Section 6621.—Determina- tion of Rate of Interest

26 CFR 301.6621–1: Interest rate.

Interest rates; underpayments and overpayments. The rate of interest determined under section 6621 of the Code for the calendar quarter beginning July 1, 2005, will be 6 percent for overpayments (5 percent in the case of a corporation), 6 percent for underpayments, and 8 percent for large corporate underpayments. The rate of interest paid on the portion of a corporate overpayment exceeding $10,000 will be 3.5 percent.

Rev. Rul. 2005–35

Section 6621 of the Internal Revenue Code establishes the rates for interest on tax overpayments and tax underpayments. Under section 6621(a)(1), the overpayment rate is the sum of the federal short-term rate plus 3 percentage points (2 percentage points in the case of a corporation), except the rate for the portion of a corporate overpayment of tax exceeding

Technical Information Service, an agency of the U.S. Department of Commerce, and may be accessed on the internet. Sectors 31 through 33 of the NAICS Manual contain listings of specialized industries for the manufacture of described products and equipment. For this purpose, any 6-digit NAICS product class with a last digit of 9 (a miscellaneous category) is not a product class for purposes of this section. If a property is listed in more than one product class, the property is treated as listed in any one of those product classes. A property’s 6-digit product class is referred to as the property’s NAICS code.

(4) Modifications of NAICS product classes . The product classes of the NAICS Manual may be updated or otherwise modified from time to time as the manual is updated, effective on or after the date of the modification. The NAICS Manual generally is modified every five years, in years ending in a 2 or 7 (such as 2002, 2007, and 2012). The applicability date of the modified NAICS Manual is announced in the Federal Register and generally is January 1 of the year the NAICS Manual is modified. Taxpayers may rely on these modifications as they become effective in structuring exchanges under this section. Taxpayers may rely on the previous NAICS Manual for transfers of property made by a taxpayer during the one-year period following the effective date of the modification. For transfers of property made by a taxpayer on or after January 1, 1997, and on or before January 1, 2003, the NAICS Manual of 1997 may be used for determining product classes of the exchanged property.

(5) Administrative procedures for re- vising general asset classes and product classes . The Commissioner may, through published guidance of general applicability, supplement, modify, clarify, or update the guidance relating to the classification of properties provided in this paragraph (b). (See §601.601(d)(2) of this chapter.) For example, the Commissioner may determine not to follow (in whole or in part) a general asset class for purposes of identifying property of like class, may determine not to follow (in whole or in part) any modification of product classes published in the NAICS Manual, or may determine that other properties not listed within the same or in any product class or general asset class nevertheless are of a like

class. The Commissioner also may determine that two items of property that are listed in separate product classes or in product classes with a last digit of 9 are of a like class, or that an item of property that has a NAICS code is of a like class to an item of property that does not have a NAICS code.

(6) No inference outside of section 1031 . The rules provided in this section concerning the use of general asset classes or product classes are limited to exchanges under section 1031. No inference is intended with respect to the classification of property for other purposes, such as depreciation.

(7) Examples . - * *

• • • • Example 3 . Taxpayer E transfers a grader to F in exchange for a scraper. Neither property is within any of the general asset classes. However, both properties are within the same product class (NAICS code 333120). The grader and scraper are of a like class and deemed to be of a like kind for purposes of section 1031.

Example 4 . Taxpayer G transfers a personal computer (asset class 00.12), an airplane (asset class 00.21) and a sanding machine (NAICS code 333210), to H in exchange for a printer (asset class 00.12), a heavy general purpose truck (asset class 00.242) and a lathe (NAICS code 333210). The personal computer and the printer are of a like class because they are within the same general asset class. The sanding machine and the lathe are of a like class because they are within the same product class (although neither property is within any of the general asset classes). The airplane and the heavy general purpose truck are neither within the same general asset class nor within the same product class, and are not of a like kind.

(8) Transition rule . Properties within the same product classes based on the 4-digit codes contained in Division D of the Executive Office of the President, Office of Management and Budget, Standard Industrial Classification Manual (1987), will be treated as property of a like class for transfers of property made by taxpayers on or before May 19, 2005.

