Thanks for reaching out here in the Community, @britemagic. Let's ensure you can create paychecks with a specific net pay amount in QuickBooks Online (QBO).
With QBO Payroll, you may want to pay your employee an exact net pay amount. It is commonly associated with bonuses and is known as a gross-up paycheck. By that, a gross-up can be produced as a separate bonus check.
To create a paycheck, here's how:
Go to the Payroll menu, and click Employees.
Select the Run Payroll dropdown, and select Bonus Only.
Select As net pay, and click Continue.
Enter the pay date.
Select your employee(s), and enter their net bonus amounts.
If you want to use the supplemental tax rates or add a pay period, clickthe payroll options.
Click Preview payroll, then Submit payroll.
Furthermore, you can refer to these articles to guide you on how to run, customize, and print payroll reports and paychecks: