In QuickBooks 2000 through 2005, choose Customers > Create Invoices. (In QuickBooks 99 choose Activities > Create Invoices.)
Select a Customer:Job.
Enter the Quantity and select the Item (either a product or service).
Repeat step 3 for each item you need to include on the invoice.
Click in the Item field.
Enter a name, such as 'Subtotal.'
Press Tab.
QuickBooks displays, "Item Not Found."
Choose 'Yes' to add the item. In QuickBooks 99 through 2004 choose 'Set Up.'
Select 'Subtotal' in New Item's Type dropdown.
Choose OK to create the Subtotal item.
Press Tab.
Notice the Subtotal calculates the dollar amount in the Amount column. If you have just one item to discount, you can delete the 'Subtotal' in the invoice row and continue with step 14.
Click in the product's Item Code or service's Item field on the next available row.
Enter the name of the discount (for instance, '10% discount').
Press Tab.
QuickBooks displays, "Item Not Found."
Choose 'Yes' to add the item. In QuickBooks 99 through 2004 choose 'Set Up.'
Select 'Discount' in the Type dropdown.
Click in the 'Amount or %' field.
Enter '10%.' IMPORTANT: enter the percentage symbol or QuickBooks will calculate a $10.00 discount.
Press Tab to move to the Account field.
Enter the name 'Discounts given.'
Press Tab.
QuickBooks displays "Account Not Found."
Choose 'Set Up.'
Select Type 'Income' for proper placement on the Profit & Loss (income statement).
Choose OK to create the account.
Choose OK to create the Discount item.
Press Tab.
Notice that '-10%' displays on the invoice with the negative dollar amount of the discount.
Click in the Item Code or Item column below '10% discount.'
Enter 'subtotal' to QuickFill the Subtotal item you previously set up.
Press Tab to move out of the field.
Notice the amount column displays the amount due less the discount.
Choose Save & Close. In QuickBooks 99 choose OK.