• • • • (d) Effective date . Except as otherwise provided in this paragraph (d), this section applies to exchanges occurring on or after April 11, 1991. Paragraphs (b)(3) through (b)(6), Example 3 and Example 4 of paragraph (b)(7), and paragraph (b)(8) of this section apply to transfers of property made by taxpayers on or after August 12, 2004. However, taxpayers may apply paragraphs (b)(3) through (b)(6), and Example 3 and Example 4 of paragraph (b)(7) of this sec

June 13, 2005 1214 2005–24 I.R.B.

$10,000 for a taxable period is the sum of the federal short-term rate plus 0.5 of a percentage point for interest computations made after December 31, 1994. Under section 6621(a)(2), the underpayment rate is the sum of the federal short-term rate plus 3 percentage points.

Section 6621(c) provides that for purposes of interest payable under section 6601 on any large corporate underpayment, the underpayment rate under section 6621(a)(2) is determined by substituting “5 percentage points” for “3 percentage points.” See section 6621(c) and section 301.6621–3 of the Regulations on Procedure and Administration for the definition of a large corporate underpayment and for the rules for determining the applicable date. Section 6621(c) and section 301.6621–3 are generally effective for periods after December 31, 1990.

Section 6621(b)(1) provides that the Secretary will determine the federal short-term rate for the first month in each calendar quarter.

Section 6621(b)(2)(A) provides that the federal short-term rate determined under section 6621(b)(1) for any month applies

during the first calendar quarter beginning after such month.

Section 6621(b)(3) provides that the federal short-term rate for any month is the federal short-term rate determined during such month by the Secretary in accordance with § 1274(d), rounded to the nearest full percent (or, if a multiple of ¹ /2 of 1 percent, the rate is increased to the next highest full percent).

Notice 88–59, 1988–1 C.B. 546, announced that, in determining the quarterly interest rates to be used for overpayments and underpayments of tax under section 6621, the Internal Revenue Service will use the federal short-term rate based on daily compounding because that rate is most consistent with section 6621 which, pursuant to section 6622, is subject to daily compounding.

Rounded to the nearest full percent, the federal short-term rate based on daily compounding determined during the month of April 2005 is 3 percent. Accordingly, an overpayment rate of 6 percent (5 percent in the case of a corporation) and an underpayment rate of 6 percent are established for the calendar quarter beginning July 1,

TABLE OF INTEREST RATES

2005. The overpayment rate for the portion of a corporate overpayment exceeding $10,000 for the calendar quarter beginning July 1, 2005, is 3.5 percent. The underpayment rate for large corporate underpayments for the calendar quarter beginning July 1, 2005, is 8 percent. These rates apply to amounts bearing interest during that calendar quarter.

Interest factors for daily compound interest for annual rates of 3.5 percent, 5 percent, 6 percent, and 8 percent are published in Tables 12, 15, 17, and 21 of Rev. Proc. 95–17, 1995–1 C.B. 556, 566, 569, 571, and 575.

Annual interest rates to be compounded daily pursuant to section 6622 that apply for prior periods are set forth in the tables accompanying this revenue ruling.

DRAFTING INFORMATION

The principal author of this revenue ruling is Crystal Foster of the Office of Associate Chief Counsel (Procedure & Administration). For further information regarding this revenue ruling, contact Ms. Foster at (202) 622–7198 (not a toll-free call).

