brokerage; exchange commission
A fee charged by a broker or exchange for handling a transaction, especially in financial or commodity markets.
There is a brokerage fee for buying and selling stocks.
I was charged an exchange commission at the money changer.
Compound of 切り (kiri, 'cut' or 'limit') and 賃 (chin, 'fee' or 'wage'). The exact historical derivation is uncertain, but it likely refers to a fee taken as a cut from a transaction.