To add a discount to an invoice:
- Under the Income tab, click Income.
- Select the invoice and click Edit Item.
- At the bottom of the Invoice window, in the blank fields under the Products tab, enter the discount, an optional description, a quantity of 1, and a negative amount to indicate the discount (be sure to add the "-" before the amount).Then click the Add button.
- The amount of the invoice is reduced by the discount. Click Save.
You've successfully applied a discount to an invoice.