[Code of Federal Regulations]
[Title 26, Volume 1]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 26CFR1.171-3]

[Page 168-172]
 
                       TITLE 26--INTERNAL REVENUE
 
    CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY 
                               (CONTINUED)
 
PART 1_INCOME TAXES--Table of Contents
 
Sec. 1.171-3  Special rules for certain bonds.

    (a) Variable rate debt instruments. A holder determines bond premium 
on a variable rate debt instrument by reference to the stated redemption 
price at maturity of the equivalent fixed rate debt instrument 
constructed for the variable rate debt instrument. The

[[Page 169]]

holder also allocates any bond premium among the accrual periods by 
reference to the equivalent fixed rate debt instrument. The holder 
constructs the equivalent fixed rate debt instrument, as of the date the 
holder acquires the variable rate debt instrument, by using the 
principles of Sec. 1.1275-5(e). See paragraph (e) Example 1 of this 
section.
    (b) Inflation-indexed debt instruments. A holder determines bond 
premium on an inflation-indexed debt instrument by assuming that there 
will be no inflation or deflation over the remaining term of the 
instrument. The holder also allocates any bond premium among the accrual 
periods by assuming that there will be no inflation or deflation over 
the remaining term of the instrument. The bond premium allocable to an 
accrual period offsets qualified stated interest allocable to the 
period. Notwithstanding Sec. 1.171-2(a)(4), if the bond premium 
allocable to an accrual period exceeds the qualified stated interest 
allocable to the period, the excess is treated as a deflation adjustment 
under Sec. 1.1275-7(f)(1)(i). See Sec. 1.1275-7 for other rules 
relating to inflation-indexed debt instruments.
    (c) Yield and remaining payment schedule of certain bonds subject to 
contingencies--(1) Applicability. This paragraph (c) provides rules that 
apply in determining the yield and remaining payment schedule of certain 
bonds that provide for an alternative payment schedule (or schedules) 
applicable upon the occurrence of a contingency (or contingencies). This 
paragraph (c) applies, however, only if the timing and amounts of the 
payments that comprise each payment schedule are known as of the date 
the holder acquires the bond (the acquisition date) and the bond is 
subject to paragraph (c)(2), (3), or (4) of this section. A bond does 
not provide for an alternative payment schedule merely because there is 
a possibility of impairment of a payment (or payments) by insolvency, 
default, or similar circumstances. See Sec. 1.1275-4 for the treatment 
of a bond that provides for a contingency that is not described in this 
paragraph (c).
    (2) Remaining payment schedule that is significantly more likely 
than not to occur. If, based on all the facts and circumstances as of 
the acquisition date, a single remaining payment schedule for a bond is 
significantly more likely than not to occur, this remaining payment 
schedule is used to determine and amortize bond premium under Sec. Sec. 
1.171-1 and 1.171-2.
    (3) Mandatory sinking fund provision. Notwithstanding paragraph 
(c)(2) of this section, if a bond is subject to a mandatory sinking fund 
provision described in Sec. 1.1272-1(c)(3), the provision is ignored 
for purposes of determining and amortizing bond premium under Sec. Sec. 
1.171-1 and 1.171-2.
    (4) Treatment of certain options--(i) Applicability. Notwithstanding 
paragraphs (c)(2) and (3) of this section, the rules of this paragraph 
(c)(4) determine the remaining payment schedule of a bond that provides 
the holder or issuer with an unconditional option or options, 
exercisable on one or more dates during the remaining term of the bond, 
to alter the bond's remaining payment schedule.
    (ii) Operating rules. A holder determines the remaining payment 
schedule of a bond by assuming that each option will (or will not) be 
exercised under the following rules:
    (A) Issuer options. In general, the issuer is deemed to exercise or 
not exercise an option or combination of options in the manner that 
minimizes the holder's yield on the obligation. However, the issuer of a 
taxable bond is deemed to exercise or not exercise a call option or 
combination of call options in the manner that maximizes the holder's 
yield on the bond.
    (B) Holder options. A holder is deemed to exercise or not exercise 
an option or combination of options in the manner that maximizes the 
holder's yield on the bond.
    (C) Multiple options. If both the issuer and the holder have 
options, the rules of paragraphs (c)(4)(ii)(A) and (B) of this section 
are applied to the options in the order that they may be exercised. 
Thus, the deemed exercise of one option may eliminate other options that 
are later in time.
    (5) Subsequent adjustments--(i) In general. Except as provided in 
paragraph (c)(5)(ii) of this section, if a contingency described in this 
paragraph (c)

