Indirect Costs
To what extent should costs relating to operations, brand recognition, and R&D be included in transfer pricing calculations?
One of the most difficult and controversial calculations in a transfer pricing analysis can be the attribution of "indirect costs" to a transaction. To the extent that a U.S. parent company has conducted research and development on a product or has invested in advertising to build the product's acceptance and recognition, those costs may be applicable to a transfer pricing analysis. These considerations are particularly relevant to the transfer pricing of intangible property, which is often developed in cooperation between related parties across national borders.
The official definition of indirect costs as it apply in the United States can be found in Section 482-2 of the transfer pricing regulations:
      (iii) Indirect costs or deductions are those which are not 
					specifically identified with a particular activity or service but which 
					relate to the direct costs referred to in paragraph (b)(4)(ii) of this 
					section. Indirect costs or deductions generally include costs or 
					deductions with respect to utilities, occupancy, supervisory and 
					clerical compensation, and other overhead burden of the department 
					incurring the direct costs or deductions referred to in paragraph 
					(b)(4)(ii) of this section. Indirect costs or deductions also generally 
					include an appropriate share of the costs or deductions relating to 
					supporting departments and other applicable general and administrative 
					expenses to the extent reasonably allocable to a particular service or 
					activity. Thus, for example, if a domestic corporation's advertising 
					department performs services for the direct benefit of a foreign 
					subsidiary, in addition to direct costs of such department, such as 
					salaries of employees and fees paid to advertising agencies or 
					consultants, which are attributable to such foreign advertising, 
					indirect costs must be taken into account on some reasonable basis in 
					determining the amount of costs or deductions with respect to which the 
					arm's length charge to the foreign subsidiary is to be determined. These 
					generally include depreciation, rent, property taxes, other costs of 
					occupancy, and other overhead costs of the advertising department 
					itself, and allocations of costs from other departments which service 
					the advertising department, such as the personnel, accounting, payroll, 
					and maintenance departments, and other applicable general and 
					administrative expenses including compensation of top management.
Here is a pdf of the complete regulations: 26 CFR 1.482.
Here are some articles that discuss indirect costs: