Real-time Gross Settlement (RTGS) is a fund transfer system where the transfer of money takes place from one bank to any other bank on a "real time" and on a gross basis. Settlement in "real time" means a payment transaction is not subjected to any waiting period, with transactions being settled as soon as they are processed. "Gross settlement" means the transaction is settled on one-to-one basis without bundling or netting with any other transaction. "Settlement" means that once processed, payments are final and irrevocable.

In Zimbabwe RTGS are typically supposed to be initiated before midday in order to be settled the same day.

RTGS systems are typically used for high-value transactions that require and receive immediate clearing.