You can employ a bonus letter template to formally recognize and reward an employee's outstanding performance or the achievement of specific, measurable goals. You can ask your supervisor if they have a specific template you can use or find a bonus letter template online.Check out our employee recognition letter template to help you express your appreciation for employees at your company. Fill out the form below to receive more information on our Rate Structures: First Name(Required). Last Name(Required). Company. Email(Required). The bonus letter should include details such as the bonus amount, the reason for the bonus, and any performance criteria used to determine it. Bonus. Report bonuses separately from regular earnings. Select OTHER and enter BONUS on the form. An official City of West Sacramento application form must be filled out, in its entirety. A copy of such a verification letter shall be placed in the personnel file of the employee.