ORIGINAL DISCIPLINARY PROCEEDING
BENTON, Judge.On July 28, 1992, Respondent Robert G. Duncan pleaded guilty to two misdemeanors of failure to pay federal income tax for 1988 and 1989. 26 U.S.C. § 7203. By the plea agreement, the United States dismissed the remaining two counts of failure-to-pay for 1986 and 1987, and agreed not to prosecute him for another tax offense. Respondent and his counsel agreed that if the case had reached trial, the United States “would have proven at least:”
That Duncan was from 1986 through 1989 engaged in the practice of law, and that he derived taxable income from that activity which he reported to the Internal Revenue Service, and on which he assessed himself the applicable tax on United States Individual Income Tax Returns, Forms 1040, but that he willfully failed to pay those taxes, although he possessed the funds to do so. Duncan and his counsel further and specifically agree that if this case had proceeded to trial, the United States would have proven that the tax due and owing for the calendar years 1988 and 1989 is $36,235.84 and $32,140.94, respectively.
Respondent was sentenced to three years probation; to reside in a halfway house for two months (followed by four months home confinement, all with work release); to perform 400 hours community service; to pay the Internal Revenue Service “all disposable income” and eventually $157,887.14. No imprisonment or fine was imposed; Respondent paid $50 costs.
Citing only Rule 5.20, the Chief Disciplinary Counsel filed an information with this Court, which issued an order to show cause. This Court has original jurisdiction. Rule 5.
I.
The Chief Disciplinary Counsel argues that Respondent is subject to discipline because failure to pay income tax is “a misdemeanor involving moral turpitude” within the meaning of Rule 5.20. The Disciplinary *444Counsel invokes six precedents that failure to file federal income tax returns—also violating 26 U.S.C. § 7203—constitutes moral turpitude. In re Burrus, 258 S.W.2d 625, 627 (Mo. banc 1953); In re Moon, 310 S.W.2d 935, 936 (Mo. banc 1958); In re McMullin, 370 S.W.2d 151, 155 (Mo. banc 1963); In re Lurkins, 374 S.W.2d 67, 68 (Mo. banc 1964); In re MacLeod, 479 S.W.2d 443, 445 (Mo. banc), cert. denied, 409 U.S. 979, 93 S.Ct. 312, 34 L.Ed.2d 243 (1972); In re Kueter, 501 S.W.2d 486, 487 (Mo. banc 1973).
Respondent counters that these precedents do not apply because he did file federal income tax returns, and because failure-to-pay differs from failure-to-file. Specifically, Respondent contends that failure-to-file may impute concealment, fraud, and thus moral turpitude, but failure-to-pay does not.
Respondent emphasizes that the Alabama Supreme Court held that failure to pay income taxes in violation of 26 U.S.C. § 7203 is not a crime of moral turpitude, negating any attorney discipline. Clark v. Alabama State Bar, 547 So.2d 461, 463 (Ala.1989). The Alabama court states that even failure-to-file does not necessarily involve moral turpitude. Id. at 463. The Clark decision thus contradicts the Missouri precedents, and the majority of states actually deciding the issue. See Annot., “Federal Income Tax Conviction as Involving Moral Turpitude Warranting Disciplinary Action Against Attorney,” 63 A.L.R.3d 476, 495-500 (1975), 66-67 (Supp.1992).
