Related to derivative market transactions only the fees due to KELER CCP are invoiced. Related to commodities transactions the counterparties to the trade issue the purchase price invoices to each other.

Fee invoices are issued on the first clearing day after the subject month; the due amounts are collected from the Clearing Member accounts kept by KELER. Credit institution Clearing Members are required to pay the due amount by transfer if the Clearing Member concerned has no cash account kept by KELER.