Why is there a minimum transaction size (e.g. $10 million) for KTT transfers?

Key Tested Telex is designed for large, institutional transactions, and the operational overhead to handle and authenticate each KTT message is significant. By setting a minimum tranche size, Prominence Bank ensures that KTT is used where it adds value – such as major investments, project funding, or interbank asset movements – rather than routine small payments. The minimum also reflects compliance requirements and the need to maintain sufficient account balances. (Remember that you must keep the required minimum account balance in your Prominence Bank account – €5,000 for personal accounts or €10,000 for corporate accounts – so that incoming KTT fees can be covered and the account remains in good standing