TITLE 26. INTERNAL REVENUE CODE § 1274. Determination of issue price in the case of certain debt instruments issued for property., 26 USCS § 1274
Summary
(a) In general. In the case of any debt instrument to which this section applies, for purposes of this subpart [26 USCS §§ 1271 et seq.], the issue price shall be—
(b) Imputed principal amount. For purposes of this section—
(1) In general. Except as provided in paragraph (3), the imputed principal amount of any debt instrument shall be equal to the sum of the present values of all payments due under such debt instrument.