TITLE 26. INTERNAL REVENUE CODE § 267. Losses, expenses, and interest with respect to transactions between related taxpayers., 26 USCS § 267


Summary

(a) In general.
(1) Deduction for losses disallowed. No deduction shall be allowed in respect of any loss from the sale or exchange of property, directly or indirectly, between persons specified in any of the paragraphs of subsection (b). The preceding sentence shall not apply to any loss of the distributing corporation (or the distributee) in the case of a distribution in complete liquidation.
(2) Matching of deduction and payee income item in the case of expenses and interest. If—
(A) by reason of the method of accounting of the person to whom the payment is to be made, the amount thereof is not (unless paid) includible in the gross income of such person, and
(B) at the close of the taxable year of the taxpayer for which (but for this paragraph) the amount would be deductible under this chapter [26 USCS §§ 1 et seq.], both the taxpayer and the person to whom the payment is to be made are persons specified in any of the paragraphs of subsection (b),
then any deduction allowable under this chapter...