[[Page 170]]

(including the exercise of an option described in paragraph (c)(4) of 
this section) actually occurs or does not occur, contrary to the 
assumption made pursuant to paragraph (c) of this section (a change in 
circumstances), then solely for purposes of section 171, the bond is 
treated as retired and reacquired by the holder on the date of the 
change in circumstances for an amount equal to the adjusted acquisition 
price of the bond as of that date. If, however, the change in 
circumstances results in a substantially contemporaneous pro-rata 
prepayment as defined in Sec. 1.1275-2(f)(2), the pro-rata prepayment 
is treated as a payment in retirement of a portion of the bond. See 
paragraph (e) Example 2 of this section.
    (ii) Bond premium deduction on the issuer's call of a taxable bond. 
If a change in circumstances results from an issuer's call of a taxable 
bond or a partial call that is a pro-rata prepayment, the holder may 
deduct as bond premium an amount equal to the excess, if any, of the 
holder's adjusted acquisition price of the bond over the greater of--
    (A) The amount received on redemption; and
    (B) The amounts that would have been payable under the bond (other 
than payments of qualified stated interest) if no change in 
circumstances had occurred.
    (d) Remote and incidental contingencies. For purposes of determining 
and amortizing bond premium, if a bond provides for a contingency that 
is remote or incidental (within the meaning of Sec. 1.1275-2(h)), the 
holder takes the contingency into account under the rules for remote and 
incidental contingencies in Sec. 1.1275-2(h).
    (e) Examples. The following examples illustrate the rules of this 
section. Each example assumes the holder uses the calendar year as its 
taxable year and has elected to amortize bond premium, effective for all 
relevant taxable years. In addition, each example assumes a 30-day month 
and 360-day year. Although, for purposes of simplicity, the yield as 
stated is rounded to two decimal places, the computations do not reflect 
this rounding convention. The examples are as follows:

    Example 1. Variable rate debt instrument--(i) Facts. On March 1, 
1999, E purchases for $110,000 a taxable bond maturing on March 1, 2007, 
with a stated principal amount of $100,000, payable at maturity. The 
bond provides for unconditional payments of interest on March 1 of each 
year based on the percentage appreciation of a nationally-known 
commodity index. On March 1, 1999, it is reasonably expected that the 
bond will yield 12 percent, compounded annually. E uses the cash 
receipts and disbursements method of accounting, and E decides to use 
annual accrual periods ending on March 1 of each year. Assume that the 
bond is a variable rate debt instrument under Sec. 1.1275-5.
    (ii) Amount of bond premium. Because the bond is a variable rate 
debt instrument, E determines and amortizes its bond premium by 
reference to the equivalent fixed rate debt instrument constructed for 
the bond as of March 1, 1999. Because the bond provides for interest at 
a single objective rate that is reasonably expected to yield 12 percent, 
compounded annually, the equivalent fixed rate debt instrument for the 
bond is an eight-year bond with a principal amount of $100,000, payable 
at maturity. It provides for annual payments of interest of $12,000. E's 
basis in the equivalent fixed rate debt instrument is $110,000. The sum 
of all amounts payable on the equivalent fixed rate debt instrument 
(other than payments of qualified stated interest) is $100,000. Under 
Sec. 1.171-1, the amount of bond premium is $10,000 ($110,000 -
$100,000).
    (iii) Bond premium allocable to each accrual period. E allocates 
bond premium to the remaining accrual periods by reference to the 
payment schedule on the equivalent fixed rate debt instrument. Based on 
the payment schedule of the equivalent fixed rate debt instrument and 
E's basis in the bond, E's yield is 10.12 percent, compounded annually. 
The bond premium allocable to the accrual period ending on March 1, 
2000, is the excess of the qualified stated interest allocable to the 
period for the equivalent fixed rate debt instrument ($12,000) over the 
product of the adjusted acquisition price at the beginning of the period 
($110,000) and E's yield (10.12 percent, compounded annually). 
Therefore, the bond premium allocable to the accrual period is $870.71 
($12,000-$11,129.29). The bond premium allocable to all the accrual 
periods is listed in the following schedule:

------------------------------------------------------------------------
                                                Adjusted
                                               acquisition     Premium
           Accrual period ending                price at      allocable
                                              beginning of    to accrual
                                             accrual period     period
------------------------------------------------------------------------
3/1/00.....................................     $110,000.00      $870.71
3/1/01.....................................      109,129.29       958.81
3/1/02.....................................      108,170.48     1,055.82
3/1/03.....................................      107,114.66     1,162.64
3/1/04.....................................      105,952.02     1,280.27
3/1/05.....................................      104,671.75     1,409.80
3/1/06.....................................      103,261.95     1,552.44

[[Page 171]]


3/1/07.....................................      101,709.51     1,709.51
                                            -----------------
                                             ..............    10,000.00
------------------------------------------------------------------------

    (iv) Qualified stated interest for each accrual period. Assume the 
bond actually pays the following amounts of qualified stated interest:

------------------------------------------------------------------------
                                                              Qualified
                   Accrual period ending                        stated
                                                               interest
------------------------------------------------------------------------
3/1/00.....................................................    $2,000.00
3/1/01.....................................................         0.00
3/1/02.....................................................         0.00
3/1/03.....................................................    10,000.00
3/1/04.....................................................     8,000.00
3/1/05.....................................................    12,000.00
3/1/06.....................................................    15,000.00
3/1/07.....................................................     8,500.00
------------------------------------------------------------------------

    (v) Premium used to offset interest. E's interest income for each 
accrual period is determined by offsetting the qualified stated interest 
allocable to the period with the bond premium allocable to the period. 
For the accrual period ending on March 1, 2000, E includes in income 
$1,129.29, the qualified stated interest allocable to the period 
($2,000) offset with the bond premium allocable to the period ($870.71). 
For the accrual period ending on March 1, 2001, the bond premium 
allocable to the accrual period ($958.81) exceeds the qualified stated 
interest allocable to the period ($0) and, therefore, E does not have 
interest income for this accrual period. However, under Sec. 1.171-
2(a)(4)(i)(A), E may deduct as bond premium $958.81, the excess of the 
bond premium allocable to the accrual period ($958.81) over the 
qualified stated interest allocable to the accrual period ($0). For the 
accrual period ending on March 1, 2002, the bond premium allocable to 
the accrual period ($1,055.82) exceeds the qualified stated interest 
allocable to the accrual period ($0) and, therefore, E does not have 
interest income for the accrual period. Under Sec. 1.171-2(a)(4)(i)(A), 
E's deduction for bond premium for the accrual period is limited to 
$170.48, the excess of E's total interest inclusions on the bond in 
prior accrual periods ($1,129.29) over the total amount treated by E as 
a bond premium deduction in prior accrual periods ($958.81). Under Sec. 
1.171-2(a)(4)(i)(B), E must carry forward the remaining $885.34 of bond 
premium allocable to the period ending March 1, 2002, and treat it as 
bond premium allocable to the period ending March 1, 2003. The amount E 
includes in income for each accrual period is shown in the following 
schedule:

