Treasury Regulations · 26 CFR
§ 1.1502-78. Tentative carryback adjustments.
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. § 1502
Cite as 26 CFR § 1.1502-78
At a glance
Read from the text and its source citation. Not part of the regulation.
- Status
- In the current eCFR
- Issued
- September 3, 1966 by T.D. 6894
- Last amended
- December 30, 2024 by T.D. 10018
- Issued under
- 26 U.S.C. § 1502
- Length
- 1,769 words · about 8 min to read
- Cross-references
- cites 3 Code sections and 6 regulations; cited by 3
Corporations P, S, and S-1 filed a consolidated return for the calendar year 2003. P, S, and S-1 also filed a consolidated return for the calendar year 2006. The group incurred a consolidated net operating loss in 2006 attributable to S-1 which may be carried back to 2003 as a consolidated net operating loss carryback. If a tentative carryback adjustment is desired, P, the common parent for the carryback year, must file an application under section 6411 and any refund will be made to P.
Assume the same facts as in example (1) except that P, S, and S-1 filed separate returns for the calendar year 2006, even though they were members of the same group for such year. P incurred a net operating loss in 1969 which may be carried back to 2003. If a tentative carryback adjustment is desired, P must file an application under section 6411 and any refund from such application will be made to P.
Corporations X, Y, and Z filed a consolidated return for the calendar year 2003. Z ceased to be a member of the group in 2004. Z filed a separate return for 2005 while X and Y filed a consolidated return for such year. The group incurred a consolidated net operating loss in 2005 attributable to Y, which may be carried back to 2003. Z also incurred a net operating loss for 2005 which may be carried back to 2003. If a tentative carryback adjustment is claimed with respect to the consolidated net operating loss, X, the common parent, must file an application under section 6411. If a tentative carryback adjustment is desired with respect to Z's loss, X must file an application. Any refunds attributable to either application will be made to X. If an assessment is made under section 6213(b)(3) to recover an excessive tentative allowance made with respect to calendar year 2003, X, Y, and Z are severally liable for such assessment.
Corporations L and M filed a consolidated return for the calendar year 2003. Corporation N filed a separate return for such year. Later, N became a member of the group and filed a consolidated return with the group for the calendar year 2005. The group incurred a consolidated net operating loss in 2005 attributable to N which may be carried back to N's separate return for 2003. If a tentative carryback adjustment is desired, N must file an application under section 6411 and any refund will be made directly to N.
Individual A owns 100 percent of the stock of X, a corporation that is not a member of a consolidated group and files separate tax returns on a calendar year basis. On January 31 of year 1, X becomes a member of the Y consolidated group, which also files returns on a calendar year basis. X is a qualified new member as defined in paragraph (e)(2)(iii)(B) of this section because, immediately prior to becoming a new member of the Y consolidated group, X was not required to join in the filing of a consolidated return. As a result of its becoming a new member of Group Y, X's separate return for the short taxable year (January 1 of year 1 through January 31 of year 1) is due September 15 of year 2 (with extensions). See § 1.1502-76(c). Group Y's consolidated return is also due September 15 of year 2 (with extensions). See § 1.1502-76(c). Solely for the purpose of complying with the twelve-month requirement for making an application for a tentative carryback adjustment under section 6411(a), X's taxable year for the separate return year is treated as ending on December 31 of year 1. X's application for a tentative carryback adjustment is therefore due on or before December 31 of year 2.
Assume the same facts as in Example 1 except that immediately prior to becoming a new member of Group Y, X was a member of the Z consolidated group. Because X was required to join in the filing of the consolidated return for Group Z, X is not a qualified new member as defined in paragraph (e)(2)(iii) of this section. X's items for the one-month period will be included in the consolidated return for Group Z. Group Z's application for a tentative carryback adjustment, if any, continues to be due within 12 months of the end of its taxable year, which is not affected by X's change in status as a new member of Group Y.
[T.D. 6894, 31 FR 11794, Sept. 3, 1966, as amended by T.D. 7059, 35 FR 14546, Sept. 17, 1970; T.D. 7246, 38 FR 767, Jan. 4, 1973; T.D. 8387, 56 FR 67489, Dec. 31, 1991; T.D. 8446, 57 FR 53034, Nov. 6, 1992; T.D. 8677, 61 FR 33324, June 27, 1996; T.D. 8823, 64 FR 36100, July 2, 1999; T.D. 8950, 66 FR 33463, June 22, 2001; T.D. 9002, 67 FR 43544, June 28, 2002; 67 FR 77678, Dec. 19, 2002; T.D. 9715, 80 FR 17324, Apr. 1, 2015; T.D. 9977, 88 FR 44216, July 12, 2023; T.D. 10018, 89 FR 106876, Dec. 30, 2024]
Cross-references
Computed from the citations in the text of 26 CFR.
Code sections it cites
- § 6411 Tentative carryback and refund adjustments
- § 6213 Restrictions applicable to deficiencies; petition to Tax Court
- § 6425 Adjustment of overpayment of estimated income tax by corporation
Regulations it cites
- § 1.1502-77 Agent for the group.
- § 1.1502-77B Agent for the group applicable for consolidated return years beginning on or after June 28, 2002, and before April 1, 2015.
- § 1.1502-21 Net operating losses.
- § 301.6402-7 Claims for refund and applications for tentative carryback adjustments involving consolidated groups that include insolvent financial institutions.
- § 1.1502-1 Definitions.
- § 1.1502-76 Taxable year of members of group.
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. 10018 (89 FR 106876)
- Amended by T.D. 9977 (88 FR 44216)
- Amended by T.D. 9715 (80 FR 17324)
- Amended (67 FR 77678)
- Amended by T.D. 9002 (67 FR 43544)
- Amended by T.D. 8950 (66 FR 33463)
- Amended by T.D. 8823 (64 FR 36100)
- Amended by T.D. 8677 (61 FR 33324)
- Amended by T.D. 8446 (57 FR 53034)
- Amended by T.D. 8387 (56 FR 67489)
- Amended by T.D. 7246 (38 FR 767)
- Amended by T.D. 7059 (35 FR 14546)
- Issued by T.D. 6894 (31 FR 11794)
Where it sits in 26 CFR
- Subchapter A Income tax
- Part 1 Income taxes
- Administrative Provisions and Other Rules
Nearby sections
- § 1.1502-75 Filing of consolidated returns.
- § 1.1502-76 Taxable year of members of group.
- § 1.1502-77 Agent for the group.
- § 1.1502-78 Tentative carryback adjustments.
- § 1.1502-79 Separate return years.
- § 1.1502-80 Applicability of other provisions of law.
- § 1.1502-90 Table of contents.
- § 1.1502-91 Application of section 382 with respect to a consolidated group.