Taxpayers may elect to treat research or experimental expenditures incurred in connection with a trade or business as currently deductible expenses, and not chargeable to their capital account. Under generally accepted accounting principles, at least some of these expenses would otherwise be treated as capital expenditures and depreciated or amortized over a period of years. The current deduction constitutes a tax expenditure, resulting in a deferral of tax similar to an interest-free loan

Origin: IRC § 174

Item Number
FY2019
FY2020
FY2021
FY2022
FY2023
2.308
45.4
42.5
32.2
17.0
3.2
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