[Code of Federal Regulations]
[Title 26, Volume 2]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 26CFR1.148-10]

[Page 733-738]
 
                       TITLE 26--INTERNAL REVENUE
 
    CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY 
                               (CONTINUED)
 
PART 1_INCOME TAXES--Table of Contents
 
Sec. 1.148-10  Anti-abuse rules and authority of Commissioner.

    (a) Abusive arbitrage device--(1) In general. Bonds of an issue are 
arbitrage bonds under section 148 if an abusive arbitrage device under 
paragraph (a)(2) of this section is used in connection with the issue. 
This paragraph (a) is to be applied and interpreted broadly to carry out 
the purposes of section 148, as further described in Sec. 1.148-0. 
Except as otherwise provided in paragraph (c) of this section, any 
action that is expressly permitted by section 148 or

[[Page 734]]

Sec. Sec. 1.148-1 through 1.148-11 is not an abusive arbitrage device 
(e.g., investment in higher yielding investments during a permitted 
temporary period under section 148(c)).
    (2) Abusive arbitrage device defined. Any action is an abusive 
arbitrage device if the action has the effect of--
    (i) Enabling the issuer to exploit the difference between tax-exempt 
and taxable interest rates to obtain a material financial advantage; and
    (ii) Overburdening the tax-exempt bond market.
    (3) Exploitation of tax-exempt interest rates. An action may exploit 
tax-exempt interest rates under paragraph (a)(2) of this section as a 
result of an investment of any portion of the gross proceeds of an issue 
over any period of time, notwithstanding that, in the aggregate, the 
gross proceeds of the issue are not invested in higher yielding 
investments over the term of the issue.
    (4) Overburdening the tax-exempt market. An action overburdens the 
tax-exempt bond market under paragraph (a)(2)(ii) of this section if it 
results in issuing more bonds, issuing bonds earlier, or allowing bonds 
to remain outstanding longer than is otherwise reasonably necessary to 
accomplish the governmental purposes of the bonds, based on all the 
facts and circumstances. Whether an action is reasonably necessary to 
accomplish the governmental purposes of the bonds depends on whether the 
primary purpose of the transaction is a bona fide governmental purpose 
(e.g., an issue of refunding bonds to achieve a debt service 
restructuring that would be issued independent of any arbitrage 
benefit). An important factor bearing on this determination is whether 
the action would reasonably be taken to accomplish the governmental 
purpose of the issue if the interest on the issue were not excludable 
from gross income under section 103(a) (assuming that the hypothetical 
taxable interest rate would be the same as the actual tax-exempt 
interest rate). Factors evidencing an overissuance include the issuance 
of an issue the proceeds of which are reasonably expected to exceed by 
more than a minor portion the amount necessary to accomplish the 
governmental purposes of the issue, or an issue the proceeds of which 
are, in fact, substantially in excess of the amount of sale proceeds 
allocated to expenditures for the governmental purposes of the issue. 
One factor evidencing an early issuance is the issuance of bonds that do 
not qualify for a temporary period under Sec. 1.148-2(e)(2), (e)(3), or 
(e)(4). One factor evidencing that bonds may remain outstanding longer 
than necessary is a term that exceeds the safe harbors against the 
creation of replacement proceeds under Sec. 1.148-1(c)(4)(i)(B). These 
factors may be outweighed by other factors, however, such as bona fide 
cost underruns or long-term financial distress.
    (b) Consequences of overburdening the tax-exempt bond market--(1) In 
general. An issue that overburdens the tax-exempt bond market (within 
the meaning of paragraph (a)(4) of this section) is subject to the 
following special limitations--
    (i) Special yield restriction. Investments are subject to the 
definition of materially higher yield under Sec. 1.148-2(d) that is 
equal to one-thousandth of 1 percent. In addition, each investment is 
treated as a separate class of investments under Sec. 1.148-
5(b)(2)(ii), the yield on which may not be blended with that of other 
investments.
    (ii) Certain regulatory provisions inapplicable. The provisions of 
Sec. 1.148-5(c) (relating to yield reduction payments) and Sec. 1.148-
5(e) (2) and (3) (relating to recovery of qualified administrative 
costs) do not apply.
    (iii) Restrictive expenditure rule. Proceeds are not allocated to 
expenditures unless the proceeds-spent-last rule under Sec. 1.148-
6(d)(3)(i) is satisfied, applied by treating those proceeds as proceeds 
to be used for restricted working capital expenditures. For this 
purpose, available amount includes a reasonable working capital reserve 
as defined in Sec. 1.148-6(d)(3)(iii)(B).
    (2) Application. The provisions of this paragraph (b) only apply to 
the portion of an issue that, as a result of actions taken (or actions 
not taken) after the issue date, overburdens the market for tax-exempt 
bonds, except that for an issue that is reasonably expected as of the 
issue date to overburden the market, those provisions apply to all of 
the gross proceeds of the issue.

