26 CFR §1.1014-9

1. (a)In general. If property consisting of stock of a DISC or former DISC (as defined in section 992(a) (1) or (3) as the case may be) is considered to have been acquired from a decedent (within the meaning of paragraph (a) or (b) of § 1.1014-2), the uniform basis of such stock under section 1014, as determined pursuant to §§ 1.1014-1 through 1.1014-8 shall be reduced as provided in this section. Such uniform basis shall be reduced by the amount (hereinafter referred to in this section as the amount of reduction), if any, which the decedent would have included in his gross income under section 995(c) as a dividend if the decedent had lived and sold such stock at its fair market value on the estate tax valuation date. If the alternate valuation date for Federal estate tax purposes is elected under section 2032, in computing the gain which the decedent would have had if he had lived and sold the stock on the alternate valuation date, the decedent's basis shall be determined with reduction for any distributions with respect to the stock which may have been made, after the date of the decedent's death and on or before the alternate valuation date, from the DISC's previously taxed income (as defined in section 996(f)(2)). For this purpose, the last sentence of section 996(e)(2) (relating to reductions of basis of DISC stock) shall not apply. For purposes of this section, if the corporation is not a DISC or former DISC at the date of the decedent's death but is a DISC for a taxable year which begins after such date and on or before the alternate valuation date, the corporation will be considered to be a DISC or former DISC only if the alternate valuation date is elected. The provisions of this paragraph apply with respect to stock of a DISC or former DISC which is included in the gross estate of the decedent, including but not limited to property which—
   1. (1)Is acquired from the decedent before his death, and the entire property is subsequently included in the decedent's gross estate for estate tax purposes, or
   2. (2)Is acquired property described in paragraph (d) of § 1.1014-3.
2. (b)Portion of property acquired from decedent before his death included in decedent's gross estate
   1. (1)In general. In cases where, due to the operation of the estate tax, only a portion of property which consists of stock of a DISC or former DISC and which is acquired from a decedent before his death is included in the decedent's gross estate, the uniform basis of such stock under section 1014, as determined pursuant to §§ 1.1014-1 through 1.1014-8, shall be reduced by an amount which bears the same ratio to the amount of reduction which would have been determined under paragraph (a) of this section if the entire property consisting of such stock were included in the decedent's gross estate as the value of such property included in the decedent's gross estate bears to the value of the entire property.
   2. (2)Example. The provisions of this paragraph may be illustrated by the following example:
3. (c)Estate tax valuation date. For purposes of section 1014(d) and this section, the estate tax valuation date is the date of the decedent's death or, in the case of an election under section 2032, the applicable valuation date prescribed by that section.
4. (d)Examples. The provisions of this section may be illustrated by the following examples: