Click appearing adjacent to the payroll month drop down and then click Sys Admin Backroom from the menu that appears.
Navigate to Payroll Tools > Payroll Inputs Cleanup.
Under the Override, Income Tax Override andSalary Inputs tabs, select the employees, choose the Pay Items (if applicable) and then proceed to delete the payroll data. You can either delete the payroll data for the selected employees or in bulk by clicking on Delete Selected or Delete All. The payroll data of the chosen employees is deleted.