Item Code:
Enter a unique, short (but memorable) code for this item. This will not be displayed on the invoice.
Item Description:
Enter the full description you want to be displayed on the invoice.
Unit Value (price or rate):
This is the price of one unit of the item.
Tax:
Select the tax rate that applies to the item. If the only option available is None, you may need to configure the Tax Options (Options from the main window, then click the Tax tab).