Part III. Administrative, Procedural, and Miscellaneous
Internal Revenue Bulletin 2013-22 · 2026-10-03 edition · updated 2026-10-04 · United States
Update for Weighted Average Interest Rates, Yield Curves, and Segment Rates
Notice 2013–32
This notice provides guidance on the corporate bond monthly yield curve (and the corresponding spot segment rates), and the 24-month average segment rates under § 430(h)(2) of the Internal Revenue Code. In addition, this notice provides guidance as to the interest rate on 30-year Treasury securities under § 417(e)(3)(A)(ii)(II) as in effect for plan years beginning before 2008, the 30-year Treasury weighted average rate under § 431(c)(6)(E)(ii)(I), and the minimum present value segment rates under § 417(e)(3)(D) as in effect for plan years beginning after 2007. These rates reflect certain changes implemented by the Moving Ahead for Progress in the 21st Century Act, Public Law 112–141 (MAP–21). MAP–21 provides that for purposes of § 430(h)(2), the segment rates are limited by the applicable maximum percentage or the applicable minimum percentage based on the average of segment rates over a 25-year period.
YIELD CURVE AND SEGMENT RATES
Generally, except for certain plans under sections 104 and 105 of the Pension Protection Act of 2006, § 430 of the Code specifies the minimum funding requirements that apply to single employer plans pursuant to § 412. Section 430(h)(2) specifies the interest rates that must be used to determine a plan’s target normal cost and funding target. Under this provision, present value is generally determined using three 24-month average interest rates (“segment rates”), each of which applies to cash flows during specified periods. To the extent provided under § 430(h)(2)(C)(iv), these segment rates are adjusted by the applicable percentage of the 25-year average segment rates for the period ending September 30 of the year preceding the calendar year in which the plan year begins. However, an election may be made under § 430(h)(2)(D)(ii) to use the monthly yield curve in place of the segment rates.
Notice 2007–81, 2007–44 I.R.B. 899, provides guidelines for determining the monthly corporate bond yield curve, and
the 24-month average corporate bond segment rates used to compute the target normal cost and the funding target. Pursuant to Notice 2007–81, the monthly corporate bond yield curve derived from April 2013 data is in Table I at the end of this notice. The spot first, second, and third segment rates for the month of April 2013 are, respectively, 0.93, 3.61, and 4.88. For plan years beginning on or after January 1, 2012, the 24-month average segment rates determined under § 430(h)(2)(C)(iv) must be adjusted by the applicable percentage of the corresponding 25-year average segment rates. The 25-year average segment rates for plan years beginning in 2012 and for plan years beginning in 2013 were published in Notices 2012–55 and 2013–11, respectively. The three 24-month average corporate bond segment rates applicable for May 2013 without adjustment, and the adjusted 24-month average segment rates taking into account the applicable percentages of the corresponding 25-year average segment rates, are as follows:
| For Plan Years Beginning In |
24-Month Average Segment Rates Not Adjusted |
Adjusted 24-Month Average Segment Rates, Based on Applicable Percentage of 25-Year Average Rates |
||||||
|---|---|---|---|---|---|---|---|---|
| For Plan Years Beginning In |
Applicable Month |
Applicable Month |
First Segment |
Second Segment |
Third Segment |
First Segment |
Second Segment |
Third Segment |
| 2012 | May | 2013 | 1.46 | 4.15 | 5.20 | 5.54 | 6.85 | 7.52 |
| 2013 | May | 2013 | 1.46 | 4.15 | 5.20 | 4.94 | 6.15 | 6.76 |
provides guidelines for determining the weighted average interest rate. The rate of interest on 30-year Treasury securities for April 2013 is 2.93 percent. The Service has determined this rate as the average of the daily determinations of yield on the 30-year Treasury bond maturing in February 2043. The following rates were determined for plan years beginning in the month shown below.
30-YEAR TREASURY SECURITIES INTEREST RATES
Generally for plan years beginning after 2007, § 431 specifies the minimum funding requirements that apply to multiemployer plans pursuant to § 412. Section 431(c)(6)(B) specifies a minimum amount for the full-funding limitation described in section 431(c)(6)(A), based
on the plan’s current liability. Section 431(c)(6)(E)(ii)(I) provides that the interest rate used to calculate current liability for this purpose must be no more than 5 percent above and no more than 10 percent below the weighted average of the rates of interest on 30-year Treasury securities during the four-year period ending on the last day before the beginning of the plan year. Notice 88–73, 1988–2 C.B. 383,
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For Plan Years
30-Year Treasury Weighted
Beginning in Permissible Range
Month Year
Average 90% to 105%
May 2013 3.48 3.13 3.66
rates determined for April 2013 are as follows:
Third Segment
MINIMUM PRESENT VALUE SEGMENT RATES
In general, the applicable interest rates under § 417(e)(3)(D) are segment rates
First Segment
computed without regard to a 24-month average. Notice 2007–81 provides guidelines for determining the minimum present value segment rates. Pursuant to that notice, the minimum present value segment
Second Segment
0.93 3.61 4.88
DRAFTING INFORMATION
The principal author of this notice is Tony Montanaro of the Employee Plans,
Tax Exempt and Government Entities Division. Mr. Montanaro may be e-mailed at RetirementPlanQuestions@irs.gov .
2013–22 I.R.B. 1138 May 28, 2013
Table I
Monthly Yield Curve for April 2013
Derived from April 2013 Data
Maturity Yield Maturity Yield Maturity Yield Maturity Yield Maturity Yield
May 28, 2013 1139 2013–22 I.R.B.
Credit for Renewable Electricity Production, Refined Coal Production, and Indian Coal Production, and Publication of Inflation Adjustment Factors and Reference Prices for Calendar Year 2013
Notice 2013–33
This notice publishes the inflation adjustment factors and reference prices for calendar year 2013 for the renewable electricity production credit, the refined coal production credit, and the Indian coal production credit under section 45 of the Internal Revenue Code. The 2013 inflation adjustment factors and reference prices are used in determining the availability of the credits. The 2013 inflation adjustment factors and reference prices apply to calendar year 2013 sales of kilowatt hours of electricity produced in the United States or a possession thereof from qualified energy resources and to calendar year 2013 sales of refined coal and Indian coal produced in the United States or a possession thereof.
BACKGROUND
Section 45(a) provides that the renewable electricity production credit for any tax year is an amount equal to the product of 1.5 cents multiplied by the kilowatt hours of specified electricity produced by the taxpayer and sold to an unrelated person during the tax year. This electricity must be produced from qualified energy resources and at a qualified facility during the 10-year period beginning on the date the facility was originally placed in service.
Section 45(b)(1) provides that the amount of the credit determined under section 45(a) is reduced by an amount which bears the same ratio to the amount of the credit as (A) the amount by which the reference price for the calendar year in which the sale occurs exceeds 8 cents, bears to (B) 3 cents. Under section 45(b)(2), the 1.5 cent amount in section 45(a), the 8 cent amount in section 45(b)(1), the $4.375 amount in section 45(e)(8)(A), the $2.00 amount in section 45(e)(8)(D)(ii)(I), and in section 45(e)(8)(B)(i), the reference price of fuel used as feedstock (within
the meaning of section 45(c)(7)(A)) in 2002 are each adjusted by multiplying the amount by the inflation adjustment factor for the calendar year in which the sale occurs. If any amount as increased under the preceding sentence is not a multiple of 0.1 cent, the amount is rounded to the nearest multiple of 0.1 cent. In the case of electricity produced in open-loop biomass facilities, small irrigation power facilities, landfill gas facilities, trash facilities, qualified hydropower facilities, and marine and hydrokinetic renewable energy facilities, section 45(b)(4)(A) requires the amount in effect under section 45(a)(1) (before rounding to the nearest 0.1 cent) to be reduced by one-half.
Section 45(c)(1) defines qualified energy resources as wind, closed-loop biomass, open-loop biomass, geothermal energy, solar energy, small irrigation power, municipal solid waste, qualified hydropower production, and marine and hydrokinetic renewable energy.
Section 45(d)(1) defines a qualified facility using wind to produce electricity as any facility owned by the taxpayer that is originally placed in service after December 31, 1993, and the construction of which begins before January 1, 2014. See section 45(e)(7) for rules relating to the inapplicability of the credit to electricity sold to utilities under certain contracts.
