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Notice 2023-63

SECTION 2. BACKGROUND

Internal Revenue Bulletin 2023-39 · 2026-10-03 edition · updated 2026-10-04 · United States

.01 Prior law treatment of research or experimental expenditures .

(1) In general . Former § 174 was first enacted in 1954 to provide certainty to taxpayers regarding the treatment of otherwise capitalizable research or experimental expenditures with no determinable useful life. See H.R. Rep. No1337, 83d Cong., 2d Sess. 28 (1954); S. Rep. No. 1622, 83d Cong., 2d Sess. 33 (1954). Before the enactment of former § 174, courts consistently held that the law required capitalization of product research and development costs, including production costs of tangible property used in the research process. Under such prior law, expenditures related to a taxpayer’s research and experimentation generally were capitalized and held in suspense until the taxpayer could determine (1) whether or not the research had failed; and (2) if the research was successful, whether or not the research resulted in property that had a useful life determinable with reasonable accuracy.

Former § 174 allowed taxpayers to elect to deduct research or experimental expenditures paid or incurred in connection with a trade or business as currently deductible expenses, to capitalize and amortize such expenditures over a period of not less than 60 months, or to charge such expenditures to capital account.

(2) Definition of research or experi- mental expenditures under former § 174 .

The provisions of § 1.174-2 address the scope and definition of research or experimental expenditures under former § 174. Specifically, § 1.174-2(a)(1) provides

that the term “research or experimental expenditures” means those expenditures incurred in connection with a taxpayer’s trade or business that represent research and development costs in the experimental or laboratory sense, and generally includes all such costs incident to the development or improvement of a product or a component or subcomponent of the product, as well as the costs of obtaining a patent. Expenditures represent research and development costs in the experimental or laboratory sense if they are for activities intended to discover information that would eliminate uncertainty concerning the development or improvement of a product. Section 1.174-2(a)(3) defines the term “product” to include any pilot model, process, formula, invention, technique, patent, or similar property, and includes products to be used by the taxpayer in its trade or business as well as products to be held for sale, lease, or license.

Section 1.174-2(a)(10) and (b)(3) generally provide that former § 174 also applies to expenditures paid or incurred by a taxpayer for research or experimentation carried on by another person or organization (such as a research institute, foundation, engineering company, or similar contractor) on behalf of the taxpayer, provided that such expenditures are made at the taxpayer’s order and risk. However, § 1.174-2 does not explicitly address expenditures paid by a contractor for research or experimentation carried on for another person or organization.

Section 1.174-2(a) also provides guidance on expenditures that are not subject to former § 174, including costs paid or incurred in the production of a product after the elimination of uncertainty concerning the development or improvement of the product, and expenditures for: quality control testing, efficiency surveys, management studies, consumer surveys, advertising or promotions, the acquisition of another’s product, and research in connection with literary, historical or similar projects. In addition, § 1.174-2(b) and former § 174(c) provide that any expenditure for the acquisition or improvement

1 Unless otherwise specified, all “section” or “§” references are to sections of the Code or the Income Tax Regulations (26 CFR part 1).

Bulletin No. 2023–39 919 September 25, 2023

of land or depreciable property to be used in connection with the research or experimentation and of a character which is subject to the allowance under § 167 or § 611 are not research or experimental expenditures. However, allowances for depreciation and depletion with respect to such property are treated as research or experimental expenditures. Finally, § 1.174-2(c) and former § 174(d) provide that the provisions of former § 174 are not applicable to any expenditures paid or incurred for the purpose of ascertaining the existence, location, extent, or quality of any deposit of ore, oil, gas, or other mineral.

(3) Software development . Prior to the effective date of the TCJA amendments to former § 174, section 5 of Rev. Proc. 2000-50, 2000-2 C.B. 601, permitted taxpayers to treat costs to develop computer software that were not otherwise treated as research or experimental expenditures under former § 174 as currently deductible expenses or capital expenditures that are amortized over 60 months or 36 months. Accordingly, under section 5 of Rev. Proc. 2000-50, costs to develop computer software that did not otherwise meet the definition of research or experimental expenditures under former § 174 were afforded generally similar treatment to research or experimental expenditures under former § 174. Rev. Proc. 2000-50 does not define software development or otherwise describe software development activities. See also Kellett v. Commissioner, T.C. Memo. 2022-62 (discussing, and questioning the statutory support for, deduction of software development expenditures under Rev. Proc. 2000-50). .02 Treatment of research or experi- mental expenditures under the TCJA .

