[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: 26CFR1.50A-2]

[Page 399-401]
 
                       TITLE 26--INTERNAL REVENUE
 
     CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY
 
PART 1--INCOME TAXES--Table of Contents
 
Sec. 1.50A-2  Carryback and carryover of unused credit.

    (a) Allowance of unused credit as carryback or carryover--(1) In 
general. Section 50A(b)(1) provides for carrybacks and carryovers of any 
unused credit. An unused credit is the excess of the credit earned for 
the taxable year (as determined under paragraph (a) of Sec. 1.50A-1) 
over the limitation based on amount of tax for such taxable year (as 
determined under paragraph (b) of Sec. 1.50A-1). Subject to the 
limitation contained in paragraph (b) of this section, an unused credit 
shall be added to the amount allowable as a credit under section 40 for 
the years to which the unused credit can be carried. The year with 
respect to which an unused credit arises shall be referred to in this 
section as the ``unused credit year.''
    (2) Taxable years to which unused credit may be carried. An unused 
credit shall be a work incentive program (WIN) credit carryback to each 
of the 3 taxable years preceding the unused credit year and a WIN credit 
carryover to each of the 7 taxable years succeeding the unused credit 
year, except that an unused credit shall be a carryback only to taxable 
years beginning after December 31, 1971. An unused credit must be 
carried first to the earliest of the taxable years to which it may be 
carried, and then to each of the other taxable years (in order of time) 
to the extent that the unused credit may not be added (because of the 
limitation contained in paragraph (b) of this section) to the amount 
allowable as a credit under section 40 for a prior taxable year.
    (b) Limitation on allowance of unused credit. The amount of the 
unused credit from any particular unused credit year which may be added 
to the amount allowable as a credit under section 40 for any of the 
preceding or succeeding taxable years to which such credit may be 
carried shall not exceed the amount by which the limitation based on 
amount of tax for such preceding or succeeding taxable year exceeds the 
sum of (1) the credit earned for such preceding or succeeding year, and 
(2) other unused credits carried to such preceding or succeeding year 
which are attributable to unused credit years prior to the particular 
unused credit year.
    (c) Corporate acquisitions. For the carryover of unused credits in 
the case of certain corporate acquisitions, see section 381(c)(24) and 
the regulations thereunder. [Sec. 1.381(c)(24)-1]
    (d) Periods of less than 12 months. A fractional part of a year 
which is considered as a taxable year under sections 441(b) and 
7701(a)(23) shall be treated as a preceding or a succeeding taxable year 
for the purpose of determining under section 50A(b) and this section the 
taxable years to which an unused credit may be carried.

[[Page 400]]

    (e) Example. The provisions of paragraphs (a) through (d) of this 
section may be illustrated by the following example:

    Example. Corporation X files its income tax return on the basis of 
the calendar year. X's credit earned and its limitation based on amount 
of tax for each of its taxable years 1972 through 1978 are as follows:

------------------------------------------------------------------------
                                              Credit    Limitation based
                                              earned    on amount of tax
------------------------------------------------------------------------
1972......................................    $175,000          $200,000
1973......................................     250,000           160,000
1974......................................     200,000           210,000
1975......................................     210,000           230,000
1976......................................     220,000           260,000
1977......................................     260,000           220,000
1978......................................     270,000           280,000
------------------------------------------------------------------------

    (i) Corporation X's credit earned for 1972, $175,000, is allowable 
in full as a credit under section 40 for 1972 since such amount is less 
than the limitation based on amount of tax for such year, $200,000. 
Since the limitation based on amount of tax for 1973 is $160,000, only 
$160,000 of the $250,000 credit earned for such year is allowable under 
section 40 as a credit for 1973. The unused credit for 1973 of $90,000 
($250,000 less $160,000) is a WIN credit carryback to 1972 and a WIN 
credit carryover to 1974 and subsequent years up to and including 1980. 
The portion of the $90,000 unused credit which shall be added to the 
amount allowable as a credit under section 40 for 1972 and 1974 and 
subsequent years is computed as follows:

    (a) 1972. The portion of the unused credit for 1973 ($90,000) which 
is allowable as a credit for 1972 is $25,000. This amount shall be added 
to the amount allowable as a credit for 1972. The balance of the unused 
credit for 1973 to be carried to 1974 is $65,000. These amounts are 
computed as follows:

Carryback to 1972...........................................     $90,000
1972 limitation based on tax....................    $200,000
Less: Credit earned for 1972........    $175,000
Unused credits attributable to years           0
 preceding 1973.....................
                                     ------------
                                                     175,000
                                                 ------------
Limit on amount of 1973 unused credit which may be added as       25,000
 a credit for 1972..........................................
                                                             -----------
    Balance of 1973 unused credit to be carried to 1974.....      65,000



    (b) 1974. The portion of the balance of the unused credit for 1973 
($65,000) allowable as a credit for 1974 is $10,000. This amount shall 
be added to the amount allowable as a credit for 1974. The balance of 
the unused credit for 1973 to be carried to 1975 is $55,000. These 
amounts are computed as follows:

Carryover to 1974..........................................      $65,000
1974 limitation based on tax..................     $210,000
Less: Credit earned for 1974.....     $200,000
Unused credits attributable to               0
 years preceding 1973............
                                      --------      200,000
                                               -------------
Limit on amount of 1973 unused credit which may be added as       10,000
 a credit for 1974.........................................
                                                            ------------
    Balance of 1973 unused credit to be carried to 1975....       55,000



    (c) 1975. The portion of the balance of the unused credit for 1973 
($55,000) allowable as a credit for 1975 is $20,000. This amount shall 
be added to the amount allowable as a credit for 1975. The balance of 
the unused credit for 1973 to be carried to 1976 is $35,000. These 
amounts are computed as follows:

Carryover to 1975..........................................      $55,000
1975 limitation based on tax..................     $230,000
Less: Credit earned for 1975.....     $210,000
Unused credits attributable to               0
 years preceding 1973............
                                  -------------
                                                    210,000
                                               -------------
Limit on amount of 1973 unused credit which may be added as      $20,000
 a credit for 1975.........................................
                                                            ------------
    Balance of 1973 unused credit to be carried to 1976....       35,000



    (d) 1976. The entire balance of the unused credit for 1973 ($35,000) 
is allowable as a credit for 1976, since the limitation based on amount 
of tax for 1976 exceeds the sum of the credit earned for 1976 and unused 
credits attributable to years prior to 1973 by an amount in excess of 
$35,000. Since the balance of the unused credit for 1973 has been fully 
allowed, no portion thereof remains to be carried to subsequent taxable 
years. This is illustrated as follows:

Carryover to 1976..........................................      $35,000
1976 limitation based on tax..................     $260,000
Less: Credit earned for 1976.....     $220,000
Unused credits attributable to               0
 years preceding 1973............
                                  -------------
                                                    220,000
                                               -------------
Limit on amount of 1973 unused credit which may be added as       40,000
 a credit for 1976.........................................
                                                            ------------
    Balance of 1973 unused credit to be carried to 1977....            0



    (ii) Since the limitation based on amount of tax for 1977 is 
$220,000, only $220,000 of the

[[Page 401]]

$260,000 credit earned for such year is allowable as a credit for 1977. 
The unused credit for 1977 of $40,000 ($260,000 less $220,000) is a WIN 
credit carryback to 1974, 1975, and 1976 and a WIN credit carryover to 
1978 and subsequent years. The portions of the $40,000 unused credit 
which shall be added to the amount allowable as a credit for such years 
are computed as follows:

    (a) 1974. The portion of the unused credit for 1977 ($40,000) 
allowable as a credit for 1974 is zero. The balance of the unused credit 
for 1977 to be carried to 1975 is $40,000. These amounts are computed as 
follows:

Carryback to 1974..........................................      $40,000
1974 limitation based on tax..................     $210,000
Less: Credit earned for 1974.....     $200,000
Unused credits attributable to          10,000
 years preceding 1977 (unused
 credit from 1973)...............
                                  -------------
                                                   $210,000
                                               --------------
Limit on amount of 1977 unused credit which may be added as            0
 a credit for 1974.........................................
                                                            ------------
    Balance of 1977 unused credit to be carried to 1975....       40,000



    (b) 1975. The portion of the unused credit for 1977 ($40,000) 
allowable as a credit for 1975 is zero. The balance of the unused credit 
for 1977 to be carried to 1976 is $40,000. These amounts are computed as 
follows:

Carryback to 1975..........................................      $40,000
1975 limitation based on tax..................     $230,000
Less: Credit earned for 1975.....     $210,000
Unused credits attributable to          20,000
 years preceding 1977 (unused
 credit from 1973)...............
                                      --------      230,000
                                               -------------
Limit on amount of 1977 unused credit which may be added as            0
 a credit for 1975.........................................
                                                            ------------
  Balance of 1977 unused credit to be carried to 1976......       40,000



    (c) 1976. The portion of the unused credit for 1977 ($40,000) 
allowable as a credit for 1976 is $5,000. This amount shall be added to 
the amount allowable as a credit for 1976. The balance of the unused 
credit for 1977 to be carried to 1978 is $35,000. These amounts are 
computed as follows:




Carryback to 1976..........................................      $40,000
1976 limitation based on tax..................     $260,000
Less: Credit earned for 1976.....     $220,000
Unused credits attributable to          35,000
 years preceding 1977 (unused
 credit from 1973)...............
                                      --------      255,000
                                               -------------
Limit on amount of 1977 unused credit which may be added as        5,000
 a credit for 1976.........................................
                                                            ------------
    Balance of 1977 unused credit to be carried to 1978....       35,000



    (d) 1978. The portion of the balance of the unused credit for 1977 
($35,000) allowable as a credit for 1978 is $10,000. This amount shall 
be added to the amount allowable as a credit for 1978. The balance of 
the unused credit for 1977 to be carried to 1979 and subsequent years is 
$25,000. These amounts are computed as follows:

Carryover to 1978..........................................      $35,000
1978 limitation based on tax..................     $280,000
Less: Credit earned for 1978.....     $270,000
Unused credits attributable to               0
 years preceding 1977............
                                      --------     $270,000
                                               -------------
Limit on amount of 1977 unused credit which may be added as      $10,000
 a credit for 1978.........................................
                                                            ------------
    Balance of 1977 unused credit to be carried to 1979....       25,000


    (f) Electing small business corporation. An unused credit of a 
corporation which arises in an unused credit year for which the 
corporation is not an electing small business corporation (as defined in 
section 1371(b)) and which is a carryback or carryover to a taxable year 
for which the corporation is an electing small business corporation 
shall not be added to the amount allowable as a credit under section 40 
to the shareholders of such corporation for any taxable year. However, a 
taxable year for which the corporation is an electing small business 
corporation shall be counted as a taxable year for purposes of 
determining the taxable years to which such unused credit may be 
carried.

[38 FR 6153, Mar. 7, 1973]

[[Page 402]]