Treasury Regulations · 26 CFR
§ 1.381(c)(1)-1. Net operating loss carryovers in certain corporate acquisitions.
Regulation text, no changes From the eCFR, current as of October 15, 2026. The eCFR is an authoritative but unofficial editorial compilation of the Code of Federal Regulations; the official text is the annual CFR on govinfo. Compare it with this section on ecfr.gov (external site) or the official annual CFR on govinfo (external site).
Regulation under 26 U.S.C. § 381(c)(1)
Cite as 26 CFR § 1.381(c)(1)-1
At a glance
Read from the text and its source citation. Not part of the regulation.
- Status
- In the current eCFR
- Issued
- November 26, 1960 by T.D. 6500
- Last amended
- September 12, 1978 by T.D. 7564
- Issued under
- 26 U.S.C. § 381(c)(1)
- Length
- 6,415 words · about 28 min to read
- Cross-references
- cites 7 Code sections and 2 regulations; cited by 3
On December 31, 1954, X Corporation merged into Y Corporation in a statutory merger to which section 361 applies, and the charter of Y Corporation continued after the merger. Y Corporation sustained a net operating loss for the calendar year 1955. Y Corporation's net operating loss for 1955 may not be carried back in computing the taxable income of X Corporation but shall be carried back in computing the taxable income of Y Corporation.
On December 31, 1954, X Corporation and Y Corporation transferred all their assets to Z Corporation in a statutory consolidation to which section 361 applies. Z Corporation sustained a net operating loss for the calendar year 1955. Z Corporation's net operating loss for 1955 may not be carried back in computing the taxable income of X Corporation or Y Corporation.
On December 31, 1954, X Corporation ceased all operations (other than liquidating activities) and transferred substantially all its properties to Y Corporation in a reorganization qualifying under section 368(a)(1)(C). Such properties comprised all of X Corporation's properties which were to be transferred pursuant to the reorganization. In the process of liquidating its assets and winding up its affairs, X Corporation sustained a net operating loss for its taxable year beginning on January 1, 1955. This net operating loss of X Corporation shall be carried back in computing the taxable income of that corporation but may not be carried back or over in computing the taxable income of Y Corporation.
(i) X Corporation and Y Corporation were organized on January 1, 1956, and make their returns on the calendar year basis. On December 16, 1957, X Corporation transferred all its assets to Y Corporation in a statutory merger to which section 361 applies. The net operating losses and taxable income (computed without the net operating loss deduction) of the two corporations are as follows, the assumption being made that none of the modifications specified in section 172(b)(2)(A) apply to any taxable year:
| Taxable year | X Corporation (transferor) | Y Corporation (acquirer) |
|---|---|---|
| 1956 | ($35,000) | ($5,000) |
| Ending 12-16-57 | (30,000) | xxx |
| 1957 | xxx | 36,500 |
(ii) The aggregate of the net operating loss carryovers of X Corporation carried under section 381(c)(1)(A) to Y Corporation's taxable year ending December 31, 1957, is $65,000; but pursuant to section 381(c)(1)(B), only $1,500 of such aggregate amount ($36,500 × 15/365) may be used in computing the net operating loss deduction of Y Corporation for such taxable year under section 172(a). This limitation applies even though Y Corporation's own net operating loss carryover to such year is only $5,000, with the result that Y Corporation has taxable income under section 63 of $30,000 for its taxable year ending December 31, 1957, that is, $36,500 less the sum of $5,000 and $1,500.
(iii) For rules determining the portion of any given loss of X Corporation or Y Corporation which may be carried to a taxable year of Y Corporation following its taxable year ending December 31, 1957, see sections 172(b)(2) and 381(c)(1)(C) and paragraph (f) of this section.
(i) X Corporation was organized on January 1, 1954, and Y Corporation was organized on January 1, 1956. Each corporation makes its return on the basis of the calendar year. On December 31, 1956, X Corporation transferred all its assets to Y Corporation in a statutory merger to which section 361 applies. The net operating losses and the taxable income (computed without any net operating loss deduction) of the two corporations are as follows, the assumption being made that none of the modifications specified in section 172(b)(2)(A) apply to any taxable year:
| Taxable year | X Corporation (transferor) | Y Corporation (acquirer) |
|---|---|---|
| 1954 | ($5,000) | xxx |
| 1955 | (15,000) | xxx |
| 1956 | (10,000) | $20,000 |
| 1957 | xxx | 40,000 |
(ii) The aggregate of the net operating loss carryovers of X Corporation carried under section 381(c)(1)(A) to Y Corporation's taxable year 1957 is $30,000, and the full amount of such carryovers is allowed in such taxable year to Y Corporation as a deduction under section 172(a), since such amount does not exceed the limitation ($40,000 × 365/365) for such taxable year under section 381(c)(1)(B).
(i) X Corporation, Y Corporation, and Z Corporation were organized on January 1, 1954, and each corporation makes its return on the basis of the calendar year. On September 30, 1956, X Corporation and Y Corporation transferred all their assets to Z Corporation in a statutory merger to which section 361 applies. The net operating losses and the taxable income (computed without any net operating loss deduction) of the three corporations are as follows, the assumption being made that none of the modifications specified in section 172(b)(2)(A) apply to any taxable year:
| Taxable year | X Corporation (transferor) | Y Corporation (transferor) | Z Corporation (acquirer) |
|---|---|---|---|
| 1954 | ($5,000) | ($3,000) | ($40,000) |
| 1955 | (4,000) | (2,000) | 10,000 |
| Ending 9-30-56 | (1,000) | (9,000) | xxx |
| 1956 | xxx | xxx | 73,200 |
(ii) The aggregate of the net operating loss carryovers of X Corporation and Y Corporation carried under section 381(c)(1)(A) to Z Corporation's taxable year 1956 is $24,000; but, pursuant to section 381(c)(1)(B), only $18,400 of such aggregate amount ($73,200 × 92/366) may be used in computing the net operating loss deduction of Z Corporation for such taxable year under section 172(a). For this purpose, Z Corporation may not use the total of the aggregate carryovers ($10,000) from X Corporation plus the aggregate carryovers ($14,000) from Y Corporation, even though each such aggregate of carryovers is separately less than the limitation ($18,400) applicable under section 381(c)(1)(B) and this section.
(iii) For rules determining the portion of any given loss of X Corporation, Y Corporation, or Z Corporation which may be carried to a taxable year of Z Corporation following its taxable year ending December 31, 1956, see sections 172(b)(2) and 381(c)(1)(C) and paragraph (f) of this section.
X Corporation was organized on January 1, 1954, and thereafter it sustained net operating losses in its calendar years 1954, 1955, and 1956. On June 30, 1957, X Corporation transferred all its assets to Y Corporation, which was organized on January 1, 1955, in a statutory merger to which section 361 applies. In its taxable year ending June 30, 1957, X Corporation sustained a net operating loss. Y Corporation sustained net operating losses in its calendar years 1955, 1956, and 1958, but had taxable income for the year 1957. The years to which these losses of X Corporation and Y Corporation shall be carried, and the sequence in which carried, are as follows:
| Loss year | |
|---|---|
| X 1954 | X 1955, X 1956, X 6/30/57, Y 1957, Y 1958. |
| X 1955 | X 1954, X 1956, X 6/30/57, Y 1957, Y 1958, Y 1959. |
| Y 1955 | Y 1956, Y 1957, Y 1958, Y 1959, Y 1960. |
| X 1956 | X 1954, X 1955, X 6/30/57, Y 1957, Y 1958, Y 1959, Y 1960. |
| Y 1956 | Y 1955, Y 1957, Y 1958, Y 1959, Y 1960, Y 1961. |
| X 6-30-57 | X 1955, X 1956, Y 1957, Y 1958, Y 1959, Y 1960, Y 1961. |
| Y 1958 | Y 1955, Y 1956, Y 1957, Y 1959, Y 1960, Y 1961, Y 1962, Y 1963. |
X Corporation and Y Corporation were organized on January 1, 1955, and each corporation makes its return on the basis of the calendar year. On December 31, 1956, X Corporation transferred all its assets to Y Corporation in a statutory merger to which section 361 applies. The net operating losses and the taxable income (computed without any net operating loss deduction) of the two corporations are as follows, the assumption being made that none of the modifications specified in section 172(b)(2)(A) apply to any taxable year:
| Taxable year | X Corporation (transferor) | Y Corporation (acquirer) |
|---|---|---|
| 1955 | ($2,000) | ($11,000) |
| 1956 | (3,000) | 10,000 |
| 1957 | xxx | (15,000) |
The sequence in which the losses of X Corporation and Y Corporation are applied, and the computation of the carryovers to Y Corporation's calendar year 1958, may be illustrated as follows:
(i) X Corporation's 1955 loss. The carryover to 1958 is $2,000, computed as follows:
| Net operating loss | $2,000 | |
| Less: | ||
| X's 1956 taxable income | 0 | |
| Y's 1957 taxable income | 0 | |
| 0 | ||
| Carryover | 2,000 | |
(ii) Y Corporation's 1955 loss. The carryover to 1958 is $1,000, computed as follows:
| Net operating loss | $11,000 | |
| Less: | ||
| Y's 1956 taxable income | $10,000 | |
| Y's 1957 taxable income | 0 | |
| 10,000 | ||
| Carryover | 1,000 | |
(iii) X Corporation's 1956 loss. The carryover to 1958 is $3,000, computed as follows:
| Net operating loss | $3,000 | |
| Less: | ||
| X's 1955 taxable income | 0 | |
| Y's 1957 taxable income | 0 | |
| 0 | ||
| Carryover | 3,000 | |
(iv) Y Corporation's 1957 loss. The carryover to 1958 is $15,000, computed as follows:
| Net operating loss | $15,000 | ||
| Less: | |||
| Y's 1955 taxable income | 0 | ||
| Y's 1956 taxable income before net operating loss deduction | $10,000 | ||
| Minus Y's 1956 net operating loss deduction (i.e., Y's 1955 carryover) | 11,000 | 0 | |
| 0 | |||
| Carryover | 15,000 | ||
(v) Summary of carryovers to 1958. The aggregate of the net operating loss carryovers to 1958 is $21,000, computed as follows:
| X's 1955 loss | $2,000 |
| Y's 1955 loss | 1,000 |
| X's 1956 loss | 3,000 |
| Y's 1957 loss | 15,000 |
| Total | 21,000 |
(i) Facts. X Corporation was organized on January 1, 1955, and Y Corporation was organized on January 1, 1954. Each corporation makes its return on the basis of the calendar year. On June 30, 1956, X Corporation transferred all its assets to Y Corporation in a statutory merger to which section 361 applies. The net operating losses and the taxable income (computed without any net operating loss deduction) of the two corporations are as follows, the assumption being made that none of the modifications specified in section 172(b)(2)(A) apply to any taxable year:
| Taxable year | X Corporation (transferor) | Y Corporation (acquirer) |
|---|---|---|
| 1954 | xxx | ($5,000) |
| 1955 | ($65,000) | (20,000) |
| Ending June 30, 1956 | 1,000 | xxx |
| 1956 | xxx | 36,600 |
(ii) Y Corporation's 1954 loss. The carryover to 1957 is $0, computed as follows:
| Net operating loss | $5,000 | |
| Less: | ||
| Y's 1955 taxable income | 0 | |
| Carryover to Y's preacquisition part year | 5,000 | |
| Less: | ||
| Y's preacquisition part year taxable income computed under subparagraph (5) of this paragraph ($36,600 × 182/366) | $18,200 | |
| Minus Y's net operating loss deduction for preacquisition part year | xxx | 18,200 |
| Carryover to Y's postacquisition part year and also to Y 1957 | 0 | |
(iii) X Corporation's 1955 loss. The carryover to 1957 is $45,600, computed as follows:
| Net operating loss | $65,000 | |
| Less: | ||
| X's 6/30/56 year taxable income | 1,000 | |
| Carryover to Y's postacquisition part year | 64,000 | |
| Less: | ||
| Y's postacquisition part year taxable income computed under subparagraph (5) of this paragraph ($36,600 × 184/366) | $18,400 | |
| Minus Y's net operating loss deduction for postacquisition part year (i.e., Y's 1954 carryover of $0 to such part year) | $18,400 | |
| Carryover to Y 1957 | 45,600 | |
(iv) Y Corporation's 1955 loss. The carryover to 1957 is $6,800, computed as follows:
| Net operating loss | $20,000 | |
| Less: | ||
| Y's 1954 taxable income | 0 | |
| Carryover to Y's preacquisition part year | 20,000 | |
| Less: | ||
| Y's preacquisition part year taxable income computed under subparagraph (5) of this paragraph | $18,200 | |
| Minus Y's net operating loss deduction for preacquisition part year (i.e., Y's 1954 carryover to such part year) | 5,000 | |
| 13,200 | ||
| Carryover to Y's postacquisition part year | 6,800 | |
| Less: | ||
| Y's postacquisition part year taxable income computed under subparagraph (5) of this paragraph | $18,400 | |
| Minus Y's net operating loss deduction for postacquisition part year (i.e., Y's 1954 carryover of $0, and X's 1955 carryover of $64,000, to such part year) | 64,000 | |
| 0 | ||
| Carryover to Y 1957 | 6,800 | |
(v) Summary of carryovers to 1957. The aggregate of the net operating loss carryovers to 1957 is $52,400, determined as follows:
| Y's 1954 loss | 0 |
| X's 1955 loss | $45,600 |
| Y's 1955 loss | 6,800 |
| Total | 52,400 |
(1) Facts. X Corporation was organized on January 1, 1954, and Y Corporation was organized on January 1, 1955. Each corporation makes its return on the basis of the calendar year. On August 31, 1957, X Corporation transferred all its assets to Y Corporation in a statutory merger to which section 361 applies. The net operating losses and the taxable income of the two corporations for the taxable years involved are set forth in the tabulation below. The taxable income so shown is computed without the modifications required by section 172(b)(2)(A) and without the benefit of any net operating loss deduction. In its calendar year 1957, Y Corporation had a deduction of $365 which is disallowed by section 172(b)(2)(A).
| Taxable year | X Corporation (transferor) | Y Corporation (acquirer) |
|---|---|---|
| 1954 | ($7,000) | xxx |
| 1955 | (10,000) | ($10,000) |
| 1956 | (25,000) | (15,000) |
| Ending 8-31-57 | 1,000 | xxx |
| 1957 | xxx | 54,750 |
| 1958 | xxx | (5,000) |
| 1959 | xxx | 50,000 |
(2) Computation of carryovers and carrybacks. The sequence in which the losses of X Corporation and Y Corporation are applied and the computation of the carryovers to Y Corporation's calendar year 1959 may be illustrated as follows:
(i) X Corporation's 1954 loss. The carryover to 1958, which is the last year to which this loss may be carried, is $0, computed as follows:
| Net operating loss | $7,000 | |
| Less: | ||
| X's 1955 taxable income | 0 | |
| X's 1956 taxable income | 0 | |
| 0 | ||
| Carryover to X's 8/31/57-year | 7,000 | |
| Less: | ||
| X's 8/31/57-year taxable income | 1,000 | |
| Carryover to Y's postacquisition part year | 6,000 | |
| Less: | ||
| Y's postacquisition part year taxable income computed under paragraph (f)(5) of this section (($54,750 + $365) × 122/365) | $18,422 | |
| Minus Y's net operating loss deduction for postacquisition part year | xxx | |
| 18,422 | ||
| Carryover to Y 1958 | 0 | |
(ii) X Corporation's 1955 loss. The carryover to 1959 is $0, computed as follows:
| Net operating loss | $10,000 | |
| Less: | ||
| X's 1954 taxable income | 0 | |
