In applying a cost-based transactional net margin method, fully loaded costs are often used, including all the direct and indirect costs attributable to the activity or transaction, together with an appropriate allocation in respect of the overheads of the business. The question can arise whether and to what extent it is acceptable at arm’s length to treat a significant portion of the taxpayer’s costs as pass-through costs to which no profit element is attributed (i.e. as costs which are potentially excludable from the denominator of the net profit indicator). This depends on the extent to which an independent party in comparable circumstances would agree not to earn a mark-up on part of the costs it incurs. The response should not be based on the classification of costs as “internal” or “external” costs, but rather on a comparability (including functional) analysis. See paragraph 7.34 ...

The denominator should be focussed on the relevant indicator(s) of the value of the functions performed by the tested party in the transaction under review, taking account of its assets used and risks assumed. Typically, and subject to a review of the facts and circumstances of the case, sales or distribution operating expenses may be an appropriate base for distribution activities, full costs or operating expenses may be an appropriate base for a service or manufacturing activity, and operating assets may be an appropriate base for capital-intensive activities such as certain manufacturing activities or utilities. Other bases can also be appropriate depending on the circumstances of the case ...

In applying a cost-based transactional net margin method, fully loaded costs are often used, including all the direct and indirect costs attributable to the activity or transaction, together with an appropriate allocation in respect of the overheads of the business. The question can arise whether and to what extent it is acceptable at arm’s length to treat a significant portion of the taxpayer’s costs as pass-through costs to which no profit element is attributed (i.e. as costs which are potentially excludable from the denominator of the net profit indicator). This depends on the extent to which an independent party in comparable circumstances would agree not to earn a mark-up on part of the costs it incurs. The response should not be based on the classification of costs as “internal” or “external” costs, but rather on a comparability (including functional) analysis. See paragraph 7.34 ...

The denominator should be focussed on the relevant indicator(s) of the value of the functions performed by the tested party in the transaction under review, taking account of its assets used and risks assumed. Typically, and subject to a review of the facts and circumstances of the case, sales or distribution operating expenses may be an appropriate base for distribution activities, full costs or operating expenses may be an appropriate base for a service or manufacturing activity, and operating assets may be an appropriate base for capital-intensive activities such as certain manufacturing activities or utilities. Other bases can also be appropriate depending on the circumstances of the case ...