An authorized COMPANY REPRESENTATIVE (not the employee) must complete this form. An employment verification letter is an acknowledgment from an employer confirming an employee's job status, position, salary, and duration.Be sure to include a formal salutation and closing. Go to employment.pa. • Original Letters from the employer: which must include. 1. Dates of employment. 2. How to Draft an Employment Verification Letter? Learn how to write a proof of income letter with our stepbystep guide and use our fillintheblanks template as an example. An attached resume or CV may be needed per the job posting, but does not substitute for a complete and accurate application. The letter will then state when the employee began working there, what their job title was, and how long they were employed there.