[[Page 735]]

    (c) Anti-abuse rules on excess gross proceeds of advance refunding 
issues--(1) In general. Except as otherwise provided in this paragraph 
(c), an abusive arbitrage device is used and bonds of an advance 
refunding issue are arbitrage bonds if the issue has excess gross 
proceeds.
    (2) Definition of excess gross proceeds. Excess gross proceeds means 
all gross proceeds of an advance refunding issue that exceed an amount 
equal to 1 percent of sale proceeds of the issue, other than gross 
proceeds allocable to--
    (i) Payment of principal, interest, or call premium on the prior 
issue;
    (ii) Payment of pre-issuance accrued interest on the refunding 
issue, and interest on the refunding issue that accrues for a period up 
to the completion date of any capital project for which the prior issue 
was issued, plus one year;
    (iii) A reasonably required reserve or replacement fund for the 
refunding issue or investment proceeds of such a fund;
    (iv) Payment of costs of issuance of the refunding issue;
    (v) Payment of administrative costs allocable to repaying the prior 
issue, carrying and repaying the refunding issue, or investments of the 
refunding issue;
    (vi) Transferred proceeds that will be used or maintained for the 
governmental purpose of the prior issue;
    (vii) Interest on purpose investments;
    (viii) Replacement proceeds in a sinking fund for the refunding 
issue;
    (ix) Qualified guarantee fees for the refunding issue or the prior 
issue; and
    (x) Fees for a qualified hedge for the refunding issue.
    (3) Special treatment of transferred proceeds. For purposes of this 
paragraph (c), all unspent proceeds of the prior issue as of the issue 
date of the refunding issue are treated as transferred proceeds of the 
advance refunding issue.
    (4) Special rule for crossover refundings. An advance refunding 
issue is not an issue of arbitrage bonds under this paragraph (c) if all 
excess gross proceeds of the refunding issue are used to pay interest 
that accrues on the refunding issue before the prior issue is 
discharged, and no gross proceeds of any refunding issue are used to pay 
interest on the prior issue or to replace funds used directly or 
indirectly to pay such interest (other than transferred proceeds used to 
pay interest on the prior issue that accrues for a period up to the 
completion date of the project for which the prior issue was issued, 
plus one year, or proceeds used to pay principal that is attributable to 
accrued original issue discount).
    (5) Special rule for gross refundings. This paragraph (c)(5) applies 
if an advance refunding issue (the series B issue) is used together with 
one or more other advance refunding issues (the series A issues) in a 
gross refunding of a prior issue, but only if the use of a gross 
refunding method is required under bond documents that were effective 
prior to November 6, 1992. These advance refunding issues are not 
arbitrage bonds under this paragraph (c) if--
    (i) All excess gross proceeds of the series B issue and each series 
A issue are investment proceeds used to pay principal and interest on 
the series B issue;
    (ii) At least 99 percent of all principal and interest on the series 
B issue is paid with proceeds of the series B and series A issues or 
with the earnings on other amounts in the refunding escrow for the prior 
issue;
    (iii) The series B issue is discharged not later than the prior 
issue; and
    (iv) As of any date, the amount of gross proceeds of the series B 
issue allocated to expenditures does not exceed the aggregate amount of 
expenditures before that date for principal and interest on the series B 
issue, and administrative costs of carrying and repaying the series B 
issue, or of investments of the series B issue.
    (d) Examples. The provisions of this section are illustrated by the 
following examples:

    Example 1. Mortgage sale. In 1982, City issued its revenue issue 
(the 1982 issue) and lent the proceeds to Developer to finance a low-
income housing project under former section 103(b)(4)(A) of the 1954 
Code. In 1994, Developer encounters financial difficulties and 
negotiates with City to refund the 1982 issue. City issues $10 million 
in principal amount of its 8 percent bonds (the 1994 issue). City lends 
the proceeds of the 1994 issue to Developer. To evidence Developer's 
obligation to repay that loan, Developer, as obligor, issues a note to 
City (the City note).

[[Page 736]]

Bank agrees to provide Developer with a direct-pay letter of credit 
pursuant to which Bank will make all payments to the trustee for the 
1994 issue necessary to meet Developer's obligations under the City 
note. Developer pays Bank a fee for the issuance of the letter of credit 
and issues a note to Bank (the Bank note). The Bank note is secured by a 
mortgage on the housing project and is guaranteed by FHA. The Bank note 
and the 1994 issue have different prepayment terms. The City does not 
reasonably expect to treat prepayments of the Bank note as gross 
proceeds of the 1994 issue. At the same time or pursuant to a series of 
related transactions, Bank sells the Bank note to Investor for $9.5 
million. Bank invests these monies together with its other funds. In 
substance, the transaction is a loan by City to Bank, under which Bank 
enters into a series of transactions that, in effect, result in Bank 
retaining $9.5 million in amounts treated as proceeds of the 1994 issue. 
Those amounts are invested in materially higher yielding investments 
that provide funds sufficient to equal or exceed the Bank's liability 
under the letter of credit. Alternatively, the letter of credit is 
investment property in a sinking fund for the 1994 issue provided by 
Developer, a substantial beneficiary of the financing. Because, in 
substance, Developer acquires the $10 million principal amount letter of 
credit for a fair market value purchase price of $9.5 million, the 
letter of credit is a materially higher yielding investment. Neither 
result would change if Developer's obligation under the Bank note is 
contingent on Bank performing its obligation under the letter of credit. 
Each characterization causes the bonds to be arbitrage bonds.
    Example 2. Bonds outstanding longer than necessary for yield-
blending device. (i) Longer bond maturity to create sinking fund. In 
1994, Authority issues an advance refunding issue (the refunding issue) 
to refund a 1982 prior issue (the prior issue). Under current market 
conditions, Authority will have to invest the refunding escrow at a 
yield significantly below the yield on the refunding issue. Authority 
issues its refunding issue with a longer weighted average maturity than 
otherwise necessary primarily for the purpose of creating a sinking fund 
for the refunding issue that will be invested in a guaranteed investment 
contract. The weighted average maturity of the refunding issue is less 
than 120 percent of the remaining average economic life of the 
facilities financed with the proceeds of the prior issue. The guaranteed 
investment contract has a yield that is higher than the yield on the 
