>> ..In most countries, payments within the same bank have been instant (and free).. << Which is quite simple: First, its internaly only an exchange of liabili

>> ..In most countries, payments within the same bank have been instant (and free).. << Which is quite simple: First, its internaly only an exchange of liabilites in your balanace sheet. Second, it does not involve any outgoing gateways/interfaces. Third, if you are using a SaaS-corebanking-solution, those types of transactions are usually excluded in your contract. From that perspective, it is absolutely useful.