Hello there, @aperyinc.
I'm here to help provide some insights about adding taxes on the invoice transaction in QuickBooks Online (QBO) for Canada.
I want to make sure I provide you the right resolution, so I only need a few more information about the issue. Are you trying to add a sales tax code on your invoice transaction? If so, you can follow the steps below on how to set it up:
- From the left menu, select Taxes.
- Select Sales Tax. (Tip: If you use payroll in QuickBooks Online, you may need to select Sales Tax as opposed to Payroll Tax.)
- Click Manage sales tax.
- Select Add tax.
- Under What type of tax do you want to add? select Add next to one of the below options and follow the prompts to complete set up.
However, if your business need to group multiple sales tax items into a group, you can follow the detailed steps in this article: How do I add a group sales tax rate?.
If you're referring to something else, any details you can provide is extremely helpful for us to narrow things down.
Don't hesitate to add a comment below if you have additional questions. I'll be around to help you out. Have a good one.