Respondent’s main argument— that failure-to-pay is less venal than failure-to-file — is refuted by the language of the federal statute, as oft interpreted by the United States Supreme Court. The mental state required by the statute for failure-to-pay is identical to that for failure-to-file: “willfully.” 26 U.S.C. § 7203; United States v. Bishop, 412 U.S. 346, 354-56, 93 S.Ct. 2008, 2014-15, 36 L.Ed.2d 941 (1973). Most crimes in the Internal Revenue Code — whether misdemeanor or felony — have this same mental state. Id. at 356, 93 S.Ct. at 2015. “Willfully” requires “more than a showing of careless disregard for the truth” and “means a voluntary, intentional violation of a known legal duty.” United States v. Pomponio, 429 U.S. 10, 12, 97 S.Ct. 22, 23, 50 L.Ed.2d 12 (1976).1 Moreover, a good faith misunderstanding of the law or a good faith belief that one is not violating the law — even if objectively unreasonable or irrational — negates willfulness in tax cases. Cheek v. United States, 498 U.S. 192, 111 S.Ct. 604, 611, 112 L.Ed.2d 617 (1991).
The parties present the issue as whether such willful failure to pay income tax is a crime of moral turpitude. This Court has long defined moral turpitude as “baseness, vileness, or depravity” or acts “contrary to justice, honesty, modesty or good morals.” In re Frick, 694 S.W.2d 473, 479 (Mo. banc 1985); In re Burrus, supra at 626; In re McNeese, 346 Mo. 425, 142 S.W.2d 33, 33-34 (1940); In re Wallace, 323 Mo. 203, 19 S.W.2d 625 (1929).
Willful failure to pay federal income taxes is a crime of moral turpitude. Respondent’s plea means he was more than careless, and voluntarily and intentionally violated the legal duty to pay taxes. Respondent “willfully failed to pay those [federal income] taxes, although he possessed the funds to do so.” It is dishonest not to pay taxes when Respondent knows he owes them and has the capacity to pay. It reflects adversely on Respondent’s trustworthiness that he owes “all disposable income” and (at least) $157,887.14 to the United States government, under these circumstances. Public confidence in the Bar cannot be maintained if attorneys may practice, with impunity, after tax convictions. “Almost without exception, the cases [across America] held or recognized that an attorney’s conviction of a federal *445income tax offense involved non-professional misconduct warranting the imposition of some type of disciplinary action.” Annot., “Federal Income Tax Conviction as Constituting Unprofessional Misconduct Warranting Disciplinary Action Against Attorney,” 63 A.L.R.3d 512, 514 (1975, Supp.1992).
This Court holds that a conviction of failure to pay income tax is a “misdemean- or involving moral turpitude” under Rule 5.20.
II.
“In cases of this nature, it is always a difficult problem to determine the extent to which an attorney should be disciplined.” In re Moon, supra at 938. Suspension is the consistent sanction for failure-to-file. In re Burrus, supra at 627; In re Moon, supra at 939; In re McMullin, supra at 156; In re Durkins, supra at 69; In re MacLeod, supra at 445; In re Kueter, supra at 487.
Respondent graduated law school with distinction, and has practiced for 33 years without prior discipline. Respondent has an excellent reputation as an attorney, having led local, state, and national bar organizations and having written and lectured widely, particularly on criminal law. Cf. In re Miller, 568 S.W.2d 246, 253 (Mo. banc 1978). Respondent, after 21 years of full-time practice, claims to have gone deep in debt as a result of business failure, a contemporaneous divorce, and various tax liens. Respondent apparently cooperated with federal agents in computing his delinquencies. Cf. In re Burrus, supra at 626.
In view of these facts, Respondent is hereby suspended indefinitely from the practice of law, with leave to apply for reinstatement six months after the date of the mandate in this case.
COVINGTON, HOLSTEIN, THOMAS and LIMBAUGH, JJ., concur. PRICE, J., concurs in part and dissents in part in separate opinion filed. ROBERTSON, C.J., dissents in separate opinion filed.. Respondent emphasizes Pomponio’s corollary point that ‘bad faith or evil intent” are not elements of willfulness in tax offenses; Respondent deduces that failure-to-pay is not an act of moral turpitude. Respondent’s point proves too much, because all tax offenses — failure-to-pay, failure-to-file, other misdemeanors, and felonies — have the same mental state. This Court’s precedents clearly hold tax offenses to be crimes of moral turpitude.