[Code of Federal Regulations]
[Title 26, Volume 8]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 26CFR1.668(b)-3A]

[Page 208-210]
 
                       TITLE 26--INTERNAL REVENUE
 
    CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY 
                               (CONTINUED)
 
PART 1_INCOME TAXES--Table of Contents
 
Sec. 1.668(b)-3A  Computation of the beneficiary's income and tax for 
a prior taxable year.

    (a) Basis for computation. (1) The beneficiary's income and tax paid 
for any prior taxable year for which a recomputation is involved under 
either the exact method or the short-cut method shall be determined by 
reference to the information required to be furnished by him under Sec. 
1.668(b)- 4A(a). The gross income, related deductions, and taxes paid 
for a prior taxable year of the beneficiary as finally determined shall 
be used for computation purposes. The term ``as finally determined'' has 
reference to the final status of the gross income, deductions, credits, 
and taxes of the taxable year after the expiration of the period of 
limitations or after completion of any court action regarding the tax 
for the taxable year.
    (2) If any computations rely on the beneficiary's return for a prior 
taxable year for which the applicable period of

[[Page 209]]

limitations on assessment under section 6501 has expired, and such 
return shows a mathematical error on its face which resulted in the 
wrong amount of tax being paid for such year, the determination of both 
the tax for such year computed with the inclusion of the section 666 
amount in the beneficiary's gross income and the tax for such year 
computed without including such amounts in such gross income shall be 
based upon the return after the correction of such mathematical errors, 
and the beneficiary shall be credited for the correct amount of tax that 
should have been properly paid.
    (b) Effect of allocation of undistributed net income on items based 
on amount of income and with respect to a net operating loss, a 
charitable contributions carryover, or a capital loss carryover. (1) In 
computing the tax for any taxable year under either the exact method or 
the short-cut method, any item which depends upon the amount of gross 
income, adjusted gross income, or taxable income shall be recomputed to 
take into consideration the amount of undistributed net income allocated 
to such year. For example, if $1,000 of undistributed net income is 
allocated to 1970, adjusted gross income for 1970 is increased from 
$5,000 to $6,000. The allowable 50 percent charitable deduction under 
section 170(b)(1)(A) is then increased and the amount of the 
nondeductible medical expenses under section 213 (3 percent of adjusted 
gross income) is also increased.
    (2) In computing the tax attributable to the undistributed net 
income deemed distributed to the beneficiary in any of his prior taxable 
years under either the exact method or the short-cut method, the effect 
of amounts of undistributed net income on a net operating loss carryback 
or carryover, a charitable contributions carryover, or a capital loss 
carryback or carryover, shall be taken into account. In determining the 
amount of tax attributable to such deemed distribution, a computation 
shall also be made for any taxable year which is affected by a net 
operating loss carryback or carryover, by a charitable contributions 
carryover, or by a capital loss carryback or carryover determined by 
reference to the taxable year to which amounts are allocated under 
either method and which carryback or carryover is reduced or increased 
by such amounts so allocated. The provisions of this subparagraph may be 
illustrated by the following example:

    Example. In 1978, a trust makes an accumulation distribution of 
undistributed net income to X of $50,000 that is deemed under section 
666(a) to have been distributed in 1972. X had income in 1972, 1973, and 
1973, and had a net operating loss in 1975 that offset his taxable 
income (computed as provided in Sec. 1.172-5) for those years, as 
follows:

------------------------------------------------------------------------
                                                      Income after net
                                     Actual income     operating loss
               Year                    (or loss)          carryback
                                                        (n.o.l.c.b.)
------------------------------------------------------------------------
1972..............................     $10,000                  $0
1973..............................      50,000                   0
1974..............................      50,000              10,000
1975..............................   (100,000)                   0
------------------------------------------------------------------------

    As a result of the allocation of the 1973 accumulation distribution 
to 1972, X's income for 1972, 1973, 1974, and 1975, after taking into 
account the 1975 n.o.l.c.b., is deemed to be as follows:

------------------------------------------------------------------------
                                           Income deemed to have been
                                          earned after consideration of
                 Year                     n.o.l.c.b., and accumulation
                                                  distribution
------------------------------------------------------------------------
1972..................................  0 ($10,000+$50,000-$60,000
                                         n.o.l.c.b.).
1973..................................  $10,000 ($50,000-$40,000 balance
                                         of n.o.l.c.b.).
1974..................................  $50,000.
1975..................................  0.
------------------------------------------------------------------------

    Therefore, the tax on the 1978 accumulation distribution to X is the 
tax X would have paid in 1973 and 1974 had he had the above income in 
such years.

    (c) Averaging. A beneficiary who uses the exact method may recompute 
his tax for a prior taxable year by using income averaging for all of 
his actual income for that year, plus the amount deemed distributed in 
that year under section 666, even though he may not have actually used 
section 1301 to determine his income tax for such taxable year. For 
purposes of such recomputation, the beneficiary's income for all other 
taxable years involved must include any amounts deemed distributed in 
such years from the current and all prior accumulation distributions. 
See Sec. 1.668(b)-4A(c)(3) for additional information requirements. The 
beneficiary may not apply the provisions of this paragraph to a taxable

[[Page 210]]

year in which an amount is deemed to be income by reason of Sec. 
1.666(d)-1A(b). The accumulation distribution itself is not eligible for 
income averaging in the years in which it is paid, credited, or required 
to be distributed. See section 1302 (a)(2)(B) and the regulations 
thereunder.

[T.D. 7204, 37 FR 17151, Aug. 25, 1972]