opinion: UNITED STATES v. GENERES et vir
  No. 70-28.
  Argued November 8, 1971
  Decided February 23, 1972
  BlackmuN, J., delivered the opinion of the Court, in which Burger, C. J., and Stewart and Marshall, JJ., joined and in which (as to Parts I, II, and III) BreNNAN and White, JJ., joined. Marshall, J., filed a concurring opinion, -post, p. 107. White, J., filed a separate opinion, in which Brennan, J., joined, post, p. 112. Douglas, J., filed a dissenting opinion, post, p. 113. Powell and Rehnquist, JJ., took no part in the consideration or decision of the case.
  Matthew J. Zinn argued the cause for the United States. With him on the brief were Solicitor General Griswold, Assistant Attorney General Walters, and Ernest J. Brown.
  Max Nathan, Jr., argued the cause and filed a brief for respondents.
  Mr. Justice Blackmun
  delivered the opinion of the Court.
  A debt a closely held corporation owed to an indemnifying shareholder-employee became worthless in 1962. The issue in this federal income tax refund suit is whether, for the shareholder-employee, that worthless obligation was a business or a nonbusiness bad debt within the meaning and reach of §§ 166 (a) and (d) of the Internal Revenue Code of 1954, as amended, 26 U. S. C. §§ 166 (a) and (d), and of the implementing Regulations § 1.166-5.
  The issue’s resolution is important for the taxpayer. If the obligation was a business debt, he may use it to offset ordinary income and for carryback purposes under § 172 of the Code, 26 U. S. C. § 172. On the other hand, if the obligation is a nonbusiness debt, it is to be treated as a short-term capital loss subject to the restrictions imposed on such losses by §166 (d)(1)(B) and §§ 1211 and 1212, and its use for carryback purposes is restricted by § 172 (d)(4). The debt is one or the other in its entirety, for the Code does not provide for its allocation in part to business and in part to nonbusiness.
  In determining whether a bad debt is a business or a nonbusiness obligation, the Regulations focus on the relation the loss bears to the taxpayer’s business. If, at the time of worthlessness, that relation is a “proximate” one, the debt qualifies as a business bad debt and the aforementioned desirable tax consequences then ensue.
  The present case turns on the proper measure of the required proximate relation. Does this necessitate a “dominant” business motivation on the part of the taxpayer or is a “significant” motivation sufficient?
  Tax in an amount somewhat in excess of $40,000 is involved. The taxpayer, Allen H. Generes, prevailed in a jury trial in the District Court. See 67-2 U. S. T. C. ¶9754 (ED La.). On the Government’s appeal, the Fifth Circuit affirmed by a divided vote. 427 F. 2d 279 (CA5 1970). Certiorari was granted, 401 U. S. 972 (1971), to resolve a conflict among the circuits.
  I
  The taxpayer as a young man in 1909 began work in the construction business. His son-in-law, William F. Kelly, later engaged independently in similar work. During World War II the two men formed a partnership in which their participation was equal. The enterprise proved successful. In 1954 Kelly-Generes Construction Co., Inc., was organized as the corporate successor to the partnership. It engaged in the heavy-construction business, primarily on public works projects.
  The taxpayer and Kelly each owned 44% of the corporation’s outstanding capital stock. The taxpayer’s original investment in his shares was $38,900. The remaining 12% of the stock was owned by a son of the taxpayer and by another son-in-law. Mr. Generes was president of the corporation and received from it an annual salary of $12,000. Mr. Kelly was executive vice-president and received an annual salary of $15,000.
  The taxpayer and Mr. Kelly performed different services for the corporation. Kelly worked full time in the field and was in charge of the day-to-day construction operations. Generes, on the other hand, devoted no more than six to eight hours a week to the enterprise. He reviewed bids and jobs, made cost estimates, sought and obtained bank financing, and assisted in securing the bid and performance bonds that are an essential part of the public-project construction business. Mr. Generes, in addition to being president of the corporation, held a full-time position as president of a savings and loan association he had founded in 1937. He received from the association an annual salary of $19,000. The taxpayer also had other sources of income. His gross income averaged about $40,000 a year during 1959-1962.
