You can insert an Invoice title. Use the default title or enter your own title into the cell. Alternatively, use the popup menu and select the blank option to skip the heading.
Use the checkbox to select to print or skip the invoice number and GST/HST number. Use the input cells to type in the invoice number and the GST/HST number.
Uncheck the checkbox in the GST/HST column if the item is not subject to tax. This will adjust the GST/HST calculation at the bottom of the invoice accordingly.
The wording is based on Tax and Billing Options above. Setting between annual/quarterly/monthly will automatically set wording between 'return' and 'returns'.
Choose to show the retainer fee before tax. This amount will be included in the tax calculation if the checkbox in the tax selection column is checked off.