The Second Circuit has affirmed the Tax Court’s rulings against Soroban Capital Partners LP, holding that the firm’s three principals were not “limited partners” for purposes of the self-employment tax exclusion found in I.R.C. § 1402(a)(13), despite formally holding limited partner status under Delaware law. Under the Internal Revenue Code, a partner’s distributive share of partnership income is generally treated as self-employment income subject to the 15.3 percent self-employment tax on income up to $184,500 in 2026 (2.9 percent rate above that threshold), which funds Social Security and Medicare. Section 1402(a)(13), however, excludes from that tax the distributive share of a “limited partner, as such,” other than guaranteed payments for services rendered.