| X's 1956 taxable income | 0 | |
| 0 | ||
| Carryover to X's 8/31/57-year | 10,000 | |
| Less: | ||
| X's 8/31/57-year taxable income before net operating loss deduction | $1,000 | |
| Minus X's net operating loss deduction for 8/31/57-year (i.e., X's 1954 carryover) | 7,000 | |
| 0 | ||
| Carryover to Y's postacquisition part year | 10,000 | |
| Less: | ||
| Y's postacquisition part year taxable income computed under paragraph (f)(5) of this section | $18,422 | |
| Minus Y's net operating loss deduction for postacquisition part year (i.e., X's 1954 carryover to such part year) | 6,000 | |
| 12,422 | ||
| Carryover to Y 1958 and Y 1959 | 0 | |
(iii) Y Corporation's 1955 loss. The carryover to 1959 is $0, computed as follows:
| Net operating loss | $10,000 | |
| Less: | ||
| Y's 1956 taxable income | 0 | |
| Carryover to Y's preacquisition part year | 10,000 | |
| Less: | ||
| Y's preacquisition part year taxable income computed under paragraph (f)(5) of this section (($54,750 + $365) × 243/365) | $36,693 | |
| Minus Y's net operating loss deduction for preacquisition part year | xxx | |
| 36,693 | ||
| Carryover to Y's postacquisition part year, to Y 1958, and to Y 1959 | 0 | |
(iv) X Corporation's 1956 loss. The carryover to 1959 is $22,578, computed as follows:
| Net operating loss | $25,000 | ||
| Less: | |||
| X's 1954 taxable income | 0 | ||
| X's 1955 taxable income | 0 | ||
| X's 8/31/57-year taxable income before net operating loss deduction | $1,000 | ||
| Minus X's net operating loss deduction for 8/31/57-year (i.e., X's 1954 carryover of $7,000 and X's 1955 carryover of $10,000) | $17,000 | 0 | 0 |
| Carryover to Y's postacquisition part year | $25,000 | ||
| Less: | |||
| Y's postacquisition part year taxable income computed under paragraph (f)(5) of this section | $18,422 | ||
| Minus Y's net operating loss deduction for postacquisition part year (i.e., X's 1954 carryover of $6,000, X's 1955 carryover of $10,000 and Y's 1955 carryover of $0, to such part year) | 16,000 | ||
| 2,422 | |||
| Carryover to Y 1958 | 22,578 | ||
| Less: | |||
| Y's 1958 taxable income | 0 | ||
| Carryover to Y 1959 | 22,578 | ||
(v) Y Corporation's 1956 loss. The carryover to 1959 is $0, computed as follows:
| Net operating loss | $15,000 | |
| Less: | ||
| Y's 1955 taxable income | 0 | |
| Carryover to Y's preacquisition part year | 15,000 | |
| Less: | ||
| Y's preacquisition part year taxable income computed under paragraph (f)(5) of this section | $36,693 | |
| Minus Y's net operating loss deduction for preacquisition part year (i.e., Y's 1955 carryover to such part year) | 10,000 | |
| 26,693 | ||
| Carryover to Y's postacquisition part year, to Y 1958, and to Y 1959 | 0 | |
(vi) Y Corporation's 1958 loss. The carryover to 1959 is $0, computed as follows:
| Net operating loss | $5,000 | |
| Less: | ||
| Y's 1955 taxable income 1 | 0 | |
| Y's 1956 taxable income | 0 | |
| 0 | ||
| Carryback to Y's preacquisition part year | $5,000 | |
| Less: | ||
| Y's preacquisition part year taxable income computed under paragraph (f)(5) of this section | $36,693 | |
| Minus Y's net operating loss deduction for preacquisition part year (i.e., Y's 1955 carryover of $10,000, and Y's 1956 carryover of $15,000, to such part year) | 25,000 | |
| 11,693 | ||
| Carryback to Y's postacquisition part year and carryover to Y 1959 | 0 | |
| 1 Three-year carryback in case of loss years ending after December 31, 1957. | ||
(vii) Summary of carryovers to 1959. The aggregate of the net operating loss carryovers to 1959 is $22,578, computed as follows:
| X's 1955 loss | 0 |
| Y's 1955 loss | 0 |
| X's 1956 loss | $22,578 |
| Y's 1956 loss | 0 |
| Y's 1958 loss | 0 |
| Total | 22,578 |
