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.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. Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. Resignation Letter No Notice. Customize any of these resignation letters in minutes using our free AI-powered resignation letter builder.. Learn how to write a short notice resignation letter with samples. Find a solution to the challenge of resigning on short notice. Create an Immediate Resignation Letter without a notice period using our free printable templates. Resign with a professionally designed document.