How to write a resignation letter that's effective immediately? Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template.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. Use one of our resignation letter templates. This resignation letter sample provides your employer with a letter for your file and also suggests that you've done everything you can to remain professional. Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. I am writing to inform you of my resignation, effective today, January 1, 2011. In this article, we explore what a sameday resignation letter is, why it's important to write one, how to write one and provide a template and an example. Additionally, Chapter 21 employees must resign 45 days prior to the start of a new school year to avoid any penalties.