  Taxpayer Generes from time to time advanced personal funds to the corporation to enable it to complete construction jobs. He also guaranteed loans made to the corporation by banks for the purchase of construction machinery and other equipment. In addition, his presence with respect to the bid and performance bonds is of particular significance. Most of these were obtained from Maryland Casualty Co. That underwriter required the taxpayer and Kelly to sign an indemnity agreement for each bond it issued for the corporation. In 1958, however, in order to eliminate the need for individual indemnity contracts, taxpayer and Kelly signed a blanket agreement with Maryland whereby they agreed to indemnify it, up to a designated amount, for any loss it suffered as surety for the corporation. Maryland then increased its line of surety credit to $2,000,000. The corporation had over $14,000,000 gross business for the period 1954 through 1962.
  In 1962 the corporation seriously underbid two projects and defaulted in its performance of the project contracts. It proved necessary for Maryland to complete the work. Maryland then sought indemnity from Generes and Kelly. The taxpayer indemnified Maryland to the extent of $162,104.57. In the same year he also loaned $158,814.49 to the corporation to assist it in its financial difficulties. The corporation subsequently went into receivership and the taxpayer was unable to obtain reimbursement from it.
  In his federal income tax return for 1962 the taxpayer took his loss on his direct loans to the corporation as a nonbusiness bad debt. He claimed the indemnification loss as a business bad debt and deducted it against ordinary income. Later he filed claims for refund for 1959-1961, asserting net operating loss carrybacks under § 172 to those years for the portion, unused in 1962, of the claimed business bad debt deduction.
  In due course the claims were made the subject of the jury trial refund suit in the United States District Court for the Eastern District of Louisiana. At the trial Mr. Generes testified that his sole motive in signing the indemnity agreement was to protect his $12,000-a-year employment with the corporation. The jury, by special interrogatory, was asked to determine whether taxpayer’s signing of the indemnity agreement with Maryland “was proximately related to his trade or business of being an employee” of the corporation. The District Court charged the jury, over the Government’s objection, that significant motivation satisfies the Regulations’ requirement of proximate relationship. The court refused the Government’s request for an instruction that the applicable standard was that of dominant rather than significant motivation.
  After twice returning to the court for clarification of the instruction given, the jury found that the taxpayer’s signing of the indemnity agreement was proximately related to his trade or business of being an employee of the corporation. Judgment on this verdict was then entered for the taxpayer.
  The Fifth Circuit majority approved the significant-motivation standard so specified and agreed with a Second Circuit majority in Weddle v. Commissioner, 325 F. 2d 849, 851 (1963), in finding comfort for so doing in the tort law’s concept of proximate cause. Judge Simpson dissented. 427 F. 2d, at 284. He agreed with the holding of the Seventh Circuit in Niblock v. Commissioner, 417 F. 2d 1185 (1969), and with Chief Judge Lumbard, separately concurring in Weddle, 325 F. 2d, at 852, that dominant and primary motivation is the standard to be applied.
  II
  A. The fact responsible for the litigation is the taxpayer’s dual status relative to the corporation. Generes was both a shareholder and an employee. These interests are not the same, and their differences occasion different tax consequences. In tax jargon, Generes’ status as a shareholder was a nonbusiness interest. It was capital in nature and it was composed initially of tax-paid dollars. Its rewards were expectative and would flow, not from personal effort, but from investment earnings and appreciation. On the other hand, Generes’ status as an employee was a business interest. Its nature centered in personal effort and labor, and salary for that endeavor would be received. The salary would consist of pre-tax dollars.
  Thus, for tax purposes it becomes important and, indeed, necessary to determine the character of the debt that went bad and became uncollectible. Did the debt center on the taxpayer’s business interest in the corporation or on his nonbusiness interest? If it was the former, the taxpayer deserves to prevail here. Trent v. Commissioner, 291 F. 2d 669 (CA2 1961); Jaffe v. Commissioner, T. C. Memo ¶ 67,215; Estate of Saperstein v. Commissioner, T. C. Memo ¶ 70,209; Faucher v. Commissioner, T. C. Memo ¶ 70,217; Rosati v. Commissioner, T. C. Memo ¶ 70,343; Rev. Rul. 71-561, 1971-50 Int. Rev. Bull. 13.
