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Notice 2023-63

SECTION 4. SCOPE OF

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

SECTION 174

.01 Purpose . The Treasury Department and the IRS intend to propose rules in forthcoming proposed regulations consistent with the interim guidance provided in this section 4, which provides taxpayers with clarity in determining whether expenditures are SRE expenditures subject to capitalization and amortization under § 174.

.02 Definition of SRE expenditures and other relevant terms . For purposes of this notice:

(1) Terms used in § 1.174-2 . Unless otherwise provided, all terms used in this notice have the same meaning as those in § 1.174-2. For example, the term product has the meaning set forth in § 1.174-2(a) (3).

(2) SRE expenditures defined . The term SRE expenditures means, with respect to any taxable year beginning after December 31, 2021, research or experimental expenditures (as defined in section 4.02(3) of this notice), which are paid or incurred by the taxpayer during such taxable year in connection with the taxpayer’s trade or business.

(3) Research or experimental expendi- tures defined . The term research or exper- imental expenditures means expenditures that—

(a) satisfy the requirements under § 1.174-2 to be research or experimental expenditures, or

(b) are paid or incurred in connection with the development of any computer software (as provided in section 5 of this notice), regardless of whether such expenditures are research or experimental expenditures under § 1.174-2. See section 6 of this notice for rules to determine whether expenditures paid or incurred pursuant to a contract meet the definition of research or experimental expenditures under this section 4.02(3).

(4) SRE activities defined . The term SRE activities means—

(a) software development activities described in section 5.03 of this notice, or

(b) research or experimental activities described in § 1.174-2 (that is, activities

taxable years beginning before January 1, 2022. Audit protection also will not apply for expenditures paid or incurred in taxable years beginning after December 31, 2021, if a change in method of accounting is made for the taxable year immediately subsequent to the first taxable year beginning after December 31, 2021. See section 10.02 of this notice for additional procedural guidance the Treasury Department and IRS intend to issue.

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▸Contents — Internal Revenue Bulletin 2023-39

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