Abstract: A system including one or more processors and one or more non-transitory computer-readable media storing computing instructions configured to run on the one or more processors and perform various acts. The acts can include receiving, in real-time and through a computer network, a payment authorization from a first financial institution. The payment authorization can comprise a payment amount, a recipient account indicator, and a fund withholding instruction for the payment amount and associated with a release condition for the payment amount. The acts also can include after receiving the payment authorization, instructing, through the computer network, a fund withholding financial institution to post the payment amount to a fund withholding account maintained by the fund withholding financial institution. The acts further can include receiving, through the computer network and from the fist financial institution, a release decision that is based on the release condition.