  B. Although arising in somewhat different contexts, two tax cases decided by the Court in recent years merit initial mention. In each of these cases a major shareholder paid out money to or on behalf of his corporation and then was unable to obtain reimbursement from it. In each he claimed a deduction assertable against ordinary income. In each he was unsuccessful in this quest:
  1. In Putnam v. Commissioner, 352 U. S. 82 (1956), the taxpayer was a practicing lawyer who had guaranteed obligations of a labor newspaper corporation in which he owned stock. He claimed his loss as fully deductible in 1948 under § 23 (e) (2) of the 1939 Code. The standard prescribed by that statute was incurrence of the loss “in any transaction entered into for profit, though not connected with the trade or business.” The Court rejected this approach and held that the loss was a nonbusiness bad debt subject to short-term capital loss treatment under §23(k)(4). The loss was deductible as a bad debt or not at all. See Rev. Rul. 60-48, 1960-1 Cum. Bull. 112.
  2. In Whipple v. Commissioner, 373 U. S. 193 (1963), the taxpayer had provided organizational, promotional, and managerial services to a corporation in which he owned approximately an 80% stock interest. He claimed that this constituted a trade or business and, hence, that debts owing him by the corporation were business bad debts when they became worthless in 1953. The Court also rejected that contention and held that Whipple’s investing was not a trade or business, that is, that “[djevoting one’s time and energies to the affairs of a corporation is not of itself, and without more, a trade or business of the person so engaged.” 373 U. S., at 202. The rationale was that a contrary conclusion would be inconsistent with the principle that a corporation has a personality separate from its shareholders and that its business is not necessarily their business. The Court indicated its approval of the Regulations’ proximate-relation test:
  “Moreover, there is no proof (which might be difficult to furnish where the taxpayer is the sole or dominant stockholder) that the loan was necessary to keep his job or was otherwise proximately related to maintaining his trade or business as an employee. Compare Trent v. Commissioner, [291 F. 2d 669 (CA2 1961)].” 373 U. S., at 204.
  The Court also carefully noted the distinction between the business and the nonbusiness bad debt for one who is both an employee and a shareholder.
  These two eases approach, but do not govern, the present one. They indicate, however, a cautious and not a free-wheeling approach to the business bad debt. Obviously, taxpayer Generes endeavored to frame his case to bring it within the area indicated in the above quotation from Whipple v. Commissioner.
  Ill
  We conclude that in determining whether a bad debt has a “proximate” relation to the taxpayer’s trade or business, as the Regulations specify, and thus qualifies as a business bad debt, the proper measure is that of dominant motivation, and that only significant motivation is not sufficient. We reach this conclusion for a number of reasons:
  A. The Code itself carefully distinguishes between business and nonbusiness items. It does so, for example, in § 165 with respect to losses, in § 166 with respect to bad debts, and in § 162 with respect to expenses. It gives particular tax benefits to business losses, business bad debts, and business expenses, and gives lesser benefits, or none at all, to nonbusiness losses, nonbusiness bad debts, and nonbusiness expenses. It does this despite the fact that the latter are just as adverse in financial consequence to the taxpayer as are the former. But this distinction has been a policy of the income tax structure ever since the Revenue Act of 1916, § 5 (a), 39 Stat. 759, provided differently for trade or business losses than it did for losses sustained in another transaction entered into for profit. And it has been the specific policy with respect to bad debts since the Revenue Act of 1942 incorporated into § 23 (k) of the 1939 Code the distinction between business and non-business bad debts. 56 Stat. 820.
  The point, however, is that the tax statutes have made the distinction, that the Congress therefore intended it to be a meaningful one, and that the distinction is not to be obliterated or blunted by an interpretation that tends to equate the business bad debt with the nonbusiness bad debt. We think that emphasis upon the significant rather than upon the dominant would have a tendency to do just that.
  B. Application of the significant-motivation standard would also tend to undermine and circumscribe the Court’s holding in Whip-ple and the emphasis there that a shareholder’s mere activity in a corporation’s affairs is not a trade or business. As Chief Judge Lumbard pointed out in his separate and disagreeing concurrence in Weddle, supra, 325 F. 2d, at 852-853, both motives— that of protecting the investment and that of protecting the salary — are inevitably involved, and an inquiry whether employee status provides a significant motivation will always produce an affirmative answer and result in a judgment for the taxpayer.
