The invoice payment process in Quickbooks parallels what happens in the physical world. In Quickbooks you need to replicate what happens in the physical world. In the physical world you receive a physical check and it sits on your desk. In the digital world of Quickbooks you replicate this process when you mark “Payment Accepted” and deposit it to “Undeposited Funds.” In the physical world you scan or deposit the physical check to the bank. In the digital world of Quickbooks you replicate this process by submitting a digital bank deposit.