[Code of Federal Regulations]
[Title 26, Volume 1]
[Revised as of April 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 26CFR1.46-2]

[Page 233-236]
 
                       TITLE 26--INTERNAL REVENUE
 
     CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY
 
PART 1--INCOME TAXES--Table of Contents
 
Sec. 1.46-2  Carryback and carryover of unused credit.

    (a) Effective date. This section is effective for taxable years 
beginning after December 31, 1975. For taxable years beginning before 
January 1, 1976, see 26 CFR 1.46-2 (Rev. as of April 1, 1979).
    (b) In general. Under section 46(b)(1), unused credit may be carried 
back and carried over. Carrybacks and carryovers of unused credit are 
taken into account in determining the amount of credit available and the 
credit allowed for the taxable years to which they may be carried. In 
general, the application of the rules of this section to regular and 
ESOP credits are separate from their application to nonrefundable energy 
credits. For example, the limitations on carrybacks and carryovers of 
unused nonrefundable energy credit under section 46(b) (2) and (3), 
respectively, differ in amount from the limitations on the regular and 
ESOP credits because the tax liability limitations for those credits 
differ. See Sec. 1.46-1(h). For a further example, see the special 
ordering rule in Sec. 1.46-1(m). Section 46(b) does not apply to the 
refundable energy credit.
    (c) Unused credit. If carryovers and credit earned (as defined in 
Sec. 1.46-1(c)(1)) exceed the applicable tax liability limitation, the 
excess attributable to credit earned is an unused credit. The taxable 
year in which an unused credit arises is referred to as the ``unused 
credit year''.
    (d) Taxable years to which unused credit may be carried. An unused 
credit is a carryback to each of the 3 taxable years preceding the 
unused credit year and a carryover to each of the 7 taxable years 
succeeding the unused credit year. An unused credit must be carried 
first to the earliest of those 10 taxable years. An unused credit then 
must be carried to each of the other 9 taxable years (in order of time) 
to the extent that the unused credit was not absorbed during a prior 
taxable year because of the limitations under section 46(b) (2) and (3).
    (e) Special rule for pre-1971 years--(1) In general. For unused 
credit years ending before January 1, 1971, unused credit is allowed a 
10-year carryover rather than the 7-year carryover. The principles of 
paragraph (d) of this section apply to this 10-year carryover.
    (2) Cross reference. For limitations on the taxable years to which 
unused credit from pre-1971 credit years may be carried, see paragraph 
(g) of this section.
    (f) Limitations on carrybacks. Under the FIFO rule to section 
46(a)(1), carryovers and credit earned are applied against the tax 
liability limitation before carrybacks. Thus, carrybacks to a taxable 
year may not exceed the amount by which the applicable tax liability 
limitation for that year exceeds the sum of carryovers to and credit 
earned for that year. Carrybacks from an unused credit year are applied 
against tax liability before carrybacks from a later unused credit year. 
To the extent an unused credit cannot be carried back to a particular 
preceding taxable year, the unused

[[Page 234]]

credit must be carried to the next succeeding taxable year to which it 
may be carried.
    (g) Limitations on carryovers--(1) General rule. Carryovers to a 
taxable year may not exceed the applicable tax liability limitation for 
that year. Carryovers from an unused credit year are applied before 
carryovers from a later unused credit year.
    (2) Exception. A 10-year carryover from a pre-1971 unused credit 
year may, under certain circumstances, be postponed to prevent a later-
earned 7-year carryover from expiring. This exception does not extend 
the 10-year carryover period for pre-1971 unused credit. See section 
46(b)(1)(D).
    (h) Examples. The following examples illustrate paragraphs (a) 
through (g) of this section.

    Example 1. (a) Corporation M is organized on January 1, 1977 and 
files its income tax return on a calendar year basis. Assume the facts 
set forth in columns (1) and (2) of the following table. The 
determination of the regular credit allowed for each of the taxable 
years indicated is set forth in the remaining portions of the table.