----------------------------------------------------------------------------------------------------------------
                                                               Premium
                                                 Qualified    allocable     Interest     Premium       Premium
             Accrual period ending                 stated     to accrual     income     deduction   carryforward
                                                  interest      period
----------------------------------------------------------------------------------------------------------------
3/1/00........................................    $2,000.00      $870.71    $1,129.29  ...........  ............
3/1/01........................................         0.00       958.81         0.00      $958.81  ............
3/1/02........................................         0.00     1,055.82         0.00       170.48       $885.34
3/1/03........................................    10,000.00     1,162.64     7,951.93  ...........  ............
3/1/04........................................     8,000.00     1,280.27     6,719.73  ...........  ............
3/1/05........................................    12,000.00     1,409.80    10,590.20  ...........  ............
3/1/06........................................    15,000.00     1,552.44    13,447.56  ...........  ............
3/1/07........................................     8,500.00     1,709.51     6,790.49
                                                            -------------
                                                ...........    10,000.00  ...........  ...........  ............
----------------------------------------------------------------------------------------------------------------

    Example 2. Partial call that results in a pro-rata prepayment--(i) 
Facts. On April 1, 1999, M purchases for $110,000 N's taxable bond 
maturing on April 1, 2006, with a stated principal amount of $100,000, 
payable at maturity. The bond provides for unconditional payments of 
interest of $10,000, payable on April 1 of each year. N has the option 
to call all or part of the bond on April 1, 2001, at a 5 percent premium 
over the principal amount. M uses the cash receipts and disbursements 
method of accounting.
    (ii) Determination of yield and the remaining payment schedule. M's 
yield determined without regard to the call option is 8.07 percent, 
compounded annually. M's yield determined by assuming N exercises its 
call option is 6.89 percent, compounded annually. Under paragraph 
(c)(4)(ii)(A) of this section, it is assumed N will not exercise the 
call option because exercising the option would minimize M's yield. 
Thus, for purposes of determining and amortizing bond premium, the bond 
is assumed to be a seven-year bond with a single principal payment at 
maturity of $100,000.
    (iii) Amount of bond premium. The interest payments on the bond are 
qualified stated interest. Therefore, the sum of all amounts payable on 
the bond (other than the interest payments) is $100,000. Under Sec. 
1.171-1, the amount of bond premium is $10,000 ($110,000-$100,000).
    (iv) Bond premium allocable to the first two accrual periods. For 
the accrual period ending on April 1, 2000, M includes in income

[[Page 172]]

$8,881.83, the qualified stated interest allocable to the period 
($10,000) offset with bond premium allocable to the period ($1,118.17). 
The adjusted acquisition price on April 1, 2000, is $108,881.83 
($110,000-$1,118.17). For the accrual period ending on April 1, 2001, M 
includes in income $8,791.54, the qualified stated interest allocable to 
the period ($10,000) offset with bond premium allocable to the period 
($1,208.46). The adjusted acquisition price on April 1, 2001, is 
$107,673.37 ($108,881.83-$1,208.46).
    (v) Partial call. Assume N calls one-half of M's bond for $52,500 on 
April 1, 2001. Because it was assumed the call would not be exercised, 
the call is a change in circumstances. However, the partial call is also 
a pro-rata prepayment within the meaning of Sec. 1.1275-2(f)(2). As a 
result, the call is treated as a retirement of one-half of the bond. 
Under paragraph (c)(5)(ii) of this section, M may deduct $1,336.68, the 
excess of its adjusted acquisition price in the retired portion of the 
bond ($107,673.37/2, or $53,836.68) over the amount received on 
redemption ($52,500). M's adjusted basis in the portion of the bond that 
remains outstanding is $53,836.68 ($107,673.37-$53,836.68).

[T.D. 8746, 62 FR 68180, Dec. 31, 1997, as amended by T.D. 8838, 64 FR 
48547, Sept. 7, 1999]