Thanks for following this thread, @landlsherman. The system will calculate taxes based on the employee's W-4 info entered in QuickBooks. 

You can either leave it blank or put zero on the boxes if the employee doesn't have a claim for dependents. Otherwise, you'll need to enter the correct number in all of the boxes in section 3 based on the submitted information. 

You may also find this IRS article helpful about the updates on the 2020 W-4 form. 

For future reference, check out the IRS guidelines in case you don't receive a completed W-4 from an employee, withhold their tax as single with no withholding allowances.

Feel free to visit us again if you have other concerns. We're always delighted to help you more.