Use a salary verification letter to confirm the income of an employee. Download Pdf Select your state below to find a Salary Verification Letter Template."Explore our form designed to confirm income and employment history of previous or current employees. Wage Tax refund requests must be submitted through the Philadelphia Tax Center. You don't need a username and password to submit a refund request. The Wage Tax must be filed quarterly and paid on a schedule that corresponds with how much money is withheld from employees' paychecks. 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. We must have an accurate record of your employee's work schedule and employment income. Please complete the information on the back of this page.