Your CPA would not even need your QuickBooks company to do payroll unless you are handing her your computer once a week for payroll.

But payroll explains the need for business info as business industry code is required on some forms, not to mention FEIN and legal address.

Some questions come quickly to mind
1. How many employees
2. How much an hour for CPA compared to Payroll Clerk at $15/hr

Once you take charge of your own payroll (running a weekly payroll including hour entry to check printing) and carve out just 15 minutes or as an added task to secretary pool think of the improved bottom line. Yes there is time involved with forms and that may be why you involve the $100/hr (low side) firm. But, again, no outside payroll processor needs your qb file or even needs you to upgrade