The Court describes the Section 6662A penalty as follows:
Section 6662A(a) imposes a penalty on any reportable transaction understatement. If a taxpayer fails to adequately disclose a reportable transaction giving rise to an understatement under section 6662A, the penalty is imposed at a rate of 30%, and there are no available defenses. Secs. 6662A(c), 6664(d)(2). However, if a taxpayer sufficiently discloses the details of the transaction, the penalty rate is 20% of the amount of the reportable transaction understatement. Sec. 6662A(a). In this latter instance, a taxpayer may be able to avoid the penalty under section 6662A if he or she shows reasonable cause and good faith, as well as that there is or was substantial authority for a position he or she took on a tax return, and the taxpayer reasonably believed that such treatment was more likely than not the proper treatment of the transaction in question. Sec. 6664(d)(1) and (2).The Court then describes the Eight Amendment's Excessive fines clause as follows (case citations omitted):
The Eighth Amendment to the United States Constitution provides: “Excessive bail shall not be required, nor excessive fines imposed, nor cruel and unusual punishments inflicted.” “The Excessive Fines Clause limits the government’s power to extract payments, whether in cash or in kind, ‘as punishment for some offense.’” Austin v. United States, 509 U.S. 602, 609-610 (1993) (emphasis in Austin) (quoting Browning-Ferris Indus. of Vt., Inc. v. Kelco Disposal, Inc., 492 U.S. 257, 265 (1989)).
In a case discussing application of the Double Jeopardy Clause to a State tax on possession of illegal drugs, the Supreme Court stated: “Criminal fines, civil penalties, civil forfeitures, and taxes all share certain features: They generate government revenues, impose fiscal burdens on individuals, and deter certain behavior. All of these sanctions are subject to constitutional constraints.” Dep’t of Revenue of Mont. v. Kurth Ranch, 511 U.S. 767, 778 (1994). At the same time, the Supreme Court recognized that taxes are typically motivated by revenue raising rather than punitive purposes. Id. at 779-780. “[N]either a high rate of taxation nor an obvious deterrent purpose automatically marks * * * [a] tax as a form of punishment.” Id. at 780. Nevertheless, “at some point, an exaction labeled as a tax approaches punishment, and our task is to determine * * * [when it] crosses that line.” Id.