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.Create an Immediate Resignation Letter without a notice period using our free printable templates. Resign with a professionally designed document. Certification of names, number and order of names to be certified from open, promotional, reemployment, layoff and management employment lists. Resignation Letter No Notice. Customize any of these resignation letters in minutes using our free AI-powered resignation letter builder.. It's time to quit the job, and you're not giving two weeks' notice. Here's how to politely write a resignation letter, effective immediately.