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.Download a free immediate effect resignation letter template, easily customizable for your personal situation. A couple of questions. 1. Why did the company not ask you to serve your entire notice period? Learn how to write a professional resignation acceptance letter with our helpful guide. "The standard length of time for many companies is one month's notice. " Ideally, you should do this with a meeting, and then follow up with a letter or email. We appreciate the notice period you have provided and the time you have dedicated to the company. A couple of questions. 1.