(a) Excess business holdings—(1) In general. For purposes of section 4943, the term “excess business holdings” means, with respect to the holdings of any private foundation in any business enterprise (as described in section 4943(d)(4)), the amount of stock or other interest in the enterprise which, except as provided in §53.4943-2(a)(1), the foundation, or a disqualified person, would have to dispose of, or cause the disposition of, to a person other than a disqualified person (as defined in section 4946(a)) in order for the remaining holdings of the foundation in such enterprise to be permitted holdings (as defined in paragraphs (b) and (c) of this section). If a private foundation is required by section 4943 and the regulations thereunder to dispose of certain shares of a class of stock in a particular period of time and other shares of the same class of stock in a shorter period of time, any stock disposed of shall be charged first against those dispositions which must be made in such shorter period.

(2) Example. The provisions of this paragraph may be illustrated by the following example:

(b) Permitted holdings in an incorporated business enterprise—(1) In general—(i) Permitted holdings defined. Except as otherwise provided in section 4943(c) (2) and (4), the permitted holdings of any private foundation in an incorporated business enterprise (including a real estate investment trust, as defined in section 856) are:

(A) 20 percent of the voting stock in such enterprise reduced (but not below zero) by

(B) The percentage of voting stock in such enterprise actually or constructively owned by all disqualified persons.

(ii) Voting stock. For purposes of this section, the percentage of voting stock held by any person in a corporation is normally determined by reference to the power of stock to vote for the election of directors, with treasury stock and stock which is authorized but unissued being disregarded. Thus, for example, if a private foundation holds 20 percent of the shares of one class of stock in a corporation, which class is entitled to elect three directors, and such foundation holds no stock in the other class of stock, which is entitled to elect five directors, such foundation shall be treated as holding 7.5 percent of the voting stock because the class of stock it holds has 37.5 percent of such voting power, by reason of being able to elect three of the eight directors, and the foundation holds one-fifth of the shares of such class (20 percent of 37.5 percent is 7.5 percent). The fact that extraordinary corporate action (e.g., charter or by-law amendments) by a corporation may require the favorable vote of more than a majority of the directors, or of the outstanding voting stock, of such corporation shall not alter the determination of voting power of stock in such corporation in accordance with the two preceding sentences.

(2) Nonvoting stock as permitted holdings—(i) In general. In addition to those holdings permitted by paragraph (b)(1) of this section, the permitted holdings of a private foundation in an incorporated business enterprise shall include any share of nonvoting stock in such enterprise held by the foundation in any case in which all disqualified persons hold, actually or constructively, no more than 20 percent (35 percent where third persons have effective control as defined in paragraph (b)(3)(ii) of this section) of the voting stock in such enterprise. All equity interests which do not have voting power attributable to them shall, for purposes of section 4943, the classified as nonvoting stock. For this purpose, evidences of indebtedness (including convertible indebtedness), and warrants and other options or rights to acquire stock shall not be considered equity interests.

(ii) Stock with contingent voting rights and convertible nonvoting stock. Stock carrying voting rights which will vest only when conditions, the occurrence of which are indeterminate, have been met, such as preferred stock which gains such voting rights only if no dividends are paid thereon, will be treated as nonvoting stock until the conditions have occurred which cause the voting rights to vest. When such rights vest, the stock will be treated as voting stock that was acquired other than by purchase, but only if the private foundation or disqualified persons had no control over whether the conditions would occur. Similarly, nonvoting stock which may be converted into voting stock will not be treated as voting stock until such conversion occurs. For special rules where stock is acquired other than by purchase, see section 4943(c)(6) and the regulations thereunder.

(iii) Example. The provisions of this pararaph (2) may be illustrated by the following example:

(3) Thirty-five-percent rule where third person has effective control of enterprise—(i) In general. Except as provided in section 4943(c)(4), paragraph (b)(1) of this section shall be applied by substituting 35 percent for 20 percent if:

(A) The private foundation and all disqualified persons together do not hold, actually or constructively, more than 35 percent of the voting stock in the business enterprise, and

(B) The foundation establishes to the satisfaction of the Commissioner that effective control (as defined in paragraph (b)(3)(ii) of this section) of the business enterprise is in one or more persons (other than the foundation itself) who are not disqualfied persons.

(ii) “Effective control” defined. For purposes of this subparagraph, the term “effective control” means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a business enterprise, whether through the ownership of voting stock, the use of voting trusts, or contractual arrangements, or otherwise. It is the reality of control which is decisive and not its form or the means by which it is exercisable. Thus, where a minority interest held by individuals who are not disqualified persons has historically elected the majority of a corporation's directors, effective control is in the hands of those individuals.

