26 CFR § 301.6241-4 - Payments nondeductible.
(a) Payments nondeductible. No deduction is allowed under subtitle A of the Internal Revenue Code (Code) for any payment required to be made by a partnership under subchapter C of chapter 63 of the Code (subchapter C of chapter 63). Payment by a partnership of any amount required to be paid under subchapter C of chapter 63, including any imputed underpayment (as defined in § 301.6241-1(a)(3)), or interest, penalties, additions to tax, or additional amounts with respect to an imputed underpayment, is treated as an expenditure described in section 705(a)(2)(B).
(b) Applicability date -
(2) Election under § 301.9100-22 in effect. This section applies to any partnership taxable year beginning after November 2, 2015, and before January 1, 2018, for which a valid election under § 301.9100-22 is in effect.