A prior section 859, added Pub. L. 94–455, title XVI, § 1601(a)(1), Oct. 4, 1976, 90 Stat. 1742; amended Pub. L. 95–600, title VII, § 701(t)(4), Nov. 6, 1978, 92 Stat. 2912, related to a deduction for deficiency dividends, prior to repeal by Pub. L. 95–600, title III, § 362(d)(6), Nov. 6, 1978, 92 Stat. 2852. See section 860 of this title.

1986—Pub. L. 99–514 designated existing provisions as subsec. (a) and added subsec. (b).

1978—Pub. L. 95–600, § 701(t)(1), designated existing provisions as par. (1), substituted “change to any accounting period” for “change to or adopt any annual accounting period”, and added par. (2) and provision for nonapplicability of par. (2) to a real estate investment trust for any taxable year beginning on or before Oct. 4, 1976.

Amendment by Pub. L. 99–514 applicable to taxable years beginning after Dec. 31, 1986, see section 669 of Pub. L. 99–514, set out as a note under section 856 of this title.

Repeal of prior section 859 of this title and redesignation of section 860 of this title as this section by section 362(d)(6) of Pub. L. 95–600 applicable with respect to determinations (as defined in section 860(e) of this title) after Nov. 6, 1978, see section 362(e) of Pub. L. 95–600, set out as an Effective Date note under section 860 of this title.

Pub. L. 95–600, title VII, § 701(t)(5), Nov. 6, 1978, 92 Stat. 2912, provided that: “The amendments made by this subsection [amending this section and sections 275, 856, 6212, and 6501 of this title] shall take effect on October 4, 1976.”