26 U.S.C. § 1017: Discharge of indebtedness

an amount is excluded from gross income under subsection (a) of section 108 (relating to discharge of indebtedness), and under subsection (b)(2)(E), (b)(5), or (c)(1) of section 108, any portion of such amount is to be applied to reduce basis, The amount of reduction to be applied under subsection (a) (not in excess of the portion referred to in subsection (a)), and the particular properties the bases of which are to be reduced, shall be determined under regulations prescribed by the Secretary. the aggregate of the bases of the property held by the taxpayer immediately after the discharge, over the aggregate of the liabilities of the taxpayer immediately after the discharge. Any amount which under subsection (b)(5) or (c)(1) of section 108 is to be applied to reduce basis shall be applied only to reduce the basis of depreciable property held by the taxpayer. For purposes of this section, the term “depreciable property” means any property of a character subject to the allowance for depreciation, but only if a basis reduction under subsection (a) will reduce the amount of depreciation or amortization which otherwise would be allowable for the period immediately following such reduction. For purposes of this section, any interest of a partner in a partnership shall be treated as depreciable property to the extent of such partner’s proportionate interest in the depreciable property held by such partnership. The preceding sentence shall apply only if there is a corresponding reduction in the partnership’s basis in depreciable property with respect to such partner. a corporation holds stock in another corporation (hereinafter in this subparagraph referred to as the “subsidiary”), and such corporations are members of the same affiliated group which file a consolidated return under section 1501 for the taxable year in which the discharge occurs, At the election of the taxpayer, for purposes of this section, the term “depreciable property” includes any real property which is described in section 1221(a)(1). An election under clause (i) shall be made on the taxpayer’s return for the taxable year in which the discharge occurs or at such other time as may be permitted in regulations prescribed by the Secretary. Such an election, once made, may be revoked only with the consent of the Secretary. depreciable property shall only include depreciable real property for purposes of subparagraphs (A) and (C), subparagraph (E) shall not apply, and in the case of property taken into account under section 108(c)(2)(B), the reduction with respect to such property shall be made as of the time immediately before disposition if earlier than the time under subsection (a). shall be applied only to reduce the basis of qualified property held by the taxpayer, and First the basis of qualified property which is depreciable property. Second the basis of qualified property which is land used or held for use in the trade or business of farming. Then the basis of other qualified property. For purposes of this paragraph, the term “qualified property” has the meaning given to such term by section 108(g)(3)(C). Rules similar to the rules of subparagraphs (C), (D), and (E) of paragraph (3) shall apply for purposes of this paragraph and section 108(g). In the case of an amount excluded from gross income under section 108(a)(1)(A), no reduction in basis shall be made under this section in the basis of property which the debtor treats as exempt property under section 522 of title 11 of the United States Code. For purposes of this title, a reduction in basis under this section shall not be treated as a disposition. any property the basis of which is reduced under this section and which is neither section 1245 property nor section 1250 property shall be treated as section 1245 property, and any reduction under this section shall be treated as a deduction allowed for depreciation. For purposes of section 1250(b), the determination of what would have been the depreciation adjustments under the straight line method shall be made as if there had been no reduction under this section.