I've got the steps you need, sb-alehzayis.
You can add a discount item by following the steps below. Note: QuickBooks calculates percentages only on the line, make sure to create a subtotal item before adding the discount item.
- Go to Lists > Item list.
- At the bottom, click the Item drop-down and choose New.
- Select Discount from the Type drop-down menu.
- Enter the Item Name/Number, Description, and the Amount or %.
- Select which account will the discount be mapped.
- Choose the Tax Code of the discount.
- Click OK.
Once done, you can apply this discount to your items. I've got this article for more information: Add, edit and delete items.
Please don't hesitate to reach out to us if you need more help with QuickBooks Desktop items. Thanks.
