IRS Rules on Section 382 Ownership Changes in Cross-Border Acquisition Involving Public Groups

IRS Greenlights Method for Determining Overlapping Public Group Ownership in Cross-Border Acquisition

The IRS has approved a taxpayer’s methodology for calculating overlapping public group ownership in a cross-border acquisition, providing a non-precedential roadmap for preserving net operating loss (NOL) carryforwards under Section 382 of the Internal Revenue Code. In a private letter ruling (PLR) issued in response to a December 11, 2025 request, the IRS confirmed that the taxpayer’s approach to segregating and tracking public group ownership changes met the statutory requirements for determining whether an ownership change had occurred. The stakes were high: a miscalculation could have triggered Section 382 limitations, capping the taxpayer’s ability to utilize NOL carryforwards. The ruling, while binding only on the requesting taxpayer, signals the IRS’s willingness to endorse structured methodologies for navigating the complex interplay between public group ownership shifts and NOL preservation in cross-border transactions. Taxpayers in similar deals now have a clearer framework for structuring acquisitions without inadvertently forfeiting valuable tax attributes.

Taxpayer Seeks Clarity on NOL Preservation in Complex Cross-Border Deal

The taxpayer confronted a high-stakes ambiguity under Section 382 of the Internal Revenue Code, which limits the use of net operating loss (NOL) carryforwards after an ownership change of a loss corporation. The transaction involved a publicly traded Country A corporation (Acquiring) acquiring all the stock of Target, a subsidiary of another publicly traded Country A corporation (Seller), in exchange for newly issued Acquiring stock. Immediately after the acquisition, Seller distributed the Acquiring stock it received to its shareholders pro rata based on their pre-acquisition Seller shareholdings. The taxpayer’s concern centered on whether this structure triggered an ownership change under Section 382, potentially capping its ability to utilize the Taxpayer Group’s significant NOL carryforwards.

The complexity arose from the overlapping public group shareholders—shareholders who owned less than 5% of both Acquiring and Seller. These overlapping shareholders, while individually below the 5% threshold, collectively represented a potential aggregation risk under Section 382’s public group rules. The taxpayer sought IRS confirmation that the overlapping ownership did not inadvertently create an ownership change under Section 382(g), which defines an ownership change as a 50% or greater increase in ownership by 5% shareholders over a 3-year testing period. The structure’s reliance on public group segregation rules (Treas. Reg. § 1.382-2T(j)(2)) added further uncertainty, as the IRS had not previously addressed how overlapping public groups should be treated in a cross-border acquisition where both Acquiring and Seller were publicly traded in the same jurisdiction. The taxpayer’s request hinged on whether the pro rata distribution of Acquiring stock to Seller shareholders—many of whom were also Acquiring shareholders—would be deemed an owner shift under Section 382(l)(3), thereby triggering limitations on NOL utilization.

Overlapping Public Groups: The Linchpin of the IRS's Decision

The taxpayer’s method for identifying and confirming overlapping shareholders hinged on a granular review of shareholder data, driven by the unique structure of the cross-border acquisition. Both Acquiring and Seller were publicly traded in the same jurisdiction, Country A, and operated in related industries, leading to significant overlap in their shareholder bases. Taxpayer’s management identified that certain shareholders—each holding less than 5 percent of Acquiring’s stock—also held less than 5 percent of Seller’s stock, forming what they termed the “Overlapping Public Group.” This group was not a formal entity but an empirical observation based on market behavior: funds with regional or industry-specific investment strategies likely held positions in both corporations due to their shared sector and domicile.

To validate this understanding, the taxpayer compiled a list of potential overlapping shareholders by cross-referencing the Acquiring Shareholder List with the Seller Shareholder List and reviewing public filings submitted to the Country A securities regulator. This process was not speculative; it relied on concrete, publicly available ownership data and corporate disclosures. The taxpayer then targeted the largest of these potential overlapping shareholders—specifically, the c largest holders of Acquiring stock (determined prior to the acquisition)—and sent Written Questionnaires to confirm their ownership percentages in both Acquiring and Seller immediately before the transaction. Follow-up correspondence, conducted in written, digital, or telephonic form, was used to clarify or confirm responses, ensuring the accuracy of the data.

The IRS’s acceptance of this methodology was pivotal. Under Treas. Reg. § 1.382-2T(k)(2), the determination of “actual knowledge” of an ownership change hinges on whether the corporation or its advisors possessed verifiable information about shareholder composition. The taxpayer’s diligent use of shareholder lists, public filings, and direct questionnaires provided a defensible basis for understanding the overlapping ownership structure. By treating the Overlapping Public Group as an additional indirect public group for segregation rule purposes under Treas. Reg. § 1.382-2T(j)(2), the taxpayer could properly allocate ownership shifts and avoid misapplying the Section 382 limitations. This approach did not hinge on assumptions but on a documented, repeatable process—one the IRS recognized as sufficient to establish factual awareness of the overlapping shareholder base.