  C. The dominant-motivation standard has the attribute of workability. It provides a guideline of certainty for the trier of fact. The trier then may compare the risk against the potential reward and give proper emphasis to the objective rather than to the subjective. As has just been noted, an employee-shareholder, in making or guaranteeing a loan to his corporation, usually acts with two motivations, the one to protect his investment and the other to protect his employment. By making the dominant motivation the measure, the logical tax consequence ensues and prevents the mere presence of a business motive, however small and however insignificant, from controlling the tax result at the taxpayer’s convenience. This is of particular importance in a tax system that is so largely dependent on voluntary compliance.
  D. The dominant-motivation test strengthens and is consistent with the mandate of § 262 of the Code, 26 U. S. C. § 262, that “no deduction shall be allowed for personal, living, or family expenses” except as otherwise provided. It prevents personal considerations from circumventing this provision.
  E. The dominant-motivation approach to § 166 (d) is consistent with that given the loss provisions in § 165 (c)(1), see, for example, Imbesi v. Commissioner, 361 F. 2d 640, 644 (CA3 1966), and in § 165 (c)(2), see Austin v. Commissioner, 298 F. 2d 583, 584 (CA2 1962). In these related areas, consistency is desirable. See also, Commissioner v. Duberstein, 363 U. S. 278, 286 (1960).
  F. We see no inconsistency, such as the taxpayer suggests, between the Government’s urging dominant motivation here and its having urged only significant motivation as the appropriate standard for the incurrence of liability for the accumulated-earnings tax under § 531 of the 1954 Code, 26 U. S. C. § 531, and for includability in the gross estate,-for federal estate tax purposes, of a transfer made in contemplation of death under § 2035, 26 U. S. C. § 2035. Sections 531 and 2035 are Congress’ answer to tax avoidance activity. United States v. Donruss Co., 393 U. S. 297, 303 (1969), and Farmers’ Loan & Trust Co. v. Bowers, 98 F. 2d 794 (CA2 1938), cert. denied, 306 U. S. 648 (1939).
  G. The Regulations’ use of the word “proximate” perhaps is not the most fortunate, for it naturally tempts one to think in tort terms. The temptation, however, is best rejected, and we reject it here. In tort law factors of duty, of foreseeability, of secondary cause, and of plural liability are under consideration, and the concept of proximate cause has been developed as an appropriate application and measure of these factors. It has little place in tax law where plural aspects are not usual, where an item either is or is not a deduction, or either is or is not a business bad debt, and where certainty is desirable.
  IV
  The conclusion we have reached means that the District Court's instructions, based on a standard of significant rather than dominant motivation, are erroneous and that, at least, a new trial is required. We have examined the record, however, and find nothing that would support a jury verdict in this taxpayer’s favor had the dominant-motivation standard been embodied in the instructions. Judgment n. o. v. for the United States, therefore, must be ordered. See Neely v. Eby Construction Co., 386 U. S. 317 (1967).
  As Judge Simpson pointed out in his dissent, 427 F. 2d, at 284-285, the only real evidence offered by the taxpayer bearing upon motivation was his own testimony that he signed the indemnity agreement “to protect my job,” that “I figured in three years’ time I would get my money out,” and that “I never once gave it [his investment in the corporation] a thought.”
  The statements obviously are self-serving. In addition, standing alone, they do not bear the light of analysis. What the taxpayer was purporting to say was that his $12,000 annual salary was his sole motivation, and that his $38,900 original investment, the actual value of which prior to the misfortunes of 1962 we do not know, plus his loans to the corporation, plus his personal interest in the integrity of the corporation as a source of living for his son-in-law and as an investment for his son and his other son-in-law, were of no consequence whatever in his thinking. The comparison is strained all the more by the fact that the salary is pre-tax and the investment is taxpaid. With his total annual income about $40,000, Mr. Generes may well have reached a federal income tax bracket of 40% or more for a joint return in 1958-1962. §§ 1 and 2 of the 1954 Code, 68A Stat. 5 and 8. The $12,000 salary thus would produce for him only about $7,000 net after federal tax and before any state income tax. This is the figure, and not $12,000, that has any possible significance for motivation purposes, and it is less than % of the original stock investment.
  We conclude on these facts that the taxpayer’s explanation falls of its own weight, and that reasonable minds could not ascribe, on this record, a dominant motivation directed to the preservation of the taxpayer’s salary as president of Kelly-Generes Construction Co., Inc.
  The judgment is reversed and the case is remanded with direction that judgment be entered for the United States.
  It is so ordered.
  Me. Justice Powell and Mr. Justice Rehnquist took no part in the consideration or decision of this case.
  “§ 166. Bad debts.
  “(a) General rule.—
  “(1) Wholly worthless debts. — There shall be allowed as a deduction any debt which becomes worthless within the taxable year.
  “(d) Nonbusiness debts.—
  “(1) General rule. — In the case of a taxpayer other than a corporation—
  “(A) subsections (a) and (c) shall not apply to any nonbusiness debt; and
  “(B) where any nonbusiness debt becomes worthless within the taxable year, the loss resulting therefrom shall be considered a loss from the sale or exchange, during the taxable year, of a capital asset held for not more than 6 months.
  “(2) Nonbusiness debt defined. — For purposes of paragraph (1), the term 'nonbusiness debt’ means a debt other than—
  “(A) a debt created or acquired (as the case may be) in connection with a trade or business of the taxpayer; or
  “(B) a debt the loss from the worthlessness of which is incurred in the taxpayer’s trade or business.”
  Treas. Reg. on Income Tax:
  “26 CFR § 1.166-5 Nonbusiness debts.
  “(b) Nonbusiness debt defined. For purposes of section 166 and this section, a nonbusiness debt is any debt other than—
  “(2) A debt the loss from the worthlessness of which is incurred in the taxpayer’s trade or business. The question whether a debt is a nonbusiness debt is a question of fact in each particular case. . . . For purposes of subparagraph (2) of this paragraph, the character of the debt is to be determined by the relation which the loss resulting from the debt’s becoming worthless bears to the trade or business of the taxpayer. If that relation is a proximate one in the conduct of the trade or business in which the taxpayer is engaged at the time the debt becomes worthless, the debt comes within the exception provided by that subparagraph. . . .”
  Edna Generes, wife of Allen H. Generes, is a named party because joint income tax returns were filed by Mr. and Mrs. Generes for some of the tax years in question.
  Compare the decision below and Weddle v. Commissioner, 325 F. 2d 849 (CA2 1963), with Niblock v. Commissioner, 417 F. 2d 1185 (CA7 1969). In Smith v. Commissioner, 55 T. C. 260, 268-271 (1970), reviewed without dissent, the Tax Court felt constrained, under the policy expressed in Golsen v. Commissioner, 54 T. C. 742 (1970), aff’d, 445 E. 2d 985 (CA10 1971), to apply the Fifth Circuit test but stated that it agreed with the Seventh Circuit. Cases where the resolution of the issue was avoided include Stratmore v. United States, 420 F. 2d 461 (CA3 1970), cert. denied, 398 U. S. 951; Kelly v. Patterson, 331 F. 2d 753, 757 (CA5 1964); and Gillespie v. Commissioner, 54 T. C. 1025, 1032 (1970). See, also, Millsap v. Commissioner, 387 F. 2d 420 (CA8 1968). For commentary on the present case, see 3 Sw. U. L. Rev. 135 (1971); 2 Tex. Tech. L. Rev. 318 (1971); and 28 Wash. & Lee L. Rev. 161 (1971).
  This difference in treatment between the loss on the direct loan and that on the indemnity is not explained. See, however, Whipple v. Commissioner, 373 U. S. 193 (1963).
  “A debt is proximately related to the taxpayer’s trade or business when its creation was significantly motivated by the taxpayer’s trade or business, and it is not rendered a non-business debt merely because there was a non-qualifying motivation as well, even though the non-qualifying motivation was the primary one.”
  “You must, in short, determine whether Mr. Generes’ dominant motivation in signing the indemnity agreement was to protect his salary and status as an employee or was to protect his investment in the Kelly-Generes Construction Co.
  “Mr. Generes is entitled to prevail in this case only if he convinces you that the dominant motivating factor for his signing the indemnity agreement was to insure the receiving of his salary from the company. It is insufficient if the protection or insurance of his salary was only a significant secondary motivation for his signing the indemnity agreement. It must have been his dominant or most important reason for signing the indemnity agreement.”
  “Even if the taxpayer demonstrates an independent trade or business of his own, care must be taken to distinguish bad debt losses arising from his own business and those actually arising from activities peculiar to an investor concerned with, and participating in, the conduct of the corporate business.” 373 U. S., at 202.
  App. 67 and 59.
  Rather than Vk, as the taxpayer in his testimony suggested, App. 59, overlooking the pre-tax character of his salaried earnings.