Document Type

Article

Publication Date

2026

Abstract

The One Big Beautiful Big Act (OBBBA) of 2025 is generally consideredto be a continuation of the Tax Cuts and Jobs Act (TCJA) of 2017.1Thatis definitely true as far as the individual tax provisions are concerned, be-cause the OBBBA merely made permanent the TCJA provisions with minorchanges, such as increasing the cap on the state and local tax deduction from$10,000 to $40,000. For the corporate tax, the OBBBA continued some of thechanges in the TCJA (such as expensing) while relaxing others (such as amorti-zation of research and experimentation (R&E) expenditures and a stricter limiton interest deductions) without changing the overall result of a much lower cor-porate tax rate than before the TCJA. Overall, these changes were made possibleby the more generous allowance for increasing the deficit in the OBBBA vs. theTCJA (which had to be brought under a $1.5 trillion increase within the 10-yearbudget window).

Comments

© 2026 R. S. Avi-Yonah. This article is reprinted with the publisher’s permission from International Tax Journal, a bimonthly journal published by CCH Incorporated. Copying or distribution without the publisher’s permission is prohibited.

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