US Inbound: Tax Cuts and Jobs Act

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

US Inbound: Tax Cuts and Jobs Act

intl-updates-small.jpg

The Tax Cuts and Jobs Act proposes the most significant changes in US tax law in more than three decades.

The 'Act' at this point is only two bills: the House bill was approved by the House and the Senate bill was approved by the Senate. A conference committee will need to reconcile them.

While the language and provisions of the final bill are not certain at this time, we thought it would be helpful to discuss some of the financing provisions that can affect inbound planning.

Interest deductions of a US corporation would generally be limited to 30% of the taxpayer's adjusted taxable income plus any business interest income under amended § 163(j) rules. The 30% interest deduction cap applies to all interest deductions, not just related-party interest.

Under new § 163(n) in the Tax Cuts and Jobs Act, a US corporation's interest deduction relative to the worldwide group's interest deduction could be no greater than 110% of the US corporation's earnings before interest, taxes, depreciation, and amortisation (EBITDA) relative to the worldwide group's EBITDA. In other words, a US corporation's interest deductions would generally be restricted if it were more highly leveraged relative to the rest of the worldwide group. The EBITDA of US corporations includes the EBITDA of any disregarded entities, but generally does not include any distributions received from foreign subsidiaries.

The Senate proposal reduces interest deduction to the product of the net interest expense multiplied by the debt-to-equity differential percentage of the worldwide affiliated group. The asset amounts taken into account in the equity calculation are based on the assets' adjusted bases.

Section 163(n) would apply to corporations that file consolidated financial statements that include at least one US corporation, one foreign corporation, and report annual gross receipts in excess of $100 million.

When both the new § 163(j) and the new § 163(n) interest limitations apply, the one that results in the greater disallowance would take precedence.

The Senate proposal also would require "applicable taxpayers" to pay a minimum tax of 10% of "modified taxable income", i.e. taxable income computed without deducting "base erosion payments" or the "base erosion percentage" of net operating loss carryovers. An applicable taxpayer would mean a taxpayer with at least $500 million of annual average gross receipts and a base erosion percentage of at least 4%.

A base erosion payment would mean any amount that is paid or accrued to a related foreign person (with "relatedness" broadly defined) and for which a deduction is allowable (interest, royalties, services, etc.), including any amount paid or accrued in connection with depreciable or amortisable property.

The House bill's version of this provision is an excise tax on such payments, which seems less likely to be enacted.

The new § 267A provides that no deduction is allowed for amounts paid or accrued to a related party in hybrid transactions or with hybrid entities.

In another change, Grecian Magnesite Mining v. Commissioner, 149 T.C. No. 3 (2017), would be overturned prospectively by a statutory change. It dealt with a foreign partner's sale of its partnership interest in a partnership that is engaged in a US business. It would be enforced by subjecting the buyer to a withholding tax.

Fuller-James
Forst-David

Jim Fuller (jpfuller@fenwick.com) and David Forst (dforst@fenwick.com)

Fenwick & West

Website: www.fenwick.com

more across site & shared bottom lb ros

More from across our site

While rarely the sole driver of a combination, tax is becoming an increasingly important part of firms' efforts to keep up with client expectations
New research, which suggests LLMs can silently corrupt complex documents, should alert tax and legal teams relying on AI to handle iterative drafting and compliance workflows
Maintaining increased funding for HMRC is a ‘high possibility’ if he becomes PM, ITR has also heard
Awards
ITR is delighted to reveal all the shortlisted nominees for the 2026 Europe Tax Awards
The firm has hired a team of private client lawyers from Withers to launch in New York and Connecticut, though ITR analysis suggests it faces stiff competition
The ability of tax authorities to receive and analyse data is becoming ‘quite advanced’, warns Stuart Lang, head of EY’s compliance co-sourcing solution
The Court of Appeal ruling clarifies that treaty benefits are not abusive where transactions are commercially driven, providing greater certainty on “main purpose” anti-avoidance tests
Despite the Netherlands featuring an unusual concentration of World Tax-ranked technology-led providers, sources believe there’s a long way to go to challenge the established players
Ethics seems to be playing a subservient role to an entitlement culture borne out of a pervasive ‘revenue at all costs’ mentality at the big four
Historical World Tax data suggests the ‘largest law firm merger in history’ may not pose a serious threat to the world's leading tax practices
Gift this article