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Ext. PublicationFifth Circuit Clarifies Scope of Limited Partner Self-Employment Tax Exclusion
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On January 16, 2026, the U.S. Court of Appeals for the Fifth Circuit issued its decision in Sirius Solutions, L.L.L.P. v. Commissioner, 2026 WL 1256000. The case addresses the scope of the self-employment tax exclusion for limited partners under Internal Revenue Code (IRC) Section 1402(a)(13).
Background of the Case
Sirius Solutions, L.L.L.P. operated a business consulting enterprise through a state law limited liability limited partnership (LLLP). The individual limited partners reported their distributive shares of partnership income as excluded from self-employment tax, relying on the limited partner exception in Section 1402(a)(13).
The IRS audited Sirius’ 2014 tax year and asserted that the limited partners’ distributive shares did not qualify for the Section 1402(a)(13) exclusion. In support of its position, the IRS relied heavily on its recent victories in Soroban Capital Partners v. Commissioner and Denham Capital Management LP v. Commissioner. In those cases, the IRS advanced a functional analysis approach to determine limited partner status, under which a partner’s eligibility for the exclusion depends on the nature and extent of services performed.
The Functional Analysis Applied by the Tax Court
Under the functional analysis applied in Soroban and Denham, courts weighed factors such as the services provided by the partner, the relationship between partnership income and the partner’s efforts, the partner’s authority to bind the partnership and whether the partner functioned as a mere passive investor.
The Tax Court in Sirius concluded that it was bound by Soroban and Denham and therefore upheld the IRS’ determination. Sirius appealed.
Fifth Circuit Rejects Functional Analysis
On appeal, the Fifth Circuit framed the sole issue as the proper meaning of the term “limited partner” in IRC Section 1402(a)(13). Rejecting the functional analysis adopted by the Tax Court, the Fifth Circuit instead focused on the plain statutory text and the ordinary meaning of “limited partner” at the time of enactment.
The court examined contemporaneous definitions of “limited partner,” “limited partnership” and “general partner,” concluding that the defining characteristic of a limited partner was limited liability under state law, not the degree of services performed. Based on this textual and historical analysis, the Fifth Circuit rejected the functional analysis approach advanced by the IRS and adopted by the Tax Court.
Treatment of Guaranteed Payments
The opinion also emphasized the statute’s explicit carve-out for guaranteed payments for services, which remain subject to self-employment tax. The court reasoned that this carve-out would be unnecessary if Congress intended to deny limited partner status to partners who perform services. This reasoning confirmed that a partner may perform services and still qualify as a limited partner for purposes of Section 1402(a)(13).
Applying this interpretation, the Fifth Circuit vacated the Tax Court’s decision and ruled in favor of the taxpayer.
Dissenting Opinion Raises Policy Concerns
The decision included a dissenting opinion that would have affirmed the Tax Court. The dissent emphasized consistency with the Tax Court’s recent decisions in Soroban and Denham and expressed concern that a purely status-based interpretation could allow active service partners to avoid self-employment tax by organizing through a limited partnership structure.
The dissent also noted that Congress enacted Section 1402(a)(13) before the proliferation of modern partnership structures and suggested that the statute should be interpreted in light of economic reality rather than formal legal classifications.
Scope of the Decision
Notably, the majority opinion did not address whether members or partners in other state law entities that provide limited liability, such as limited liability companies (LLCs) or LLPs taxed as partnerships, may also qualify for the Section 1402(a)(13) exclusion. The court expressly limited its holding to state law limited partnerships and LLLPs.
Key Takeaways for Taxpayers
While Sirius represents a significant development, its application remains highly dependent on facts and circumstances, particularly with respect to entity structure, state law liability protections and the characterization of partner compensation.
The decision currently applies only within the Fifth Circuit, and taxpayers should continue to monitor pending appeals in Soroban and Denham, as those cases may result in divergent interpretations across circuits and increase the likelihood of a circuit split.
The Fifth Circuit’s holding supports a literal reading of IRC Section 1402(a)(13) under which limited partner status is determined by legal status under state law, not by the level of services performed and without applying a functional analysis test.
How Weaver Can Help
The Sirius decision highlights the importance of carefully evaluating partnership structures, operating agreements and compensation arrangements when assessing self-employment tax exposure. If you have questions about how this decision may affect your organization or would like to discuss planning considerations in light of recent case law, contact us. Our tax professionals are here to help.
©2026
