You can get into the invoice preferences to turn off the discount column. Following are the steps to do os;
For example, if you wish to see the status of the invoice emails, you could click the "Show" drop-down filter and can select invoice notification from the list.
If you would like to remove the discount column only for certain customers, then you can customize the invoice template and can delete the discount columns. This allows you to select the template for the customers while creating invoices. Steps as follows:
Refer the following image : (Note : Mozilla Firefox is the optimal browser for template customizations)
Zoho Invoice FAQ