I'm glad to see you dropping by here in the Community space. I can provide information about the additional employee/contractor fees in QuickBooks Online Payroll.
The fees will depend on the type of payroll subscription you subscribe to in QuickBooks. If you're unsure of what you got, I recommend you go to your settings and check the subscription details.
Here's how:
Click the Gear icon in the upper-right corner.
Select Accountand settings below Your Company.
Go to Billing & subscription.
Check your payroll subscription.
Each employee is an additional $5/month for Core, $8/month for Premium, and $10/month for Elite. Contractor payments via direct deposit are $5/month for Core, $8/month for Premium, and $10/month for Elite.
For more details, check out the QuickBooks Online Payroll terms in this link (scroll down to Important offers, pricing details, & disclaimers, then view the information under QuickBooks Online Payroll terms): https://quickbooks.intuit.com/payroll/pricing/bundle/.