Welcome to the QuickBooks family! I'm happy to provide information about your payroll items.
QBO Payroll doesn't have a list of payroll items like in the desktop version. They are just in the background, waiting to be set up (define the amount, percentage, etc) and assigned to the employees. The ones being used by the employees can be seen in the Pay types and Deductions and Contributions sections of their profiles.
If you want to add more items, you need to open an employee's profile and set up the item. Then, if you want to assign it to another employee, you'll need to add it to his or her profile.
For example, you want to add an overtime pay type to Employee A:
Go to Payroll and select Employees.
Double-click the name of the employee to edit his profile.
Click the Edit (pencil icon) beside Pay.
Go to How much do you pay [employee_name].
Click Add additional pay types.
Select the overtime item from the list.
Click Save.
If you want to add a deduction or a contribution type of item, just follow steps 1-3. Then, go to the Does Shellstrop have any deductions? section in the profile.
On the other hand, when you add an employee's profile, you'll be asked to add a pay type, a deduction, or a contribution item along the process.
I'm adding the articles below to guide you through adding payroll items. Just expand the QuickBooks Online Payroll product in each of them.