This paper addresses how overhead cost allocation system design in multinational enterprises (MNEs) is affected by transfer pricing tax regulation. Using a case study research strategy we find that the implementation of a transfer pricing tax compliance strategy gives rise to a number of changes to the overhead cost allocation system design. Findings suggests that a contingent relationship exists between overhead cost allocation and transfer pricing tax compliance. We argue that when seeking to understand and explain MNEs’ overhead cost allocation system design for intra-company services, the MNEs’ response to its tax regulatory environment is a significant explanatory variable.