How to write a resignation letter that's effective immediately? Basic Resignation Letter Sample.Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template. Start with the facts and be direct. We've rounded up tips and examples for writing a resignation letter that'll help you maintain work relationships long after leaving a company. What It Takes to Write A Great Resignation Letter. Create the perfect resignation letter in 30 seconds with our free AI resignation letter generator. 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. Give a clear reason for leaving, but there is no need to overexplain. Please accept this letter as my formal resignation.