PERIODS BEFORE JUL. 1, 1975 - PERIODS ENDING DEC. 31, 1986

OVERPAYMENTS AND UNDERPAYMENTS

PERIOD RATE

In 1995–1 C.B. DAILY RATE TABLE

Before Jul. 1, 1975 6% Table 2, pg. 557 Jul. 1, 1975—Jan. 31, 1976 9% Table 4, pg. 559 Feb. 1, 1976—Jan. 31, 1978 7% Table 3, pg. 558 Feb. 1, 1978—Jan. 31, 1980 6% Table 2, pg. 557 Feb. 1, 1980—Jan. 31, 1982 12% Table 5, pg. 560 Feb. 1, 1982—Dec. 31, 1982 20% Table 6, pg. 560 Jan. 1, 1983—Jun. 30, 1983 16% Table 37, pg. 591 Jul. 1, 1983—Dec. 31, 1983 11% Table 27, pg. 581 Jan. 1, 1984—Jun. 30, 1984 11% Table 75, pg. 629 Jul. 1, 1984—Dec. 31, 1984 11% Table 75, pg. 629 Jan. 1, 1985—Jun. 30, 1985 13% Table 31, pg. 585 Jul. 1, 1985—Dec. 31, 1985 11% Table 27, pg. 581 Jan. 1, 1986—Jun. 30, 1986 10% Table 25, pg. 579 Jul. 1, 1986—Dec. 31, 1986 9% Table 23, pg. 577

2005–24 I.R.B. 1215 June 13, 2005

June 13, 2005 1216 2005–24 I.R.B.

TABLE OF INTEREST RATES

FROM JANUARY 1, 1999 - PRESENT

NONCORPORATE OVERPAYMENTS AND UNDERPAYMENTS

1995–1 C.B. RATE TABLE PG

Jan. 1, 1999—Mar. 31, 1999 7% 19 573 Apr. 1, 1999—Jun. 30, 1999 8% 21 575 Jul. 1, 1999—Sep. 30, 1999 8% 21 575 Oct. 1, 1999—Dec. 31, 1999 8% 21 575 Jan. 1, 2000—Mar. 31, 2000 8% 69 623 Apr. 1, 2000—Jun. 30, 2000 9% 71 625 Jul. 1, 2000—Sep. 30, 2000 9% 71 625 Oct. 1, 2000—Dec. 31, 2000 9% 71 625 Jan. 1, 2001—Mar. 31, 2001 9% 23 577 Apr. 1, 2001—Jun. 30, 2001 8% 21 575 Jul. 1, 2001—Sep. 30, 2001 7% 19 573 Oct. 1, 2001—Dec. 31, 2001 7% 19 573 Jan. 1, 2002—Mar. 31, 2002 6% 17 571 Apr. 1, 2002—Jun. 30, 2002 6% 17 571 Jul. 1, 2002—Sep. 30, 2002 6% 17 571 Oct. 1, 2002—Dec. 31, 2002 6% 17 571 Jan. 1, 2003—Mar. 31, 2003 5% 15 569 Apr. 1, 2003—Jun. 30, 2003 5% 15 569 Jul. 1, 2003—Sep. 30, 2003 5% 15 569 Oct. 1, 2003—Dec. 31, 2003 4% 13 567 Jan. 1, 2004—Mar. 31, 2004 4% 61 615 Apr. 1, 2004—Jun. 30, 2004 5% 63 617 Jul. 1, 2004—Sep. 30, 2004 4% 61 615 Oct. 1, 2004—Dec. 31, 2004 5% 63 617 Jan. 1, 2005—Mar. 31, 2005 5% 15 569 Apr. 1, 2005—Jun. 30, 2005 6% 17 571 Jul. 1, 2005—Sep. 30, 2005 6% 17 571

