On July 4, 2025, President Trump signed the One Big Beautiful Bill Act into law (the new law). The new law includes permanent extensions of three key business-favorable tax provisions from the 2017 Tax Cuts and Jobs Act (TCJA), which are substantially similar to the provisions in the proposed Senate Finance text that was released on June 16, 2025. We have released prior alerts addressing the House version of the bill and the Senate Finance Committee version of the bill.
Bonus Depreciation
The new law allows an immediate 100% depreciation deduction for qualified property acquired, planted, or grafted, as applicable, after January 19, 2025. The new law also retains the transitional election from the Senate Finance Committee proposal, such that taxpayers may elect to apply a reduced depreciation deduction of 40% (or 60% in the case of property with a longer production period and certain aircraft) with respect to certain qualified property placed in service during the first tax year ending after January 19, 2025. The new law further clarifies that property is treated as acquired no later than the date on which a written binding contract is entered into with respect to the acquisition.
Proposed New Section 168(n)
The House bill originally introduced new Section 168(n), which provides an election whereby taxpayers may deduct 100% of the adjusted basis of qualified production property in the year such property is placed in service. The new law makes no changes to the version proposed by the Senate Finance Committee.
Generally, if a taxpayer makes an election, the depreciation deduction would include an allowance of 100% of the adjusted basis of the qualified production property in the year such property is placed in service. Qualified production property is generally nonresidential real property, such as factories. In order to be eligible for the election, the property must begin construction after January 19, 2025, and before January 1, 2029, and the property must be placed in service before January 1, 2031. The new law informs taxpayers on how to make the election, which is generally irrevocable except in “extraordinary circumstances” with the Treasury Secretary’s consent. Section 1245 depreciation recapture applies if the property ceases to be used as qualified property within ten years of its placed-in-service date. Section 168(n) is effective with respect to property placed in service after July 4, 2025.
Adjustments to Section 163(j)
The new law permanently reinstates the addback for depreciation, amortization, and depletion deductions for purposes of determining adjusted taxable income (ATI) for tax years beginning after December 31, 2024. The new law also retains the provision from the Senate Finance Committee proposal that permanently excludes subpart F and GILTI inclusions, along with the associated Section 78 gross-up amounts, from the calculation of a taxpayer’s ATI for purposes of the Section 163(j) limitation. This exclusion is effective for tax years beginning after December 31, 2025.
The new law also retains the Senate Finance Committee’s new ordering rule that applies the Section 163(j) limitation on business interest expense prior to any elective capitalization. Accordingly, under the new law, Section 163(j) will apply to business interest regardless of whether the taxpayer would otherwise deduct or capitalize the interest expense. All capitalized interest, other than interest required to be capitalized under Section 263(g) or Section 263A(f), would be business interest subject to the limitation. This provision is effective for tax years beginning after December 31, 2025.
R&E Expensing
The new law permanently allows a current deduction with respect to domestic research or experimental (R&E) expenditures paid or incurred in tax years beginning after December 31, 2024. To effect this change to Section 174 as modified by the TCJA, the new law introduces new Section 174A, which would allow taxpayers to deduct domestic R&E expenditures or make an election to capitalize and amortize such expenditures ratably over sixty months. Foreign R&E expenses are still required to be capitalized and amortized over 15 years pursuant to Section 174. The new law retains the small business taxpayer election permitting certain taxpayers to retroactively deduct domestic R&E expenditures paid or incurred after December 31, 2021. The new law also retains the election to deduct unamortized domestic R&E in the first tax year beginning after December 31, 2024, or ratably over the two-tax-year period beginning with the first tax year beginning after December 31, 2024.
[View source.]