent should have waived all or part of the additions. Rule 142(a).Page: Previous 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93
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