Section 45(d)(2)(A) defines a qualified facility using closed-loop biomass to produce electricity as any facility (i) owned by the taxpayer that is originally placed in service after December 31, 1992, and the construction of which begins before January 1, 2014; or (ii) owned by the taxpayer which before January 1, 2014, is originally placed in service and modified to use closed-loop biomass to co-fire with coal, with other biomass, or with both, but only if the modification is approved under the Biomass Power for Rural Development Programs or is part of a pilot project of the Commodity Credit Corporation as described in 65 Fed. Reg. 63052. For purposes of section 45(d)(2)(A)(ii), a facility shall be treated as modified before January 1, 2014, if the construction of such modification begins before such date. Section 45(d)(2)(C) provides that in the case of a qualified facility described in section 45(d)(2)(A)(ii), (i) the 10-year period referred to in section 45(a) is treated as beginning no earlier than the date of enactment of section 45(d)(2)(C)(i)
(October 22, 2004); and (ii) if the owner of the facility is not the producer of the electricity, the person eligible for the credit allowable under section 45(a) is the lessee or the operator of the facility.
Section 45(d)(3)(A) defines a qualified facility using open-loop biomass to produce electricity as any facility owned by the taxpayer which (i) in the case of a facility using agricultural livestock waste nutrients, (I) is originally placed in service after the date of enactment of section 45(d)(3)(A)(i)(I) (October 22, 2004) and the construction of which begins before January 1, 2014, and (II) the nameplate capacity rating of which is not less than 150 kilowatts; and (ii) in the case of any other facility, the construction of which begins before January 1, 2014. In the case of any facility described in section 45(d)(3)(A), if the owner of the facility is not the producer of the electricity, section 45(d)(3)(C) provides that the person eligible for the credit allowable under section 45(a) is the lessee or the operator of the facility.
Section 45(d)(4) defines a qualified facility using geothermal or solar energy to produce electricity as any facility owned by the taxpayer which is originally placed in service after the date of enactment of section 45(d)(4) (October 22, 2004) and which, (A) in the case of a facility using solar energy, is placed in service before January 1, 2006, or (B) in the case of a facility using geothermal energy, the construction of which begins before January 1, 2014. A qualified facility using geothermal or solar energy does not include any property described in section 48(a)(3) the basis of which is taken into account by the taxpayer for purposes of determining the energy credit under section 48.
Section 45(d)(5) defines a qualified facility using small irrigation power to produce electricity as any facility owned by the taxpayer which is originally placed in service after the date of enactment of section 45(d)(5) (October 22, 2004) and before October 3, 2008.
Section 45(d)(6) defines a qualified facility using gas derived from the biodegradation of municipal solid waste to produce electricity as any facility owned by the taxpayer which is originally placed in service after the date of enactment of section 45(d)(6) (October 22, 2004) and the construction of which begins before January 1, 2014.
2013–22 I.R.B. 1140 May 28, 2013
Section 45(e)(10)(A) provides in the case of a producer of Indian coal, the credit determined under section 45 for any taxable year shall be increased by an amount equal to the applicable dollar amount per ton of Indian coal (i) produced by the taxpayer at an Indian coal production facility during the 8-year period beginning on January 1, 2006, and (ii) sold by the taxpayer (I) to an unrelated person, and (II) during such 8-year period and such taxable year.
Section 45(e)(10)(B)(i) defines “applicable dollar amount” for any taxable year as (I) $1.50 in the case of calendar years 2006 through 2009, and (II) $2.00 in the case of calendar years beginning after 2009. Section 45(e)(2)(A) requires the Secretary to determine and publish in the Federal Register each calendar year the inflation adjustment factor and the reference price for the calendar year. The inflation adjustment factors and the reference prices for the 2013 calendar year were published in the Federal Register on April 3, 2013.
Section 45(e)(2)(B) defines the inflation adjustment factor for a calendar year as the fraction the numerator of which is the GDP implicit price deflator for the preceding calendar year and the denominator of which is the GDP implicit price deflator for the calendar year 1992. The term “GDP implicit price deflator” means the most recent revision of the implicit price deflator for the gross domestic product as computed and published by the Department of Commerce before March 15 of the calendar year.
Section 45(e)(2)(C) provides that the reference price is the Secretary’s determination of the annual average contract price per kilowatt hour of electricity generated from the same qualified energy resource and sold in the previous year in the United States. Only contracts entered into after December 31, 1989, are taken into account.
