26 CFR § 1.909-3 - Rules regarding related income and split taxes.
(a) Interim rules for identifying related income and split taxes. The principles of paragraphs (d) through (f) of § 1.909-6 apply to related income and split taxes in taxable years beginning on or after January 1, 2011, except that the alternative method for identifying distributions of related income described in § 1.909-6(d)(4) applies only to identify the amount of pre-2011 split taxes of a section 902 corporation that are suspended as of the first day of the section 902 corporation's first taxable year beginning on or after January 1, 2011.
(b) Split taxes on deductible disregarded payments. Split taxes include taxes paid or accrued in taxable years beginning on or after January 1, 2011, with respect to the amount of a disregarded payment that is deductible by the payor of the disregarded payment under the laws of a foreign jurisdiction in which the payor of the disregarded payment is subject to tax on related income from a splitter arrangement. The amount of the deductible disregarded payment to which this paragraph (b) applies is limited to the amount of related income from such splitter arrangement.
(c) Effective/applicability date. This section applies to taxable years ending after February 9, 2015. See 26 CFR 1.909-3T (revised as of April 1, 2014) for rules applicable to taxable years beginning on or after January 1, 2011, and ending on or before February 9, 2015.