Welcome to the Community, @OMPUMC.
I can see a duplicate post for this exact query you posted. My colleague, ArielI, has already answered similar question you've posted. You can view his answer through this thread: QBO Payroll Setup. I see how to add deductions, but I cannot see where to add a non-taxable addition...
Don't hesitate to keep in touch if you need anything else about adding non-taxable addition in QuickBooks Online. As always, the Community is always here to attend to your concerns.