(1) Requirement to capitalize and amortize SRE expenditures . Section 13206(a) of the TCJA amended former § 174 for amounts paid or incurred in taxable years beginning after December 31, 2021. For such amounts, § 174(a)(1) disallows deductions for SRE expenditures, except as provided in § 174(a)(2). Section 174(a)(2) requires taxpayers to charge SRE expenditures to capital account and allows amortization deductions of such capitalized expenditures ratably over the applicable § 174 amortization period,

beginning with the midpoint of the taxable year in which such expenditures are paid or incurred. As used in this notice, the term “applicable § 174 amortization period” refers to a 5-year (60-month) period in the case of SRE expenditures attributable to domestic research or a 15-year (180month) period in the case of SRE expenditures attributable to foreign research, as defined in section 3.03 of this notice.

(2) Definition of SRE expenditures . Section 174(b), as amended by section 13206(a) of the TCJA, defines “SRE expenditures” to mean, with respect to any taxable year beginning after December 31, 2021, research or experimental expenditures that are paid or incurred by the taxpayer during such taxable year in connection with the taxpayer’s trade or business. See Snow v. Commissioner, 416 U.S. 500 (1974) (“in connection with” a trade or business is broader than “in carrying on” a trade or business).

(3) Software development . Section 13206(a) of the TCJA added new § 174(c) (3) to require that any amount paid or incurred in connection with the development of any software in taxable years beginning after December 31, 2021, be treated as a research or experimental expenditure (and thus an SRE expenditure to the extent paid or incurred by the taxpayer during the taxable year in connection with the taxpayer’s trade or business).

(4) Amortization deductions for dis- posed of, retired, or abandoned property . Section 13206(a) of the TCJA added new § 174(d) to provide that deductions of SRE expenditures may not be taken on account of the disposition, retirement, or abandonment of property with respect to which such SRE expenditures are paid or incurred. If such property is disposed of, retired, or abandoned during the applicable § 174 amortization period, § 174(d) requires that the amortization deductions for such SRE expenditures continue over that period.

(5) Other changes to former § 174 . Section 13206(a) of the TCJA redesignated former § 174(c) to § 174(c)(1) and former § 174(d) to § 174(c)(2), removed former § 174(e), which provided that only reasonable expenditures are considered research or experimental expenditures under former § 174, and also removed former § 174(f), which contained

cross-references to basis adjustments under § 1016(a)(14) and to an election for 10-year amortization under § 59(e). (6) Change in method of accounting . (a) TCJA requirement . Section 13206(b) of the TCJA requires taxpayers to apply the provisions of § 174, as amended by section 13206(a) of the TCJA, as a change in method of accounting for purposes of § 481, initiated by the taxpayer and made with the consent of the Secretary of the Treasury or her delegate, and applied on a cutoff basis to SRE expenditures paid or incurred in taxable years beginning after December 31, 2021. Thus, no adjustments under § 481(a) are permitted or required with respect to research or experimental expenditures paid or incurred in taxable years beginning before January 1, 2022.

(b) Procedural guidance . On December 12, 2022, the Treasury Department and the IRS issued Rev. Proc. 2023-8, 2023-3 I.R.B. 407, to provide procedures for taxpayers to obtain automatic consent to change methods of accounting to comply with § 174, as amended by the TCJA. On December 29, 2022, the Treasury Department and the IRS issued Rev. Proc. 2023-11, 2023-3 I.R.B. 417, to modify and supersede Rev. Proc. 2023-8. The change in method of accounting provided by Rev. Proc. 2023-11 was subsequently included in section 7.02 of Rev. Proc. 2023-24, 2023-28 I.R.B. 1207. Section 7.02 of Rev. Proc. 2023-24 implements the requirement imposed by § 13206(b) of the TCJA that a taxpayer must make this change in method of accounting on a cutoff basis if the change was made during the taxpayer’s first taxable year beginning after December 31, 2021. However, section 7.02 of Rev. Proc 2023-24 provides that a taxpayer making the change for a taxable year subsequent to the taxpayer’s first taxable year beginning after December 31, 2021, is required to make that change with a modified § 481(a) adjustment that takes into account only SRE expenditures paid or incurred in taxable years beginning after December 31, 2021. Section 7.02(7) of Rev. Proc. 2023-24 also provides that a taxpayer that changes its method of accounting for SRE expenditures under the revenue procedure will receive limited audit protection. Specifically, audit protection will not apply for expenditures paid or incurred in

September 25, 2023 920 Bulletin No. 2023–39

year, Taxpayer amortizes $12,000 ($60,000 / 60 months × 12 months) each year, or $48,000 total. In 2027, Taxpayer amortizes the remaining $10,000 ($60,000 / 60 months × 10 months).

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