I need to make a point to answer your query concerning making sub-accounts under the main account of your payroll funding by employees with QuickBooks, Steve.
Yes, you can add sub-accounts under the main account. This helps you keep track of specific accounts under it. Also, I'll share some steps to help you change the default bank account on your payroll preferences:
QuickBooks Desktop Payroll
1. Click Employees, then Send Payroll Data.
2. On the Send/Receive Data window, select Preferences.
3. In the Account Preferences, Choose the new ledger from the dropdown.
4. Pick OK to save your changes. Select Close on the Send/Receive Data window.
You can learn how to add, edit, or delete accounts from your chart of accounts in QuickBooks Desktop. You can check out this article: Add, edit, or delete accounts in QuickBooks Desktop.
Likewise have a few added attachments to learn how to run, print, and customize payroll reports in QuickBooks Desktop Payroll: Run payroll reports
If you have further inquiries about adding sub-accounts to your main account for payroll and chart of accounts, just add comments below. I'll be here.