(3) Net operating loss deduction for 1957. (i) The net operating loss deduction available to Y Corporation under section 172(a) for the calendar year 1957, determined in accordance with paragraph (d) of this section, is $48,300, computed as follows:
| Aggregate of the net operating loss carryovers available to the transferor corporation as of the close of August 31, 1957, but limited by paragraph (d) of this section to $18,300 (Y's 1957 taxable income of $54,750, computed without any net operating loss deduction, multiplied by 122/365) | ||
| Carryover of X's 1954 loss | $6,000 | |
| Carryover of X's 1955 loss | 10,000 | |
| Carryover of X's 1956 loss | 25,000 | |
| $41,000 | ||
| Aggregate of carryovers, limited as above | $18,300 | |
| Carryover of Y's 1955 loss | 10,000 | |
| Carryover of Y's 1956 loss | 15,000 | |
| Carryback of Y's 1958 loss | 5,000 | |
| Net operating loss deduction | 48,800 | |
(ii) The taxable income under section 63 for 1957 is $6,450, computed as follows:
| Taxable income determined without any net operating loss deduction | $54,750 |
| Less: | |
| Net operating loss deduction for 1957, as determined under subdivision (i) of this subparagraph | $48,300 |
| Taxable income under section 63 | 6,450 |
(4) Net operating loss deduction for 1959. The taxable income under section 63 for 1959 is $27,422, computed as follows:
| Taxable income determined without any net operating loss deduction | $50,000 |
| Less: | |
| Net operating loss deduction for 1959 (i.e., the aggregate carryovers determined under subparagraph (2)(vii) of this paragraph) | 22,578 |
| Taxable income under section 63 | 27,422 |
(5) Years to which losses may be carried. The taxable years to which the losses of X Corporation and Y Corporation may be carried, and the sequence in which carried, are as follows:
| Loss year | Carried to |
|---|---|
| X 1954 | X 1955, X 1956, X 8/31/57, Y 1957, Y 1958. |
| X 1955 | X 1954, X 1956, X 8/31/57, Y 1957, Y 1958, Y 1959. |
| Y 1955 | Y 1956, Y 1957, Y 1958, Y 1959, Y 1960. |
| X 1956 | X 1954, X 1955, X 8/31/57, Y 1957, Y 1958, Y 1959, Y 1960. |
| Y 1956 | Y 1955, Y 1957, Y 1958, Y 1959, Y 1960, Y 1961. |
| Y 1958 | Y 1955, Y 1956, Y 1957, Y 1959, Y 1960, Y 1961, Y 1962, Y 1963. |
[T.D. 6500, 25 FR 11607, Nov. 26, 1960, as amended by T.D. 7564, 43 FR 40493, Sept. 12, 1978]
Cross-references
Computed from the citations in the text of 26 CFR.
Code sections it cites
- § 381 Carryovers in certain corporate acquisitions
- § 172 Net operating loss deduction
- § 382 Limitation on net operating loss carryforwards and certain built-in losses following ownership change
- § 56 Adjustments in computing alternative minimum taxable income
- § 361 Nonrecognition of gain or loss to corporations; treatment of distributions
- § 368 Definitions relating to corporate reorganizations
- § 63 Taxable income defined
Regulations it cites
- § 1.381(a)-1 General rule relating to carryovers in certain corporate acquisitions.
- § 1.381(c)(1)-2 Net operating loss carryovers; two or more dates of distribution or transfer in the taxable year.
Cited by 3 other regulations
Amendment history
From the source citation at the end of the section, newest first. T.D. is a Treasury decision; FR is the Federal Register.
- Amended by T.D. 7564 (43 FR 40493)
- Issued by T.D. 6500 (25 FR 11607)
Where it sits in 26 CFR
- Subchapter A Income tax
- Part 1 Income taxes
- Carryovers
Nearby sections
- § 1.381(a)-1 General rule relating to carryovers in certain corporate acquisitions.
- § 1.381(b)-1 Operating rules applicable to carryovers in certain corporate acquisitions.
- § 1.381(c)(1)-1 Net operating loss carryovers in certain corporate acquisitions.
- § 1.381(c)(1)-2 Net operating loss carryovers; two or more dates of distribution or transfer in the taxable year.
- § 1.381(c)(2)-1 Earnings and profits.
- § 1.381(c)(3)-1 Capital loss carryovers.
- § 1.381(c)(4)-1 Method of accounting.