How to write a resignation letter that's effective immediately? 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.This letter informs your employee that you must depart right away without the standard two weeks' notice. In this article, we explain what a resignation letter is, why they're important, provide steps for writing it, and give you a template and examples. Resignation Letter No Notice. Customize any of these resignation letters in minutes using our free AI-powered resignation letter builder.. There is no legal obligation to provide notice of quitting a job or providing any kind of resignation letter. Create an Immediate Resignation Letter without a notice period using our free printable templates. Resign with a professionally designed document. Discuss resignation with immediate supervisor. 2.