----------------------------------------------------------------------------------------------------------------
                                    (1)        (2)        (3)         (4)         (5)         (6)         (7)
                                --------------------------------------------------------------------------------
                                                                      Tax
                                                                   liability
                                                                   limitation    Credit    Remaining    Unused
                                   Credit      Tax                 (remaining   allowed       tax       credit
                                 available  liability   Percent    from col.   (lower of   liability   ((1)-(5))
                                                                     (6) on      (1) or   limitation  or (amount
                                                                   preceding      (4))     ((4)-(5))   absorbed)
                                                                     line)
----------------------------------------------------------------------------------------------------------------
1977:
  A. Credit earned.............    $20,000    $45,000         50    $35,000      $20,000     $15,000          0
  B. Carryback from 1978.......    *15,000  .........  .........    [15,000]      15,000  ..........  ..........
1978:
  A. Credit earned.............     80,000     55,000         50     40,000       40,000           0    $20,000
    Carryback to 1977..........  .........  .........  .........  ...........  .........  ..........   (*15,000)
    Carryover to 1979..........  .........  .........  .........  ...........  .........  ..........    (*5,000)
1979:
  A. Carryover from 1978.......     *5,000     50,000         60     40,000        6,000      35,000  ..........
  B. Credit earned.............     50,000  .........  .........    [35,000]      35,000           0     15,000
    Carryover to 1980..........  .........  .........  .........  ...........  .........  ..........   (*15,000)
1980:
  A. Carryover from 1979.......    *15,000     55,000         70     46,000       15,000      31,000  ..........
  B. Credit earned.............     25,000  .........  .........    [31,000]      25,000       6,000          0
----------------------------------------------------------------------------------------------------------------
*For line ``A'' each year: Lesser of (1) tax liability or (2) $25,000 + (percentage in col. (3) x [col. (2) -
  $25,000]). See, Sec.  1.46-1(h). For other lines: Amount in col. (6) on preceding line.

    Example 2. (a) Assume the same facts as in Example 1 except for 1979 
M earns a $35,000 nonrefundable energy credit. The following table shows 
the determinations for each year.

--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                 (1)              (2)             (3)         (4)         (5)         (6)         (7)
                                                             -------------------------------------------------------------------------------------------
                                                                             Tax liability                    Tax
                                                                        ----------------------             liability
                                                                                                          limitation*    Credit    Remaining    Unused
                                                                Credit                 (b)                 (remaining   allowed       tax       credit
                                                              available     (a)       Energy    Percent    from col.   (lower of   liability   ((1)-(5))
                                                                          Regular    ((2)(a)-                (6) on      (1) or   limitation  or (amount
                                                                                     (5)(R))               preceding      (4))     ((4)-(5))   absorbed)
                                                                                                             line)
--------------------------------------------------------------------------------------------------------------------------------------------------------
1977:
  Regular:
    A. Credit earned........................................    $20,000    $45,000  .........         50    $35,000     $20,000R     $15,000          0
    B. Carryback from 1978..................................    *15,000  .........  .........  .........    [15,000]     15,000R           0  ..........
1978:
  Regular:
    A. Credit earned........................................     60,000     55,000  .........         50     40,000      40,000R           0    $20,000
      Carryback to 1977.....................................  .........  .........  .........  .........  ...........  .........  ..........   (*15,000)
      Carryover to 1979.....................................  .........  .........  .........  .........  ...........  .........  ..........    (*5,000)
  Energy:
    A. Carryback from 1979..................................    *15,000  .........    $15,000        100     15,000      15,000E           0  ..........
1979:
  Regular:
    A. Carryover from 1978..................................     *5,000     50,000  .........         60     40,000       5,000R      35,000  ..........

[[Page 235]]


    B. Credit earned........................................     50,000  .........  .........  .........    [35,000]     35,000R           0     15,000
      Carryover to 1980.....................................  .........  .........  .........  .........  ...........  .........  ..........   (*15,000)
  Energy:
    A. Credit earned........................................     35,000  .........     10,000        100     10,000      10,000E           0     25,000
      Carryback to 1978.....................................  .........  .........  .........  .........  ...........  .........  ..........   (*15,000)
      Carryover to 1980.....................................  .........  .........  .........  .........  ...........  .........  ..........   (*10,000)
1980:
  Regular:
    A. Carryover from 1979..................................    *15,000     55,000  .........         70     46,000      15,000R      31,000  ..........
    B. Credit earned........................................     25,000  .........  .........  .........    [31,000]     25,000R       6,000          0
  Energy:
    A. Carryover from 1979..................................    *10,000  .........     15,000        100     15,000      10,000E       5,000  ..........
--------------------------------------------------------------------------------------------------------------------------------------------------------
*See footnote to the chart in Example 1.

