26 U.S. Code § 810 - Operations loss deduction
The entire amount of the loss from operations for any loss year shall be carried to the earliest of the taxable years to which (by reason of paragraph (1)) such loss may be carried. The portion of such loss which shall be carried to each of the other taxable years shall be the excess (if any) of the amount of such loss over the sum of the offsets (as defined in subsection (d)) for each of the prior taxable years to which such loss may be carried.
In the case of a loss from operations for any taxable year, the taxpayer may elect to relinquish the entire carryback period for such loss. Such election shall be made by the due date (including extensions of time) for filing the return for the taxable year of the loss from operations for which the election is to be in effect, and, once made for any taxable year, such election shall be irrevocable for that taxable year.
In the case of an applicable loss from operations with respect to which the taxpayer has elected the application of this paragraph, paragraph (1)(A) shall be applied by substituting any whole number elected by the taxpayer which is more than 3 and less than 6 for “3”.
For purposes of this paragraph, the term “applicable loss from operations” means the taxpayer’s loss from operations for a taxable year ending after December 31, 2007, and beginning before January 1, 2010.
Any election under this paragraph shall be made in such manner as may be prescribed by the Secretary, and shall be made by the due date (including extension of time) for filing the return for the taxpayer’s last taxable year beginning in 2009. Any such election, once made, shall be irrevocable.
The amount of any loss from operations which may be carried back to the 5th taxable year preceding the taxable year of such loss under subparagraph (A) shall not exceed 50 percent of the taxpayer’s taxable income (computed without regard to the loss from operations for the loss year or any taxable year thereafter) for such preceding taxable year.
The term “loss from operations” means the excess of the life insurance deductions for any taxable year over the life insurance gross income for such taxable year.
For purposes of subsection (b)(2), the term “offset” means, with respect to any taxable year, an amount equal to that increase in the operations loss deduction for the taxable year which reduces the life insurance company taxable income (computed without regard to paragraphs (2) and (3) of section 804)  or such year to zero.
For purposes of this part, a life insurance company is a new company for any taxable year only if such taxable year begins not more than 5 years after the first day on which it (or any predecessor, if section 381(c)(22) applies) was authorized to do business as an insurance company.
Except as provided in section 805(b)(5),
For purposes of this section and section 812 (as in effect before the enactment of the Life Insurance Tax Act of 1984), this section shall be treated as a continuation of such section 812.
 So in original. The comma probably should not appear.
 See References in Text note below.
The Life Insurance Tax Act of 1984, referred to in subsec. (g), probably means title II of div. A of Pub. L. 98–369, which amended this part generally and was approved July 18, 1984.
A prior section 810, added Pub. L. 86–69, § 2(a), June 25, 1959, 73 Stat. 125; amended Pub. L. 91–172, title I, § 121(b)(5)(B), title IX, § 907(a)(2), Dec. 30, 1969, 83 Stat. 541, 715, related to rules for certain reserves, prior to the general revision of this part by Pub. L. 98–369, § 211(a).
2014—Subsec. (c)(2)(B). Pub. L. 113–295, which directed amendment of subpar. (B) by striking out “244 (relating to dividends on certain preferred stock of public utilities),” was amended by striking out “244 (relating to dividends received on certain preferred stock of public utilities),” after “received by corporations),” to reflect the probable intent of Congress.
2009—Subsec. (b)(4). Pub. L. 111–92 added par. (4).
Amendment by Pub. L. 113–295 not applicable to preferred stock issued before Oct. 1, 1942 (determined in the same manner as under section 247 of this title as in effect before its repeal by Pub. L. 113–295), see section 221(a)(41)(K) of Pub. L. 113–295, set out as a note under section 172 of this title.
Except as otherwise provided in section 221(a) of Pub. L. 113–295, amendment by Pub. L. 113–295 effective Dec. 19, 2014, subject to a savings provision, see section 221(b) of Pub. L. 113–295, set out as a note under section 1 of this title.
Amendment by Pub. L. 111–92 applicable to losses arising in taxable years ending after Dec. 31, 2007, with transition provisions and exception for TARP recipients, see section 13(e), (f) of Pub. L. 111–92, set out as a note under section 56 of this title.
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