You want to give at least a two weeks' notice. Employees are encouraged to provide their supervisor with a minimum of two weeks' notice of their intention to separate from City employment.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. In this post, I discuss frequently asked questions about an employee or employer ending the employment relationship without notice or cause. Short, polite, to the point. "This note is to inform you that I have chosen to end my employment with XXXXX, effective immediately (today's date)." Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template. If you live in an at-will state, there is no requirement to give any notice for leaving or for your termination. You should be prepared to leave at any time. Sample of resignation letter verbiage: Dear ______.