    (b) Although, in general, a nonrefundable energy credit may be 
carried back to taxable years ending before October 1, 1978, in this 
example the unused nonrefundable energy credit from 1979 may not be 
absorbed in 1977. The 1977 tax liability limitation for the 
nonrefundable energy credit is the same as it is for the regular credit, 
reduced by regular credit previously allowed for 1977. See Secs. 1.46-
1(h)(3) and 1.46-1(m).
    Example 3. (a) Assume the same facts as in Example 2 except M has 
regular credit of $37,000 for 1981 and M's tax liability for 1981 is 
$32,500. The determinations for 1980 and 1981 are set forth in the 
following table.

--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                 (1)              (2)             (3)         (4)         (5)         (6)         (7)
                                                             -------------------------------------------------------------------------------------------
                                                                             Tax liability                    Tax
                                                                        ----------------------             liability
                                                                                                          limitation*    Credit    Remaining    Unused
                                                                Credit                 (b)                 (remaining   allowed       tax       credit
                                                              available     (a)       Energy    Percent    from col.   (lower of   liability   ((1)-(5))
                                                                          Regular     ((2)-                  (6) on      (1) or   limitation  or (amount
                                                                                     (5)(R))               preceding      (4))     ((4)-(5))   absorbed)
                                                                                                             line)
--------------------------------------------------------------------------------------------------------------------------------------------------------
1979 (restated):
  Energy:
    To be carried over......................................  .........  .........  .........  .........  ...........  .........  ..........    $10,000
      Carryover to 1980.....................................  .........  .........  .........  .........  ...........  .........  ..........    (*9,000)
      Carryover to 1981.....................................  .........  .........  .........  .........  ...........  .........  ..........    (*1,000)
1980 (restated):
  Regular:
    A. Carryover from 1979..................................    $15,000    $55,000  .........         70    $46,000     $15,000R     $31,000  ..........
    B. Credit earned........................................    *25,000  .........  .........  .........    [31,000]     25,000R       6,000          0
    C. Carryback from 1981..................................     *6,000  .........  .........  .........     [6,000]      6,000R           0  ..........
  Energy:
    A. Carryover from 1979..................................     *9,000  .........     $9,000        100      9,000       9,000E  ..........  ..........
1981: Regular:
    A. Credit earned........................................     37,000     32,500  .........         80     31,000      31,000R           0      6,000
      Carryback to 1980.....................................  .........  .........  .........  .........  ...........  .........  ..........    (*6,000)
  Energy:
    A. Carryover from 1979..................................     *1,000  .........      1,500        100      1,500       1,000E         500          0
--------------------------------------------------------------------------------------------------------------------------------------------------------
*See footnote to chart under Example 1.

    (b) Allowance of the regular carryback in 1980 from 1981 requires 
that the computations for 1980 be restated. The energy tax liability 
limitation for 1980 is reduced from $15,000 (as determined in Example 2) 
to $9,000. Thus, $1,000 of the $10,000 energy credit allowed for 1980 is 
displaced by the regular carryback. That amount may not be carried back 
because there is no remaining energy tax liability limitation for the 
prior 3 years

[[Page 236]]

(see table in Example 2). It may be carried over to 1981 and allowed in 
full in that year.

    (i) [Reserved]
    (j) Electing small business corporation. A shareholder of an 
electing small business corporation (as defined in section 1371(b)) may 
not take into account unused credit of the corporation attributable to 
unused credit years for which the corporation was not an electing small 
business corporation. However, a taxable year for which the corporation 
is an electing small business corporation is counted as a taxable year 
for determining the taxable years to which that unused credit may be 
carried.
    (k) Periods of less than 12 months. A fractional part of a year that 
is considered a taxable year under sections 441(b) and 7701(a)(23) is 
treated as a preceding or succeeding taxable year for determining under 
section 46(b) the taxable years to which an unused credit may be 
carried.
    (l) Corporate acquisitions. For carryover of unused credits in the 
case of certain corporate acquisitions, see section 381(c)(23).

(Secs. 7805 (68A Stat. 917, 26 U.S.C. 7805) and 38(b) (76 Stat. 962, 26 
U.S.C. 38))

[T.D. 7751, 46 FR 1679, Jan. 7, 1981]