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. Use this resignation letter sample as a model to advise your employer that you are resigning because you are leaving the workforce.In this article, we discuss how to write a retirement letter and we provide an example letter to help you draft your own. In this post, we provide written 10 different retirement letter samples to use, so you're sure to find one that feels right for your situation. In the opening paragraph, make it clear that you are retiring. Benefits can fill out this form. For assistance, call 602-506-1010.