You want to give at least a two weeks' notice. 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.Short, polite, to the point. "This note is to inform you that I have chosen to end my employment with XXXXX, effective immediately (today's date)." If you're wondering how to write a resignation email without a notice period, then our sample can help. Legally, you are only allowed to give resignation letter with due notice period as per your employment letter. The purpose of the letter is to keep in your file to prove 1) you resigned and weren't fired. 2) You gave the proper notice. Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template. Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation.