Understanding How to Process Advance Payments from Customers
At times, a customer might make a payment to you before receiving the goods or services that you provide. You must provide a GUI for the VAT amount for these advance payments.
To process advance payments:
- Use the standard software functionality to process an unapplied receipt. 
- Create an invoice for the tax amount using a tax explanation code of VT so that you can generate a GUI for the tax amount. - When you create the invoice, the system creates a line for the tax as well as the balance of the amount. You print the GUI for the tax amount. 
- Use the Standard Receipt Entry program (P03B102) to match the unapplied receipt to the invoice. 
- When you create an invoice for the sale, you will also match that invoice to the unapplied receipt. - You match the invoice to the remaining unapplied amount, which does not include the VAT. Because you have already issued a GUI for the tax amount, you do not issue another GUI.