IRS Approves Methodology, Paves Way for NOL Utilization

The IRS granted the taxpayer three critical rulings that collectively preserved its ability to utilize net operating loss (NOL) carryforwards following a complex cross-border acquisition. Each ruling addressed a distinct interpretive challenge under Section 382 and its implementing regulations, with direct implications for the taxpayer’s NOL utilization.

First, the IRS accepted the taxpayer’s method for determining actual knowledge under Treas. Reg. § 1.382-2T(k)(2). The agency ruled that the taxpayer’s reliance on the Acquiring Shareholder List, Seller Shareholder List, public documents, and responses to Written Questionnaires—including follow-up communications—constituted an acceptable process to establish factual awareness of overlapping shareholder ownership. This acceptance hinged on the methodology’s specificity and repeatability, not on assumptions or hypotheticals. The IRS emphasized that the taxpayer’s approach provided sufficient evidence to demonstrate actual knowledge of the overlapping public group’s composition, a prerequisite for applying the segregation rules correctly.

Second, the IRS permitted the taxpayer to treat the Overlapping Public Group as an additional indirect public group for purposes of the segregation rules under Treas. Reg. § 1.382-2T(j)(2). This ruling neutralized the presumption in Treas. Reg. § 1.382-2T(j)(2)(iii)(B)(1), which would otherwise have applied to the overlapping group. By doing so, the IRS allowed the taxpayer to properly allocate ownership shifts between the pre-acquisition and post-acquisition public groups, avoiding the misapplication of Section 382’s limitations. The segregation rules typically require separating public shareholders into distinct groups based on their acquisition timing, but the IRS recognized that the overlapping group’s dual status warranted an exception to prevent distortion in the ownership change calculation.

Third, the IRS approved the taxpayer’s method for calculating the ownership increase attributable to the Overlapping Public Group. The agency ruled that the increase in the group’s percentage ownership of the taxpayer would be measured as the difference between its ownership percentage immediately after the acquisition and its percentage immediately before the acquisition. This approach ensured that the overlapping group’s incremental ownership was accurately quantified, preventing either overstatement or understatement of the Section 382 limitation. The ruling provided clarity on how to treat overlapping ownership in the context of an owner shift, a scenario where traditional segregation rules might otherwise yield ambiguous results.

For the taxpayer, these rulings collectively safeguarded its NOL carryforwards by ensuring that the Section 382 limitation was calculated correctly. The preservation of NOL utilization hinged on the IRS’s recognition of the taxpayer’s documented process for establishing actual knowledge, the proper segregation of the overlapping public group, and the precise measurement of ownership increases. Without these rulings, the taxpayer risked misapplying the Section 382 limitation, potentially reducing its ability to offset future taxable income with prior losses. The IRS’s approval of the methodology provided the taxpayer with certainty that its NOLs would remain viable post-acquisition.

Key Representations: Taxpayer's Assurances to the IRS

The taxpayer’s representations to the IRS were not merely procedural formalities but the foundation of the ruling, as they directly addressed the statutory prerequisites for Section 382’s application. Under Section 382(k)(1), a loss corporation is defined as any corporation with a net operating loss carryover or a net unrealized built-in loss, and the taxpayer explicitly certified its status as such, ensuring the IRS could proceed under the statute’s framework. This representation was critical because it established the taxpayer’s eligibility for the NOL limitations at issue, without which the entire analysis would have been moot.

The taxpayer further represented that its sole outstanding stock during the relevant testing period was its common stock, with no other interests or obligations treated as stock for Section 382 purposes. This assurance aligned with Treas. Reg. § 1.382-2T(f), which excludes from stock classification certain instruments like debt or options unless they are economically equivalent to equity. By confirming the absence of such treated stock, the taxpayer eliminated a potential ambiguity that could have expanded the scope of the ownership change calculation, thereby preserving the integrity of the Section 382 limitation.

Equally pivotal was the taxpayer’s representation regarding its actual knowledge of the Overlapping Public Group’s members. The taxpayer acknowledged that its knowledge was limited to information obtained through the Acquiring Shareholder List, the Seller Shareholder List, a survey of Country A’s securities regulator filings to identify 5-percent shareholders, and Written Questionnaires. This representation directly engaged Treas. Reg. § 1.382-2T(k)(2), which imposes an actual knowledge standard for determining whether a corporation should have been aware of an ownership change. By disclaiming broader knowledge, the taxpayer insulated itself from the IRS’s argument that it should have uncovered additional overlapping members through more extensive due diligence. This limitation on knowledge shaped the IRS’s willingness to approve the taxpayer’s methodology, as it demonstrated compliance with the regulatory safe harbor for lack of actual knowledge.

