Where a captive insurance is used so that the MNE group can access the reinsurance market to divest itself of risk through insuring risk outside the MNE group, whilst making cost savings over using a third party intermediary, by pooling risks within the MNE group, the captive arrangement harnesses the benefits of collective negotiation on any reinsured risks and more efficient allocation of capital in respect of any risks retained. These benefits arise as a result of the concerted actions of the MNE policyholders and the captive insurance. The insured participants jointly contribute with the expectation that each of them will benefit through reduced premiums. This is similar to the type of group-wide arrangements that might exist for other group functions such as purchasing of goods or services. Where the captive insurance insures the risk and reinsures it in the open market, it should receive an appropriate reward for the basic services it provides. The remaining group synergy benefit should be allocated among the insured participants by means of discounted premiums ...

Notably, internal risk diversification might generate lower capital efficiencies than those achieved through external risk diversification. Therefore, the remuneration of a captive insurance that exclusively covers internal risks might be lower than when risk diversification is achieved by insuring external, non-group risks, or by reinsuring a significant proportion of the MNE group’s risks outside of the group. In addition, when the accurate delineation of the actual transaction indicates that the capital efficiencies achieved through the pooling of internal risks in the captive insurance arise from the result of group synergies created through deliberate concerted group actions, the benefits of such synergies should generally be shared by the MNEs that contributed to the creation of those synergies (see Section D.8 of Chapter I and paragraphs 10.222 and 10.223) ...

Under these circumstances the interest rate charged on the loan by T to S is an arm’s length interest rate because (i) it is the same rate charged to S by an independent lender in a comparable transaction; and (ii) no payment or comparability adjustment is required for the group synergy benefit that gives rise to the ability of S to borrow from independent enterprises at an interest rate lower than it could were it not a member of the group because the synergistic benefit of being able to borrow arises from S’s group membership alone and not from any deliberate concerted action of members of the MNE group ...

Under these circumstances the interest rate charged on the loan by T to S is an arm’s length interest rate because (i) it is the same rate charged to S by an independent lender in a comparable transaction; and (ii) no payment or comparability adjustment is required for the group synergy benefit that gives rise to the ability of S to borrow from independent enterprises at an interest rate lower than it could were it not a member of the group because the synergistic benefit of being able to borrow arises from S’s group membership alone and not from any deliberate concerted action of members of the MNE group ...