refunding issue. The yield on the refunding escrow blended with the 
yield on the guaranteed investment contract does not exceed the yield on 
the issue. The refunding issue uses an abusive arbitrage device and the 
bonds of the issue are arbitrage bonds under section 148(a).
    (ii) Refunding of noncallable bonds. The facts are the same as in 
paragraph (i) of this Example 2 except that instead of structuring the 
refunding issue to enable it to take advantage of sinking fund 
investments, Authority will also refund other long-term, non-callable 
bonds in the same refunding issue. There are no savings attributable to 
the refunding of the non-callable bonds (e.g., a low-to-high refunding). 
The Authority invests the portion of the proceeds of the refunding issue 
allocable to the refunding of the non-callable bonds in the refunding 
escrow at a yield that is higher than the yield on the refunding issue, 
based on the relatively long escrow period for this portion of the 
refunding. The Authority invests the other portion of the proceeds of 
the refunding issue in the refunding escrow at a yield lower than the 
yield on the refunding issue. The blended yield on all the investments 
in the refunding escrow for the prior issues does not exceed the yield 
on the refunding issue. The portion of the refunding issue used to 
refund the noncallable bonds, however, was not otherwise necessary and 
was issued primarily to exploit the difference between taxable and tax-
exempt rates for that long portion of the refunding escrow to minimize 
the effect of lower yielding investments in the other portion of the 
escrow. The refunding issue uses an abusive arbitrage device and the 
bonds of the issue are arbitrage bonds.
    (iii) Governmental purpose. In paragraphs (i) and (ii) of this 
Example 2, the existence of a governmental purpose for the described 
financing structures would not change the conclusions unless Authority 
clearly established that the primary purpose for the use of the 
particular structure was a bona fide governmental purpose. The fact that 
each financing structure had the effect of eliminating significant 
amounts of negative arbitrage is strong evidence of a primary purpose 
that is not a bona fide governmental purpose. Moreover, in paragraph (i) 
of this Example 2, the structure of the refunding issue coupled with the 
acquisition of the guaranteed investment contract to lock in the 
investment yield associated with the structure is strong evidence of a 
primary purpose that is not a bona fide governmental purpose.
    Example 3. Window refunding. (i) Authority issues its 1994 refunding 
issue to refund a portion of the principal and interest on its 
outstanding 1985 issue. The 1994 refunding issue is structured using 
zero-coupon bonds that pay no interest or principal for the 5-year 
period following the issue date. The proceeds of the 1994 refunding 
issue are deposited in a refunding escrow to be used to pay only the 
interest requirements of the refunded portion of the 1985 issue. 
Authority enters into a guaranteed investment contract with a financial 
institution, G, under which G agrees to provide a guaranteed yield on 
revenues invested by Authority during

[[Page 737]]

the 5-year period following the issue date. The guaranteed investment 
contract has a yield that is no higher than the yield on the refunding 
issue. The revenues to be invested under this guaranteed investment 
contract consist of the amounts that Authority otherwise would have used 
to pay principal and interest on the 1994 refunding issue. The 
guaranteed investment contract is structured to generate receipts at 
times and in amounts sufficient to pay the principal and redemption 
requirements of the refunded portion of the 1985 issue. A principal 
purpose of these transactions is to avoid transferred proceeds. 
Authority will continue to invest the unspent proceeds of the 1985 issue 
that are on deposit in a refunding escrow for its 1982 issue at a yield 
equal to the yield on the 1985 issue and will not otherwise treat those 
unspent proceeds as transferred proceeds of the 1994 refunding issue. 
The 1994 refunding issue is an issue of arbitrage bonds since those 
bonds involve a transaction or series of transactions that overburdens 
the market by leaving bonds outstanding longer than is necessary to 
obtain a material financial advantage based on arbitrage. Specifically, 
Authority has structured the 1994 refunding issue to make available for 
the refunding of the 1985 issue replacement proceeds rather than 
proceeds so that the unspent proceeds of the 1985 issue will not become 
transferred proceeds of the 1994 refunding issue.
    (ii) The result would be the same in each of the following 
circumstances:
    (A) The facts are the same as in paragraph (i) of this Example 3 
except that Authority does not enter into the guaranteed investment 
contract but instead, as of the issue date of the 1994 refunding issue, 
reasonably expects that the released revenues will be available for 
investment until used to pay principal and interest on the 1985 issue.
    (B) The facts are the same as in paragraph (i) of this Example 3 
except that there are no unspent proceeds of the 1985 issue and 
Authority invests the released revenues at a yield materially higher 
than the yield on the 1994 issue.
    (C) The facts are the same as in paragraph (i) of this Example 3 
except that Authority uses the proceeds of the 1994 issue for capital 
projects instead of to refund a portion of the 1985 issue.
    Example 4. Sale of conduit loan. On January 1, 1994, Authority 
issues a conduit financing issue (the 1994 conduit financing issue) and 
uses the proceeds to purchase from City, an unrelated party, a tax-
exempt bond of City (the City note). The proceeds of the 1994 conduit 
financing issue are to be used to advance refund a prior conduit 
financing issue that was issued in 1988 and used to make a loan to City. 
The 1994 conduit financing issue and the City note each have a yield of 
8 percent on January 1, 1994. On June 30, 1996, interest rates have 
decreased and Authority sells the City note to D, a person unrelated to 
either City or Authority. Based on the sale price of the City note and 
treating June 30, 1996 as the issue date of the City note, the City note 
has a 6 percent yield. Authority deposits the proceeds of the sale of 
the City note into an escrow to redeem the bonds of the 1994 conduit 
financing issue on January 1, 2001. The escrow is invested in nonpurpose 
investments having a yield of 8 percent. For purposes of section 149(d), 
City and Authority are related parties and, therefore, the issue date of 
the City note is treated as being June 30, 1996. Thus, the City note is 
an advance refunding of Authority's 1994 conduit financing issue. 
Interest on the City note is not exempt from Federal income tax from the 
date it is sold to D under section 149(d), because, by investing the 
escrow investments at a yield of 8 percent instead of a yield not 
materially higher than 6 percent, the sale of the City note employs a 
device to obtain a material financial advantage, based on arbitrage, 
apart from the savings attributable to lower interest rates. In 
addition, the City note is not a tax-exempt bond because the note is the 
second advance refunding of the original bond under section 149(d)(3). 
The City note also employs an abusive arbitrage device and is an 
arbitrage bond under section 148.
    Example 5. Re-refunding. (i) On January 1, 1984, City issues a tax-
exempt issue (the 1984 issue) to finance the cost of constructing a 
prison. The 1984 issue has a 7 percent yield and a 30-year maturity. The 
1984 issue is callable at any time on or after January 1, 1994. On 
January 1, 1990, City issues a refunding issue (the 1990 issue) to 
advance refund the 1984 issue. The 1990 issue has an 8 percent yield and 
a 30-year maturity. The 1990 issue is callable at any time on or after 
January 1, 2000. The proceeds of the 1990 issue are invested at an 8 
percent yield in a refunding escrow for the 1984 issue (the original 
1984 escrow) in a manner sufficient to pay debt service on the 1984 
issue until maturity (i.e., an escrow to maturity). On January 1, 1994, 
City issues a refunding issue (the 1994 issue). The 1994 issue has a 6 
percent yield and a 30-year maturity. City does not invest the proceeds 
of the 1994 issue in a refunding escrow for the 1990 issue in a manner 
sufficient to pay a portion of the debt service until, and redeem a 
portion of that issue on, January 1, 2000. Instead, City invests those 
proceeds at a 6 percent yield in a new refunding escrow for a portion of 
the 1984 issue (the new 1984 escrow) in a manner sufficient to pay debt 
service on a portion of the 1984 issue until maturity. City also 
liquidates the investments allocable to the proceeds of the 1990 issue 
held in the original 1984 escrow and reinvests those proceeds in an 
escrow to pay a portion of the debt service on the 1990 issue itself 
until, and redeem a portion of that issue on, January 1,

[[Page 738]]

