A payment item subtracts the amount of a customer payment from the total
amount of an invoice or statement. You need a payment item when you receive a
partial or advance payment toward the amount of an invoice or statement at or before the
time you create the invoice or statement.
If you receive full payment at the time of the sale, use a sales receipt
form (instead of an invoice) with a payment item. If you receive full or
partial payment on an invoice or statement after you created it,
enter the payment in the Receive Payments
To do this task
Create a payment item with a zero amount.
Enter the payment item on the invoice.
Enter the amount of the payment in the Rate column (or Amount column, if there is no Rate column).
QuickBooks automatically changes your entry to a negative number so the invoice will be correctly credited with the partial payment.
The payment amount reduces the balance due on the invoice.
(Optional) Print a copy of the invoice.
Save the invoice.
Receive payments in QuickBooks