Commission is only relevant to an agency contract.

Where a broker acts as riskless principal (or any other kind of principal) there is NO commission: the payment we call a “commission” is really just an additional fee.

For example, a real estate agent arranges a transaction between buyer and seller and is not in the contractual chain itself. Therefore one pays the purchase price to the seller, but the commission to the agent - look upon it as a derivative of the purchase price, even — though honestly that is slightly stretching the metaphor.

if you have legal, regulatory or — gasp — tax reasons for not wanting to have anything to do with a principal contract between your swap counterparty and its hedge counterparty, best call the amount you pay to your swap counterparty as consideration for its agreeing to put o the trade as a fee not a commission.

My own view is that “a rose is a rose, and by any other name smells just as sweet” - but tax lawyers aren't so well read.

Rationale:

  • Agency “Commission”: In a pure agency contract, there is no direct transaction between Agent and Principal, so the only way the agent can be remunerated is by a separate “agency fee”: this is a “commission” calculated on the value of the transaction between Street and the Customer directly to which the agent is not a party.
  • Riskless Principal compensation: In a riskless principal structure there are two contracts: one between Street and Dealer, and between Dealer and Principal. Therefore Dealer may extract a fee by:
    • Mark-up/Mark-down: imposing a mark up/mark down between the two contracts; OR
    • Fee: separately charge a fee, which may be labelled a “commission”.

See also