(4) Two percent de minimis rule—(i) In general. Under section 4943(c)(2)(C), a private foundation is not treated as having excess business holdings in any incorporated business enterprise in which it (together with all other private foundations (including trusts described in section 4947(a)(2)) which are described in section 4946(a)(1)(H)) actually or constructively owns not more than 2 percent of the voting stock and not more than 2 percent in value of all outstanding shares of all classes of stock. If, however, the private foundation, together with all other private foundations which are described in section 4946(a)(1)(H), actually or constructively owns more than 2 percent of either the voting stock or the value of the outstanding shares of all classes of stock in any incorporated business enterprise, all the stock in such business enterprise classified as excess business holding under section 4943 is treated as excess business holdings. For purposes of this paragraph, any stock owned by a private foundation which is treated as held by a disqualified person under section 4943(c)(4)(B), (5), or (6) shall be treated as actually owned by the private foundation. See paragraph (b)(1) of §53.4941(d)-4 for the determination of excess business holdings without regard to section 4943(c)(2)(C) for purposes of applying section 101(C)(2)(B) of the Tax Reform Act of 1969 (83 Stat. 533).

(ii) Examples. The provisions of this subparagraph may be illustrated by the following examples:

(c) Permitted holdings in an unincorporated business enterprise—(1) In general. The permitted holdings of a private foundation in any business enterprise which is not incorporated shall, subject to the provisions of subparagraphs (2), (3), and (4) of this paragraph, be determined under the principles of paragraph (b) of this section.

(2) Partnership or joint venture. In the case of a partnership (including a limited partnership) or joint venture. the terms “profits interest” and “capital interest” shall be substituted for “voting stock” and “nonvoting stock,” respectively, wherever those terms appear in paragraph (b) of this section. The interest in profits of such foundation (or such disqualified person) shall be determined in the same manner as its distributive share of partnership taxable income. See section 704(b) (relating to the determination of the distributive share by the income or loss ratio) and the regulations thereunder. In the absence of a provision in the partnership agreement, the capital interest of such foundation (or such disqualified person) in a partnership shall be determined on the basis of its interest in the assets of the partnership which would be distributable to such foundation (or such disqualified person) upon its withdrawal from the partnership, or upon liquidation of the partnership, whichever is the greater.

(3) Sole proprietorship. For purposes of section 4943, a private foundation shall have no permitted holdings in a sole proprietorship. In the case of a transfer by a private foundation of a portion of a sole proprietorship, see paragraph (c)(2) of this section (relating to permitted holdings in partnerships). For the treatment of a private foundation's ownership of a sole proprietorship prior to May 26, 1969, see §53.4943-4.

(4) Trusts and other unincorporated business enterprises—(i) In general. In the case of any unincorporated business enterprise which is not described in paragraph (c) (2) or (3) of this section, the term “beneficial interest” shall be substitued for “voting stock” wherever the term appears in paragraph (b) of this section. Any and all references to nonvoting stock in paragraph (b) of this section shall be inapplicable with respect to any unincorporated business enterprise described in this subparagraph.

(ii) Trusts. For purposes of section 4943, the beneficial interest of a private foundation or any disqualified person in a trust shall be the beneficial remainder interest of such foundation or person determined as provided in paragraph (b) of §53.4943-8.

(iii) Other unincorporated business enterprises. For purposes of section 4943, the beneficial interest of a private foundation or any disqualified person in an unincorporated business enterprise (other than a trust or an enterprise described in paragraph (c) (2) or (3) of this section) includes any right to receive a portion of distributions of profits of such enterprise, and, if the portion of distributions is not fixed by an agreement among the participants, any right to receive a portion of the assets (if any) upon liquidation of the enterprise, except as a creditor or employee. For purposes of this subparagraph, a right to receive distributions of profits includes a right to receive any amount from such profits (other than as a creditor or employee), whether as a sum certain or as a portion of profits realized by the enterprise. Where there is no agreement fixing the rights of the participants in such enterprise, the interest of such foundation (or such disqualified person) in such enterprise shall be determined by dividing the amount of all equity investments or contributions to the capital of the enterprise made or obligated to be made by such foundation (or such disqualified person) by the amount of all equity investments or contributions to capital made or obligated to be made by all participants in the enterprise.

(d) Examples. The provisions of this section may be illustrated by the following examples: