Square users may choose to incorporate a Tip field on all Iris invoices. The Tip field is optional, and is not automatically included on your invoices.
To enable the Tip field, navigate to your Studio Profile > Invoice Setup.
Choose the Settings tab. Toggle the button for Tips to the on position.
Once you have enabled Tips on your invoices, all sent invoices will have the Tip field. This tip field is not required to be completed by your clients. You may also choose to turn the Tip field off at any time by navigating back to your Invoice Setup tab.
*Make sure you have tips enabled in your Square account as well.