Application

(c)Application—(1) In general. The allocation of profit or loss under the profit split method must be made in accordance with one of the following allocation methods—(i) The comparable profit split, described in paragraph (c)(2) of this section; or

(ii)The residual profit split, described in paragraph (c)(3) of this section.

(2)Comparable profit split—(i) In general. A comparable profit split is derived from the combined operating profit of uncontrolled taxpayers whose transactions and activities are similar to those of the controlled taxpayers in the relevant business activity. Under this method, each uncontrolled taxpayer's percentage of the combined operating profit or loss is used to allocate the combined operating profit or loss of the relevant business activity.

(ii)Comparability and reliability considerations—(A) In general. Whether results derived from application of this method are the most reliable measure of the arm's length result is determined using the factors described under the best method rule in § 1.482-1(c).

(B)Comparability—(1) In general. The degree of comparability between the controlled and uncontrolled taxpayers is determined by applying the comparability provisions of § 1.482-1(d). The comparable profit split compares the division of operating profits among the controlled taxpayers to the division of operating profits among uncontrolled taxpayers engaged in similar activities under similar circumstances. Although all of the factors described in § 1.482-1(d)(3) must be considered, comparability under this method is particularly dependent on the considerations described under the comparable profits method in § 1.482-5(c)(2) or § 1.482-9(f)(2)(iii) because this method is based on a comparison of the operating profit of the controlled and uncontrolled taxpayers. In addition, because the contractual terms of the relationship among the participants in the relevant business activity will be a principal determinant of the allocation of functions and risks among them, comparability under this method also depends particularly on the degree of similarity of the contractual terms of the controlled and uncontrolled taxpayers. Finally, the comparable profit split may not be used if the combined operating profit (as a percentage of the combined assets) of the uncontrolled comparables varies significantly from that earned by the controlled taxpayers.

(2)Adjustments for differences between the controlled and uncontrolled taxpayers. If there are differences between the controlled and uncontrolled taxpayers that would materially affect the division of operating profit, adjustments must be made according to the provisions of § 1.482-1(d)(2).

(C)Data and assumptions. The reliability of the results derived from the comparable profit split is affected by the quality of the data and assumptions used to apply this method. In particular, the following factors must be considered—

(1)The reliability of the allocation of costs, income, and assets between the relevant business activity and the participants' other activities will affect the accuracy of the determination of combined operating profit and its allocation among the participants. If it is not possible to allocate costs, income, and assets directly based on factual relationships, a reasonable allocation formula may be used. To the extent direct allocations are not made, the reliability of the results derived from the application of this method is reduced relative to the results of a method that requires fewer allocations of costs, income, and assets. Similarly, the reliability of the results derived from the application of this method is affected by the extent to which it is possible to apply the method to the parties' financial data that is related solely to the controlled transactions. For example, if the relevant business activity is the assembly of components purchased from both controlled and uncontrolled suppliers, it may not be possible to apply the method solely to financial data related to the controlled transactions. In such a case, the reliability of the results derived from the application of this method will be reduced.

(2)The degree of consistency between the controlled and uncontrolled taxpayers in accounting practices that materially affect the items that determine the amount and allocation of operating profit affects the reliability of the result. Thus, for example, if differences in inventory and other cost accounting practices would materially affect operating profit, the ability to make reliable adjustments for such differences would affect the reliability of the results. Further, accounting consistency among the participants in the controlled transaction is required to ensure that the items determining the amount and allocation of operating profit are measured on a consistent basis.