Due to unforeseen circumstances, I must resign. In this article, we share tips for writing a short, simple resignation letter and offer examples for you to reference when creating your own.Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. In this article, we cover everything you need to know about writing a resignation letter without notice and provide an example to get you started. We've prepared several resignation letter samples and templates for crafting a concise yet professional resignation letter. Shall end on the effective date of the first retirement check. C. In the event the employee is unable to complete the reports in a timely manner as a result. File online- Save paper, save time, start your business online.