Hi thomashopkinsphoto,

Thanks for joining us here.  I can see how beneficial applying tips to your forms would be.  Currently this option isn't available in QuickBooks Online Canada.  However, you can submit a suggestion to our Development Team for product updates and feature improvements.  Customer recommendations are greatly appreciated for helping us improve your overall customer experience with QuickBooks Online.  In the interim, you can create a product/service, named 'Tips' and enter it as a line item on your forms.

Feel free to reach out again, if other questions come to mind.  We'd be happy to help!