2000 (the 1990 escrow). The 1994 bonds are arbitrage bonds and employ an 
abusive device under section 149(d)(4). Although, in form, the proceeds 
of the 1994 issue are used to pay principal on the 1984 issue, this 
accounting for the use of the proceeds of the 1994 issue is an 
unreasonable, inconsistent accounting method under Sec. 1.148-6(a). 
Moreover, since the proceeds of the 1990 issue were set aside in an 
escrow to be used to retire the 1984 issue, the use of proceeds of the 
1994 issue for that same purpose involves a replacement of funds 
invested in higher yielding investments under section 148(a)(2). Thus, 
using a reasonable, consistent accounting method and giving effect to 
the substance of the transaction, the proceeds of the 1994 issue are 
treated as used to refund the 1990 issue and are allocable to the 1990 
escrow. The proceeds of the 1990 issue are treated as used to refund the 
1984 issue and are allocable to the investments in the new 1984 escrow. 
The proceeds of the 1990 issue allocable to the nonpurpose investments 
in the new 1984 escrow become transferred proceeds of the 1994 issue as 
principal is paid on the 1990 issue from amounts on deposit in the 1990 
escrow. As a result, the yield on nonpurpose investments allocable to 
the 1994 issue is materially higher than the yield on the 1994 issue, 
causing the bonds of the 1994 issue to be arbitrage bonds. In addition, 
the transaction employs a device under section 149(d)(4) to obtain a 
material financial advantage based on arbitrage, other than savings 
attributable to lower interest rates.
    (ii) The following changes in the facts do not affect the conclusion 
that the 1994 issue consists of arbitrage bonds--
    (1) The 1990 issue is a taxable issue;
    (2) The original 1984 escrow is used to pay the 1994 issue (rather 
than the 1990 issue); or
    (3) The 1994 issue is used to retire the 1984 issue within 90 days 
of January 1, 1994.

    (e) Authority of the Commissioner to clearly reflect the economic 
substance of a transaction. If an issuer enters into a transaction for a 
principal purpose of obtaining a material financial advantage based on 
the difference between tax-exempt and taxable interest rates in a manner 
that is inconsistent with the purposes of section 148, the Commissioner 
may exercise the Commissioner's discretion to depart from the rules of 
Sec. 1.148-1 through Sec. 1.148-11 as necessary to clearly reflect the 
economic substance of the transaction. For this purpose, the 
Commissioner may recompute yield on an issue or on investments, 
reallocate payments and receipts on investments, recompute the rebate 
amount on an issue, treat a hedge as either a qualified hedge or not a 
qualified hedge, or otherwise adjust any item whatsoever bearing upon 
the investments and expenditures of gross proceeds of an issue. For 
example, if the amount paid for a hedge is specifically based on the 
amount of arbitrage earned or expected to be earned on the hedged bonds, 
a principal purpose of entering into the contract is to obtain a 
material financial advantage based on the difference between tax-exempt 
and taxable interest rates in a manner that is inconsistent with the 
purposes of section 148.
    (f) Authority of the Commissioner to require an earlier date for 
payment of rebate. If the Commissioner determines that an issue is 
likely to fail to meet the requirements of Sec. 1.148-3 and that a 
failure to serve a notice of demand for payment on the issuer will 
jeopardize the assessment or collection of tax on interest paid or to be 
paid on the issue, the date that the Commissioner serves notice on the 
issuer is treated as a required computation date for payment of rebate 
for that issue.
    (g) Authority of the Commissioner to waive regulatory limitations. 
Notwithstanding any specific provision in Sec. Sec. 1.148-1 through 
1.148-11, the Commissioner may prescribe extensions of temporary 
periods, larger reasonably required reserve or replacement funds, or 
consequences of failures or remedial action under section 148 in lieu of 
or in addition to other consequences of those failures, or take other 
action, if the Commissioner finds that good faith or other similar 
circumstances so warrant, consistent with the purposes of section 148.

[T.D. 8476, 58 FR 33544, June 18, 1993; 58 FR 44453, Aug. 23, 1993, as 
amended by T.D. 8538, 59 FR 24046, May 10, 1994; T.D. 8476, 59 FR 24351, 
May 11, 1994; T.D. 8718, 62 FR 25512, May 9, 1997]