Auction Flex allows you to easily ass miscellaneous charges to buyer invoices.
1. Click the Maintain Invoice Button 
from the Navigator or the Navigator Toolbar.
2. Use the navigation buttons 
to locate desired invoice.
3. Click the Invoice Charges tab 
.
5. Click the Add Charge button 
from the Charge Controls section of the form.
6. Enter the amount of the charge.
7. Enter a description of the charge.
8. If the charge is taxable, click the tax button 
to apply appropriate taxes. (Note: Tax 2 is generally used for countries with dual tax rates.)