debt-financed property
(1) In general For purposes of this section, the term “debt-financed property” means any property which is held to produce income and with respect to which there is an acquisition indebtedness (as defined in subsection (c)) at any time during the taxable year (or, if the property was disposed of during the taxable year, with respect to which there was an acquisition indebtedness at any time during the 12-month period ending with the date of such disposition), except that such term does not include— (A) (i) any property substantially all the use of which is substantially related (aside from the need of the organization for income or funds) to the exercise or performance by such organization of its charitable, educational, or other purpose or function constituting the basis for its exemption under section 501 (or, in the case of an organization described in section 511(a)(2)(B), to the exercise or performance of any purpose or function designated in section 501(c)(3)), or (ii) any property to which clause (i) does not apply, to the extent that its use is so substantially related; (B) except in the case of income excluded under section 512(b)(5), any property to the extent that the income from such property is taken into account in computing the gross income of any unrelated trade or business; (C) any property to the extent that the income from such property is excluded by reason of the provisions of paragraph (7), (8), or (9) of section 512(b) in computing the gross income of any unrelated trade or business; (D) any property to the extent that it is used in any trade or business described in paragraph (1), (2), or (3) of section 513(a); or (E) any property the gain or loss from the sale, exchange, or other disposition of which would be excluded by reason of the provisions of section 512(b)(19) in computing the gross income of any unrelated trade or business. For purposes of subparagraph (A), substantially all the use of a property shall be considered to be substantially related to the exercise or performance by an organization of its charitable, educational, or other purpose or function constituting the basis for its exemption under section 501 if such property is real property subject to a lease to a medical clinic entered into primarily for purposes which are substantially related (aside from the need of such organization for income or funds or the use it makes of the rents derived) to the exercise or performance by such organization of its charitable, educational, or other purpose or function constituting the basis for its exemption under section 501.