If you are VAT/ tax registered, you can choose whether the total
column on invoices and quotes includes the tax charged, i.e.
whether a net or gross figure is shown.
To change the setting, display the Template Setup tab under the
main Setup tab.
Press the More Options
button as shown below.
the More Options button is disabled, it means that the selected
item preview (invoice, quote, credit note etc.) is for a templates
you have already edited. To change which columns are shown on a
custom/ edited template, open the template editor, click on the columns in the
template and choose the appropriate option in the properties panel
on the right..
The Template Options dialog is then displayed.
Check/ uncheck the Show Gross
Amount in Total Column box to show/ hide the column.