2005–24 I.R.B. 1217 June 13, 2005

TABLE OF INTEREST RATES FOR LARGE CORPORATE UNDERPAYMENTS

FROM JANUARY 1, 1991 - PRESENT

1995–1 C.B. RATE TABLE PG

Jan. 1, 1991—Mar. 31, 1991 13% 31 585 Apr. 1, 1991—Jun. 30, 1991 12% 29 583 Jul. 1, 1991—Sep. 30, 1991 12% 29 583 Oct. 1, 1991—Dec. 31, 1991 12% 29 583 Jan. 1, 1992—Mar. 31, 1992 11% 75 629 Apr. 1, 1992—Jun. 30, 1992 10% 73 627 Jul. 1, 1992—Sep. 30, 1992 10% 73 627 Oct. 1, 1992—Dec. 31, 1992 9% 71 625 Jan. 1, 1993—Mar. 31, 1993 9% 23 577 Apr. 1, 1993—Jun. 30, 1993 9% 23 577 Jul. 1, 1993—Sep. 30, 1993 9% 23 577 Oct. 1, 1993—Dec. 31, 1993 9% 23 577 Jan. 1, 1994—Mar. 31, 1994 9% 23 577 Apr. 1, 1994—Jun. 30, 1994 9% 23 577 Jul. 1, 1994—Sep. 30, 1994 10% 25 579 Oct. 1, 1994—Dec. 31, 1994 11% 27 581 Jan. 1, 1995—Mar. 31, 1995 11% 27 581 Apr. 1, 1995—Jun. 30, 1995 12% 29 583 Jul. 1, 1995—Sep. 30, 1995 11% 27 581 Oct. 1, 1995—Dec. 31, 1995 11% 27 581 Jan. 1, 1996—Mar. 31, 1996 11% 75 629 Apr. 1, 1996—Jun. 30, 1996 10% 73 627 Jul. 1, 1996—Sep. 30, 1996 11% 75 629 Oct. 1, 1996—Dec. 31, 1996 11% 75 629 Jan. 1, 1997—Mar. 31, 1997 11% 27 581 Apr. 1, 1997—Jun. 30, 1997 11% 27 581 Jul. 1, 1997—Sep. 30, 1997 11% 27 581 Oct. 1, 1997—Dec. 31, 1997 11% 27 581 Jan. 1, 1998—Mar. 31, 1998 11% 27 581 Apr. 1, 1998—Jun. 30, 1998 10% 25 579 Jul. 1, 1998—Sep. 30, 1998 10% 25 579 Oct. 1, 1998—Dec. 31, 1998 10% 25 579 Jan. 1, 1999—Mar. 31, 1999 9% 23 577 Apr. 1, 1999—Jun. 30, 1999 10% 25 579

June 13, 2005 1218 2005–24 I.R.B.

TABLE OF INTEREST RATES FOR LARGE CORPORATE UNDERPAYMENTS

FROM JANUARY 1, 1991 - PRESENT - Continued

1995–1 C.B. RATE TABLE PG

Jul. 1, 1999—Sep. 30, 1999 10% 25 579 Oct. 1, 1999—Dec. 31, 1999 10% 25 579 Jan. 1, 2000—Mar. 31, 2000 10% 73 627 Apr. 1, 2000—Jun. 30, 2000 11% 75 629 Jul. 1, 2000—Sep. 30, 2000 11% 75 629 Oct. 1, 2000—Dec. 31, 2000 11% 75 629 Jan. 1, 2001—Mar. 31, 2001 11% 27 581 Apr. 1, 2001—Jun. 30, 2001 10% 25 579 Jul. 1, 2001—Sep. 30, 2001 9% 23 577 Oct. 1, 2001—Dec. 31, 2001 9% 23 577 Jan. 1, 2002—Mar. 31, 2002 8% 21 575 Apr. 1, 2002—Jun. 30, 2002 8% 21 575 Jul. 1, 2002—Sep. 30, 2002 8% 21 575 Oct. 1, 2002—Dec. 30, 2002 8% 21 575 Jan. 1, 2003—Mar. 31, 2003 7% 19 573 Apr. 1, 2003—Jun. 30, 2003 7% 19 573 Jul. 1, 2003—Sep. 30, 2003 7% 19 573 Oct. 1, 2003—Dec. 31, 2003 6% 17 571 Jan. 1, 2004—Mar. 31, 2004 6% 65 619 Apr. 1, 2004—Jun. 30, 2004 7% 67 621 Jul. 1, 2004—Sep. 30, 2004 6% 65 619 Oct. 1, 2004—Dec. 31, 2004 7% 67 621 Jan. 1, 2005—Mar. 31, 2005 7% 19 573 Apr. 1, 2005—Jun. 30, 2005 8% 21 575 Jul. 1, 2005—Sep. 30, 2005 8% 21 575

