A limited partnership classified as a TEFRA partnership was not entitled to exclude its limited partners’ distributive shares from net earnings from self-employment under Code Sec. 1402(a)(13). The Tax Court found that the individuals materially participated in the partnership’s investment management business and were not acting as limited partners “as such.”

Furthermore, the Court concluded that the limited partners’ roles were indistinguishable from those of active general partners. Accordingly, their distributive shares were includible in net earnings from self-employment under Code Sec. 1402(a) and subject to tax under Code Sec. 1401. The taxpayer’s argument that the partners’ actions were authorized solely through the general partner was found unpersuasive. The Court emphasized substance over form and found that the partners’ conduct and economic relationship with the firm were determinative.

Additionally, the Court held that the taxpayer failed to meet the requirements under Code Sec. 7491(a) to shift the burden of proof because it did not establish compliance with substantiation and net worth requirements. Lastly, the Tax Court also upheld the IRS’s designation of the general partner LLC as the proper tax matters partner under Code Sec. 6231(a)(7)(B), finding that the attempted designation of a limited partner was invalid because an eligible general partner existed and had the legal authority to serve.

Soroban Capital Partners LP, TC Memo. 2025-52, Dec. 62,665(M)