Under section 45(e)(8)(C), the determination of the reference price for fuel used as feedstock within the meaning of section 45(c)(7)(A) is made according to rules similar to the rules under section 45(e)(2)(C). Under section 45(e)(10)(B)(ii), in the case of any calendar year after 2006, each of the dollar amounts under section 45(e)(10)(B)(i) shall be equal to the product of such dollar amount and the inflation
Section 45(d)(7) defines a qualified facility (other than a facility described in section 45(d)(6)) that burns municipal solid waste to produce electricity as any facility owned by the taxpayer which is originally placed in service after the date of enactment of section 45(d)(7) (October 22, 2004) and the construction of which begins before January 1, 2014. A qualified facility burning municipal solid waste includes a new unit placed in service in connection with a facility placed in service on or before the date of enactment of section 45(d)(7), but only to the extent of the increased amount of electricity produced at the facility by reason of such new unit.
Section 45(d)(8) provides in the case of a facility that produces refined coal, the term “refined coal production facility” means (A) with respect to a facility producing steel industry fuel, any facility (or any modification to a facility) which is placed in service before January 1, 2010, and (B) with respect to any other facility producing refined coal, any facility placed in service after the date of the enactment of the American Jobs Creation Act of 2004 (October 22, 2004) and before January 1, 2012. Section 45(d)(9) defines a qualified facility producing qualified hydroelectric production described in section 45(c)(8) as (i) any facility producing incremental hydropower production, but only to the extent of its incremental hydropower production attributable to efficiency improvements or additions to capacity described in section 45(c)(8)(B) placed in service after the date of enactment of section 45(d)(9)(A)(i) (August 8, 2005) and before January 1, 2014; and (ii) any other facility placed in service after the date of enactment of section 45(d)(9)(A)(ii) (August 8, 2005) and the construction of which begins before January 1, 2014. Section 45(d)(9)(B) provides that in the case of a qualified facility described in section 45(d)(9)(A), the 10-year period referred to in section 45(a) is treated as beginning on the date the efficiency improvements or additions to capacity are placed in service. Section 45(d)(9)(C) provides that for purposes of section 45(d)(9)(A)(i), an efficiency improvement or addition to capacity is treated as placed in service before January 1, 2014, if the construction of such improvement or addition begins before such date.
Section 45(d)(10) provides in the case of a facility that produces Indian coal, the term “Indian coal production facility” means a facility which is placed in service before January 1, 2009.
Section 45(d)(11) provides in the case of a facility producing electricity from marine and hydrokinetic renewable energy, the term “qualified facility” means any facility owned by the taxpayer which (A) has a nameplate capacity rating of at least 150 kilowatts, and (B) which is originally placed in service on or after the date of the enactment of section 45(d)(11)(B) (October 3, 2008) and the construction of which begins before January 1, 2014.
Section 45(e)(8)(A) provides that the refined coal production credit is an amount equal to $4.375 per ton of qualified refined coal (i) produced by the taxpayer at a refined coal production facility during the 10-year period beginning on the date the facility was originally placed in service, and (ii) sold by the taxpayer (I) to an unrelated person and (II) during the 10-year period and the tax year. Section 45(e)(8)(B) provides that the amount of credit determined under section 45(e)(8)(A) is reduced by an amount which bears the same ratio to the amount of the increase as (i) the amount by which the reference price of fuel used as feedstock (within the meaning of section 45(c)(7)(A)) for the calendar year in which the sale occurs exceeds an amount equal to 1.7 multiplied by the reference price for such fuel in 2002, bears to (ii) $8.75. Section 45(e)(8)(D)(ii)(I) provides that in the case of a taxpayer who produces steel industry fuel, section 45(e)(8)(A) shall be applied by substituting “$2 per barrel-of-oil equivalent” for “$4.375 per ton.” Section 45(e)(8)(D)(ii)(II) provides that in lieu of the 10-year period referred to in sections 45(e)(8)(A)(i) and 45(e)(8)(A)(ii)(II), the credit period shall be the period beginning on the later of the date such facility was originally placed in service, the date the modifications described in section 45(e)(8)(D)(iii) were placed in service, or October 1, 2008, and ending on the later of December 31, 2009, or the date which is 1 year after the date such facility or the modifications described in section 45(e)(8)(D)(iii) were placed in service. Section 45(e)(8)(D)(ii)(III) provides that section 45(e)(8)(B) (dealing with the phaseout of the credit) will not apply.
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information regarding this notice contact Martha M. Garcia on (202) 622–3110 (not a toll-free call).
26 CFR 1.263(a)–1: Capital expenditures; in gen- eral. (Also: §§ 162 and 446)
Rev. Proc. 2013–24
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