Amounts Exactly Twice as much as the other
When an amount is paid to a vendor and it’s exactly double a previous amount paid there is a chance the employee is expensing the double amount, voiding the check, then issuing the correct amount to the vendor and writing a check to themselves for the other half. Example would be an invoice to OzCorp for 1,500 and one month the check is for 3,000. The expense is recorded at 3,000, voided and reissued at 1,500 for OzCorp and 1,500 to a fictitious vendor name where the employee ends up with money. This works well because timing of payment and recording of invoices can always be off and not much attention is paid when its double a payment. However, when this happens when there is no fraud, it means AP is paying off of statements or not getting invoices recorded on time.