TABLE OF INTEREST RATES FOR CORPORATE

OVERPAYMENTS EXCEEDING $10,000

FROM JANUARY 1, 1995 - PRESENT

1995–1 C.B. RATE TABLE PG

Jan. 1, 1995—Mar. 31, 1995 6.5% 18 572 Apr. 1, 1995—Jun. 30, 1995 7.5% 20 574 Jul. 1, 1995—Sep. 30, 1995 6.5% 18 572 Oct. 1, 1995—Dec. 31, 1995 6.5% 18 572 Jan. 1, 1996—Mar. 31, 1996 6.5% 66 620 Apr. 1, 1996—Jun. 30, 1996 5.5% 64 618 Jul. 1, 1996—Sep. 30, 1996 6.5% 66 620 Oct. 1, 1996—Dec. 31, 1996 6.5% 66 620 Jan. 1, 1997—Mar. 31, 1997 6.5% 18 572 Apr. 1, 1997—Jun. 30, 1997 6.5% 18 572 Jul. 1, 1997—Sep. 30, 1997 6.5% 18 572 Oct. 1, 1997—Dec. 31, 1997 6.5% 18 572 Jan. 1, 1998—Mar. 31, 1998 6.5% 18 572 Apr. 1, 1998—Jun. 30, 1998 5.5% 16 570 Jul. 1, 1998—Sep. 30, 1998 5.5% 16 570 Oct. 1, 1998—Dec. 31, 1998 5.5% 16 570 Jan. 1, 1999—Mar. 31, 1999 4.5% 14 568 Apr. 1, 1999—Jun. 30, 1999 5.5% 16 570 Jul. 1, 1999—Sep. 30, 1999 5.5% 16 570 Oct. 1, 1999—Dec. 31, 1999 5.5% 16 570 Jan. 1, 2000—Mar. 31, 2000 5.5% 64 618

2005–24 I.R.B. 1219 June 13, 2005

TABLE OF INTEREST RATES FOR CORPORATE

OVERPAYMENTS EXCEEDING $10,000

FROM JANUARY 1, 1995 - PRESENT - Continued

1995–1 C.B. RATE TABLE PG

Apr. 1, 2000—Jun. 30, 2000 6.5% 66 620 Jul. 1, 2000—Sep. 30, 2000 6.5% 66 620 Oct. 1, 2000—Dec. 31, 2000 6.5% 66 620 Jan. 1, 2001—Mar. 31, 2001 6.5% 18 572 Apr. 1, 2001—Jun. 30, 2001 5.5% 16 570 Jul. 1, 2001—Sep. 30, 2001 4.5% 14 568 Oct. 1, 2001—Dec. 31, 2001 4.5% 14 568 Jan. 1, 2002—Mar. 31, 2002 3.5% 12 566 Apr. 1, 2002—Jun. 30, 2002 3.5% 12 566 Jul. 1, 2002—Sep. 30, 2002 3.5% 12 566 Oct. 1, 2002—Dec. 31, 2002 3.5% 12 566 Jan. 1, 2003—Mar. 31, 2003 2.5% 10 564 Apr. 1, 2003—Jun. 30, 2003 2.5% 10 564 Jul. 1, 2003—Sep. 30, 2003 2.5% 10 564 Oct. 1, 2003—Dec. 31, 2003 1.5% 8 562 Jan. 1, 2004—Mar. 31, 2004 1.5% 56 610 Apr. 1, 2004—Jun. 30, 2004 2.5% 58 612 Jul. 1, 2004—Sep. 30, 2004 1.5% 56 610 Oct. 1, 2004—Dec. 31, 2004 2.5% 58 612 Jan. 1, 2005—Mar. 31, 2005 2.5% 10 564 Apr. 1, 2005—Jun. 30, 2005 3.5% 12 566 Jul. 1, 2005—Sep. 30, 2005 3.5% 12 566

June 13, 2005 1220 2005–24 I.R.B.