This article will address how to write a retirement letter of resignation and provide an example that you can use as a template for your own retirement letter. Your retirement resignation letter should begin with a header that states the contact information of the sender and addressee as well as the date.This stepbystep guide shows you how to write a retirement letter to your employer. It also includes FREE templates and examples to help you take action! Learn how to write your retirement resignation letter with templates and samples to give your employer before leaving your job. Use this resignation letter sample as a model to advise your employer that you are resigning because you are leaving the workforce.