TPguidelines

However, it can be difficult to find reliable comparables data that can be used in this manner. Nevertheless, external market data can be relevant in the profit split analysis to assess the value of contributions that each associated enterprise makes to the transactions. In effect, the assumption is that independent parties would have split relevant profits in proportion to the value of their respective contributions to the generation of profit in the transaction. Thus, where there is no more direct evidence of how independent parties in comparable circumstances would have split the profit in comparable transactions, the allocation of profits may be based on the relative contributions of the parties, as measured by their functions, assets used and risks assumed.