Select Workers, then Employees from the drop-down menu. Choose the employee's name from the drop-down menu. Select the pencil icon next to Pay in the Employee information section. Select Add more pay kinds from the drop-down menu. Then choose Bonus. Choose Done. Your client can select the Bonus item in the Earnings portion of the Preview Paycheck window when they run their next payroll. Then, as seen in the screenshot, customers can input the amount in the RATE field. For more information, see the following article: In QuickBooks Desktop Payroll, you may make bonus checks. ​To know more visit here: How to Set up a Bonus Payroll Item in QuickBooks