One-Time Corporate Spin-Off Interest Expenses as Nonbusiness Income: Murphy Oil USA, Inc. v. Hudson (2024 Ark. 179)

Introduction

This commentary examines the Arkansas Supreme Court’s decision in Jim Hudson, in His Official Capacity as Secretary and Director of the Arkansas Department of Finance and Administration v. Murphy Oil USA, Inc. (2024 Ark. 179). At issue was whether interest expenses incurred in a one-time 2013 corporate spin-off constitute “business” or “nonbusiness” expenses under Arkansas’s version of the Uniform Division of Income for Tax Purposes Act (UDITPA) and whether those expenses are deductible against Arkansas corporate income tax. Murphy Oil USA (“Murphy”), newly domiciled in Arkansas following its separation from Murphy Oil Corporation, amended its 2014–2015 returns to claim a full Arkansas deduction for roughly $70 million in interest. The Department of Finance and Administration (“DFA”) denied the refund, DFA argued (1) the interest was properly apportioned as business income; (2) Arkansas Code Ann. § 26-51-431(c) disallows deductions allocable to nonbusiness income; and (3) it would be unfair to allow a refund in Arkansas absent parallel amendments in other states. The circuit court granted summary judgment to Murphy; the Supreme Court affirmed. This decision establishes new precedent on classifying extraordinary, corporate-lifetime transactions under UDITPA and the scope of nonbusiness-income deductions in Arkansas.

Summary of the Judgment

Murphy’s 2013 spin-off from Murphy Oil Corporation was a one-time, nonrecurring transaction outside its ordinary fuel-retail business. Under the UDITPA’s transactional and functional tests, that interest expense is “nonbusiness income” and allocable 100 percent to Arkansas, its domicile.
Ark. Code Ann. § 26-51-431(c)(3) bars deductions allocable to nonbusiness income only when that income is wholly exempt from Arkansas taxation. Here, the nonbusiness interest expense is taxed in Arkansas, so the statute does not disallow Murphy’s deduction.
The “fundamental fairness” argument—that Murphy should not reap a multistate windfall absent parallel filings elsewhere—is not a basis for refusing a valid Arkansas refund. Issues of uniformity and multistate fairness lie with the legislature, not the courts.
Summary judgment for Murphy was correct; the decision is affirmed.

Analysis

1. Precedents Cited

Getty Oil (309 Ark. 257, 831 S.W.2d 121, 1992): A subsidiary’s one-time intragroup note transfer was nonbusiness income under UDITPA. The Court held that isolated, nonrecurring transactions fall outside the “regular course of business” transactional test.
American Honda (2020 Ark. 349, 610 S.W.3d 633): Recurring sales of environmental credits over multiple years were business income because they satisfied the transactional and functional tests—integral to Honda’s core operations.
Kroger Co. v. Kansas (12 P.3d 889, 2000): Kansas Supreme Court treated once-in-a-corporate-lifetime defensive borrowing and dividend distribution to thwart a hostile takeover as nonbusiness income and allocated related interest expense solely to the domicile state.
Uniform Division of Income for Tax Purposes Act: The UDITPA definitions of “business income” (Ark. Code Ann. § 26-51-701(a)) and “nonbusiness income” (§ 26-51-701(e)) provide the two-pronged transactional and functional tests for classification.

2. Legal Reasoning

Transactional Test: Income is “business income” if it arises from transactions in the regular course of the taxpayer’s trade or business. Murphy’s spin-off was a singular event—its first since incorporation in 1992—and unrelated to its day-to-day retail fuel operations. It failed the transactional test and fell into the nonbusiness category.

Functional Test: Income from the acquisition, management, or disposition of property must be integral to the taxpayer’s regular operations to be “business income.” Murphy borrowed $650 million and immediately remitted the proceeds to its former parent; it did not deploy the funds to manage or acquire its fuel- retail assets. The spin-off financing was not functionally integral, so it did not meet the functional test either.

Statutory Deduction Disallowance (Ark. Code Ann. § 26-51-431(c)): Subsections (c)(1)–(2) disallow deductions allocable to income “wholly exempt from Arkansas taxation.” Subsection (c)(3) disallows deductions allocable to nonbusiness income without the “wholly exempt” qualifier. The plain language mandates that any expense allocable to nonbusiness income is nondeductible—regardless of its taxation status—but only if the nonbusiness income is completely outside Arkansas’s taxing jurisdiction. Because Arkansas does tax that nonbusiness income—Murphy’s amended returns allocated the interest expense to Arkansas—(c)(3) does not apply.

Uniform Fairness Argument: The Court refused to inject a de facto “multistate fairness” rule into UDITPA. Arkansas’s duty is to apply its own statutes; whether Murphy amends returns elsewhere is not a constitutional or statutory bar to an Arkansas refund. Uniformity concerns belong to the legislature and multistate compacts, not the judiciary.

3. Impact on Future Cases and Tax Law

Affirms that one-time, extraordinary corporate events are nonbusiness income under UDITPA, reinforcing the distinction from recurring operational activities.
Clarifies application of § 26-51-431(c)(3): expenses allocable to nonbusiness income remain deductible if that income itself is taxable in Arkansas.
Limits the executive branch’s interpretive reach over UDITPA classifications, emphasizing de novo judicial review and strict statutory interpretation.
Signals to multistate taxpayers that they may secure full-state deductions in domicile jurisdictions for nonbusiness items—even if they have not yet amended returns elsewhere.
Informs Arkansas’s legislature of potential revenue impacts and may prompt statutory refinement of the nonbusiness deduction rules or multistate fairness provisions.

Complex Concepts Simplified

Business vs. Nonbusiness Income: “Business income” is money you earn by doing what you normally do all the time. “Nonbusiness income” is money from unusual, one-time events. Think of selling your bakery’s ovens (business) versus selling your house (nonbusiness).
Transactional Test: Did this transaction happen as part of normal, repeated business activities? If not, it’s nonbusiness.
Functional Test: Is the transaction essential to running your daily business? If the proceeds went right out the door for something one-off and not to buy/store goods or manage inventory, it fails this test.
Ark. Code Ann. § 26-51-431(c): This rule says: “If you get a deduction for an expense, but that expense is tied to income we aren’t taxing here, you can’t deduct it.” Subsections (1)–(2) add a qualifier “we aren’t taxing that income at all.” Subsection (3) has no qualifier—so on its face, it disallows any expense tied to nonbusiness income. But since Arkansas does tax Murphy’s nonbusiness income, (3) doesn’t kick in.

Conclusion

The Arkansas Supreme Court’s decision in Murphy Oil USA, Inc. v. Hudson sets a clear precedent that extraordinary, nonrecurring corporate events—such as a once-in- corporate-lifetime spin-off—are nonbusiness income under UDITPA and allocable 100 percent to the domicile state. It further clarifies that the Arkansas deduction- disallowance statute (§ 26-51-431(c)) precludes only those expenses tied to nonbusiness income that Arkansas does not tax at all. Because Murphy’s nonbusiness income was taxed in Arkansas, its full deduction was permissible. The ruling reaffirms strict adherence to statutory text and legislative intent, underscores de novo judicial review of agency interpretations, and delineates the limits of “fairness” arguments in the face of clear legislative directives. Practitioners and multistate businesses should take heed: the nature and frequency of transactions, and the precise language of deduction statutes, will determine South’s corporate-income deductions going forward.