There are three standard built-in roles in QuickBooks Online (QBO) you can assign to your in-house accountant for payroll access. Company Admin, Primary Admin, and Standard All Access. To assign any of these roles, go to the Gear icon > Manage Users > Add User or Edit. Then, select the appropriate role from the dropdown.
Please note that QBO also includes a built-in In-house accountant role, but users assigned to this role cannot access payroll. This role is limited to reports, bookkeeping, and accounting tools. If you’re using QBO Advanced, you can also create custom roles for more specific access, including certain payroll reporting permissions.
I'll keep this thread open in case you have any updates or need anything else.