Need to write a salary increase letter to an employee? Follow these step-by-step instructions to write your own, or steal one of our pre-made templates.Learn how to write a compelling salary increase letter to reward performing employees with our tips, checklist, and free templates. I am writing to discuss the possibility of a salary increment. Download Ohio Salary Verification Letter template, modify and send for signing using BoloForms Signature. Your employee should complete the Ohio IT 4. This letter confirms the amount of increase and the company's appreciation for a job well done. Learn how to write a proof of income letter with our stepbystep guide and use our fillintheblanks template as an example.