Caveats and Limitations: What This Ruling Doesn't Cover

The IRS explicitly disclaims any broader tax treatment beyond the specific issues addressed in the ruling. The agency states that "no opinion is expressed or implied concerning the tax treatment of the Acquisition under any provision of the Code and regulations or the tax treatment of any condition existing at the time of, or effects resulting from, the Acquisition that is not specifically covered by the above rulings." This means the ruling offers no guidance on potential tax consequences unrelated to the overlapping public group ownership methodology, such as capital gains implications, foreign tax credit limitations under Section 901, or state tax consequences.

Procedurally, the ruling is strictly limited in scope. Section 6110(k)(3) of the Internal Revenue Code (which governs private letter rulings) provides that such rulings "may not be used or cited as precedent," effectively preventing taxpayers from relying on this ruling to support similar positions in future audits or litigation. The IRS further requires that "a copy of this letter must be attached to any income tax return to which it is relevant," or alternatively, that electronic filers include a statement with the letter's control number (PLR-102020-26) if submitting returns electronically.

Critically, the ruling's conclusions hinge entirely on the taxpayer's representations and the specific facts presented. The IRS notes that its analysis is based solely on the information provided by the taxpayer, and any deviation in facts—such as changes in ownership structures, valuation methodologies, or due diligence procedures—could invalidate the ruling's conclusions. This dependency on the taxpayer's disclosures underscores that the methodology approved here is not a blanket safe harbor but rather a fact-specific determination tied to the representations made.

Implications for Taxpayers: A Roadmap for Similar Transactions

The IRS’s approval of the taxpayer’s methodology in PLR-102020-26 offers a critical roadmap for other taxpayers navigating Section 382 limitations in cross-border acquisitions involving overlapping public groups. For corporations with net operating losses (NOLs) or acquirers targeting loss corporations, this ruling underscores the importance of precise shareholder analysis and documentation to avoid unintended Section 382 triggers. The methodology approved here—particularly the approach to determining actual knowledge and calculating ownership changes—provides a template for structuring transactions while preserving NOL utilization.

The ruling hinges on the taxpayer’s ability to demonstrate that overlapping public groups did not obscure the 50%+ ownership change threshold under Section 382(b), which imposes limitations on NOL deductions following an ownership change. The IRS’s analysis relied on the taxpayer’s representations that the segregation rules under Treas. Reg. § 1.382-2T(j)(2) were applied correctly, treating pre- and post-shift public groups as distinct entities to prevent double-counting. This fact-specific determination highlights a key takeaway: taxpayers must meticulously track shareholder movements, especially in transactions involving public companies where ownership structures are fluid. Failure to segregate overlapping public groups accurately could result in an understated ownership change, exposing the corporation to Section 382 limitations that could dwarf the tax benefits of the acquisition.

For cross-border deals, the ruling carries additional weight. The IRS’s approval of the taxpayer’s methodology suggests that foreign shareholder attribution and valuation methodologies for loss corporations will be scrutinized closely. Taxpayers in similar transactions must ensure that fair market value (FMV) determinations—a cornerstone of the Section 382 limitation calculation—are defensible, particularly when foreign entities are involved. The ruling also implies that actual knowledge of ownership changes can be mitigated through third-party appraisals and due diligence, but only if the taxpayer can demonstrate reliance on these safeguards in good faith.

However, the IRS’s caveat that this ruling is non-precedential under Section 6110(k)(3) cannot be overstated. The methodology approved here is tied to the specific facts presented in the ruling, and any deviation—such as changes in ownership structures, valuation assumptions, or due diligence procedures—could invalidate the IRS’s conclusions. Taxpayers should treat this ruling as a guidance tool, not a safe harbor, and consult tax advisors to tailor their strategies to the unique facts of their transactions.

Looking ahead, the IRS’s willingness to engage with complex overlapping public group scenarios may signal a broader trend toward providing clarity on Section 382’s application in cross-border and public company transactions. Taxpayers should monitor future guidance, including potential updates to Treas. Reg. § 1.382-2T, for further refinements to the segregation rules and actual knowledge standards. Until then, this ruling serves as a reminder that proactive shareholder analysis, rigorous documentation, and strategic structuring are essential to navigating Section 382’s limitations while maximizing NOL utilization in high-stakes deals.