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.The option you have is to buy back the notice period and pay equivalent amount if you don't want to serve the notice period. Resignation without a notice period short tenure. 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)." A wellwritten letter explaining your circumstances is helpful when you're resigning without giving notice. Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template.