How to Deduct Expenses from Payments to QuickBooks Vendors
A reader wrote with the following question: "One of my vendors wants a wire transfer instead of a check, and says I can deduct the cost of the transfer from the bill. How do I do this in QuickBooks?"
Create a vendor credit for the wire transfer fee, posting it to an appropriate QuickBooks expense (such as bank charges, or an expense you create for wire transfer fees). Then apply that credit when you pay the bill. Because you wired the payment, create a check for the net payment amount, leaving the check number blank or using a code such a Wire.