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. In this article, we discuss how to write a retirement letter and we provide an example letter to help you draft your own.How do you write a retirement resignation 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. If you're planning to quit your job here is the compilation of the best resignation letter samples to help you easily draft your resignation letter. In the opening paragraph, make it clear that you are retiring. Documents, Forms, Policies and Resources. RTF Recruiting and Hiring. Discover what to include in a resignation letter, writing tips, and a resignation letter template to download to create your letter. : Complete a Resignation Letter and indicate that you will be resigning.