OBBBA and 163(j): Key Tax Shifts Explained

Decoding the One Big Beautiful Bill Act's Influence on 163(j) Expense Limitations

The One Big Beautiful Bill Act (OBBBA) has indeed brought significant changes to the Internal Revenue Code Section 163(j) expense limitations, particularly benefiting many businesses by easing the restrictions on interest deductibility. These updates, largely effective for tax years beginning after December 31, 2024, aim to provide greater flexibility for companies managing their business interest expenses.

OBBBA and 163(j) Key Tax Shifts Explained

Key Takeaways

Question: “How did the One Big Beautiful Bill Act change business interest deductions?”

The Act generally increases the amount of deductible business interest by reinstating the EBITDA-based calculation for Adjusted Taxable Income.

Question: “Can businesses still capitalize interest to avoid the 163(j) limitation after the OBBBA?”

No, for tax years beginning after December 31, 2025, the Act largely eliminates the effectiveness of electively capitalizing business interest to avoid the 163(j) limitation.

Question: “Is the One Big Beautiful Bill Act good for companies under Section 163(j)?”

Yes, the OBBBA’s revisions to Section 163(j) are generally considered taxpayer-friendly, aiming to create a more consistent and predictable tax environment for interest deductibility.

 

Q: What is the primary change in how Adjusted Taxable Income (ATI) is calculated under Section 163(j) due to the OBBBA?

A: The most notable modification is the reinstatement of EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) as the basis for calculating Adjusted Taxable Income (ATI) for Section 163(j) purposes. Previously, for tax years beginning after December 31, 2021, the calculation shifted to an EBIT (Earnings Before Interest and Taxes) approach, which was generally more restrictive as it did not allow the add-back of depreciation and amortization. By reverting to the EBITDA framework, the OBBBA effectively increases the ATI, allowing businesses to deduct a larger portion of their business interest expense. This change is particularly advantageous for capital-intensive industries and those with significant depreciation or amortization deductions, as it expands the base against which the 30% interest limitation is applied.

Q: How does the OBBBA affect the strategy of capitalizing business interest to circumvent the 163(j) limitation?

A: For tax years beginning after December 31, 2025, the Act largely eliminates the effectiveness of a common planning strategy: electively capitalizing business interest. Under prior rules, some taxpayers could capitalize interest under other Code sections (e.g., Section 263A) to avoid the 163(j) limitation entirely, treating it as part of an asset’s cost rather than an interest expense. The OBBBA now generally mandates that any business interest, even if capitalized, will retain its character as interest and remain subject to the Section 163(j) limitation. This means businesses will need to re-evaluate their financing and asset acquisition strategies, as this particular workaround will no longer provide the same tax benefits.

“By reverting to the EBITDA framework, the OBBBA effectively increases the ATI, allowing businesses to deduct a larger portion of their business interest expense.”

Q: What is the impact of the OBBBA on multinational corporations, particularly regarding foreign income in ATI calculations?

A: The OBBBA introduces a less favorable adjustment for multinational corporations. Effective for tax years beginning after December 31, 2025, certain foreign income items, specifically Subpart F income and Net CFC tested income (formerly known as GILTI, or Global Intangible Low-Taxed Income), along with Section 78 gross-up amounts, will be excluded from the calculation of domestic ATI. For multinational groups that previously relied on including these foreign income components to boost their ATI and thus their deductible interest, this exclusion may lead to a reduction in their overall ATI, potentially limiting their business interest deductions.

Q: Did the definition of “floor plan financing” change, and how does this affect businesses?

A: Yes, the OBBBA expands the definition of “motor vehicles” for floor plan financing interest purposes. This expanded definition now includes non-self-propelled trailers and campers designed for recreational, camping, or seasonal use that are towed by or affixed to a motor vehicle. This is effective for tax years beginning after December 31, 2024. For businesses involved in the sale or lease of these types of vehicles, such as RV dealerships, this expansion means that interest incurred on financing this specific inventory will qualify for the floor plan financing exception, allowing for a greater deduction of interest expense that is not subject to the 30% ATI limitation.

Q: Is the overall impact of the OBBBA on Section 163(j) generally considered favorable for taxpayers?

A: Despite some specific limitations introduced, such as the changes to interest capitalization and the exclusion of certain foreign income from ATI, the general consensus is that the OBBBA’s revisions to Section 163(j) are largely taxpayer-friendly. The permanent reinstatement of the EBITDA-based ATI calculation is a significant benefit for many businesses, especially those with substantial capital investments, as it increases their capacity to deduct business interest. While the Act closes some planning opportunities, it aims to create a more consistent and predictable tax environment for interest deductibility, which can lead to increased cash flow and simpler compliance for numerous entities.

Disclaimer: This article provides general information and should not be considered professional financial or tax advice. Please consult with a qualified CPA or financial advisor for guidance specific to your individual business needs.

 

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Matt’s background in federal, state, and local tax enables him to provide extensive services to the firm’s clients in the areas of tax compliance and consulting across a spectrum of industries.


Matt Dickert, CPA

mdickert@bradyware.com


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Kristin is a Brady Ware Shareholder with over a decade of experience, specializing in tax services for pass-through entities and complex individual tax situations. She serves clients across various industries, including real estate, wholesaling, and professional services. Kristin provides strategic guidance to help clients navigate their financial landscape confidently.


Kristin Krabacher, CPA

kkrabacher@bradyware.com


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