Internal Revenue Bulletin:  2005-32 

August 8, 2005 

Notice 2005-56

2005 Section 43 Inflation Adjustment


Table of Contents

Section 43(b)(3)(B) of the Internal Revenue Code requires the Secretary to publish an inflation adjustment factor. The enhanced oil recovery credit under § 43 for any taxable year is reduced if the “reference price,” determined under § 29(d)(2)(C), for the calendar year preceding the calendar year in which the taxable year begins, is greater than $28 multiplied by the inflation adjustment factor for that year.

The term “inflation adjustment factor” means, with respect to any calendar year, a fraction the numerator of which is the GNP implicit price deflator for the preceding calendar year and the denominator of which is the GNP implicit price deflator for 1990.

Because the reference price for the 2004 calendar year ($36.75) does not exceed $28 multiplied by the inflation adjustment factor for the 2005 calendar year, the enhanced oil recovery credit for qualified costs paid or incurred in 2005 is determined without regard to the phase-out for crude oil price increases.

Table 1 contains the GNP implicit price deflator used for the 2005 calendar year, as well as the previously published GNP implicit price deflators used for the 1991 through 2004 calendar years.

Notice 2005-56 TABLE 1
GNP IMPLICIT PRICE DEFLATORS
Calendar Year GNP Implicit Price Deflator
1990 112.9 (used for 1991)
1991 117.0 (used for 1992)
1992 120.9 (used for 1993)
1993 124.1 (used for 1994)
1994 126.0 (used for 1995)
1995 107.5 (used for 1996)
1996 109.7 (used for 1997)
1997 112.35 (used for 1998)
1998 112.64 (used for 1999)
1999 104.59 (used for 2000)
2000 106.89 (used for 2001)
2001 109.31 (used for 2002)
2002 110.63 (used for 2003)
2003 105.67 (used for 2004)
2004 108.23 (used for 2005)
* Beginning in 1995, the GNP implicit price deflator was rebased relative to 1992. The 1990 GNP implicit price deflator used to compute the 1996 § 43 inflation adjustment factor is 93.6.
** Beginning in 1997, two digits follow the decimal point in the GNP implicit price deflator. The 1990 GNP price deflator used to compute the 1998 § 43 inflation adjustment factor is 93.63.
*** Beginning in 1999, the GNP implicit price deflator was rebased relative to 1996. The 1990 GNP implicit price deflator used to compute the 2000 § 43 inflation adjustment factor is 86.53.
**** Beginning in 2003, the GNP implicit price deflator was rebased relative to 2000. The 1990 GNP implicit price deflator used to compute the 2004 § 43 inflation adjustment factor is 81.59.
Notice 2005-56 TABLE 2
INFLATION ADJUSTMENT FACTORS AND PHASE-OUT AMOUNTS
Calendar Year Inflation Adjustment Factor Phase-out Amount
1991 1.0000 0
1992 1.0363 0
1993 1.0708 0
1994 1.0992 0
1995 1.1160 0
1996 1.1485 0
1997 1.1720 0
1998 1.1999 0
1999 1.2030 0
2000 1.2087 0
2001 1.2353 0
2002 1.2633 0
2003 1.2785 0
2004 1.2952 0
2005 1.3266 0

Table 2 contains the inflation adjustment factor and the phase-out amount for taxable years beginning in the 2005 calendar year as well as the previously published inflation adjustment factors and phase-out amounts for taxable years beginning in 1991 through 2004 calendar years.

DRAFTING INFORMATION

The principal author of this notice is Kelly R. Morrison-Lee of the Office of Associate Chief Counsel (Passthroughs and Special Industries). For further information regarding this notice, contact Ms. Morrison-Lee at (202) 622-3120 (not a toll-free call).


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