Section 1.250-1 - Introduction(a)Overview. Sections 1.250(a)-1 and 1.250(b)-1 through 1.250(b)-6 provide rules to determine a domestic corporation's section 250 deduction. Section 1.250(a)-1 provides rules to determine the amount of a domestic corporation's deduction for foreign-derived intangible income and global intangible low-taxed income. Section 1.250(b)-1 provides general rules and definitions regarding the computation of foreign-derived intangible income. Section 1.250(b)-2 provides rules for determining a domestic corporation's qualified business asset investment. Section 1.250(b)-3 provides general rules and definitions regarding the determination of gross foreign-derived deduction eligible income. Section 1.250(b)-4 provides rules regarding the determination of gross foreign-derived deduction eligible income from the sale of property. Section 1.250(b)-5 provides rules regarding the determination of gross foreign-derived deduction eligible income from the provision of a service. Section 1.250(b)-6 provides rules regarding the sale of property or provision of a service to a related party.(b)Applicability dates. Except as otherwise provided in this paragraph (b), §§ 1.250(a)-1 and 1.250(b)-1 through 1.250(b)-6 apply to taxable years beginning on or after January 1, 2021. Section 1.250(b)-2(h) applies to taxable years ending on or after March 4, 2019. The last sentence in § 1.250(b)-2(e)(2) applies to taxable years beginning after December 31, 2017.T.D. 9901, 85 FR 43080 , July 15, 2020, as amended by 85 FR 68249 , Oct. 28, 2020; T.D. 9956, 86 FR 52972 , Sept. 24, 2021 85 FR 43080, 9/14/2020; as amended by 85 FR 68249, 10/28/2020; T.D. 9956, 86 FR 52972, 9/24/2021