I'm here to guide you in making changes to a processed payroll in QuickBooks Online (QBO),Joann.
If you've already sent the payroll to your payroll service, the option to delete the paycheck is unavailable. Instead, you'll need to void it. Voiding the paycheck will change the dollar amount to zero, but it does not stop the direct deposit from processing or returning funds to you.
Here's how to void the paycheck:
Navigate to Payroll, then click the Employees tab.
Choose the Paycheck list.
Select the paycheck you'd like to void, then click Void.