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. 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. I would like to inform you of my intention to resign from my position as XXX at XXX effective DATE. While employees often give two weeks notice as a courtesy, there is no law requiring you to give any notice. Due to unforeseen personal reasons, I am unable to provide any notice.