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.Taking into consideration the following points can help you avoid legal trouble and pick the right time to submit your resignation in Washington state. In the USA there is no legal consequence to providing short or no notice of a resignation at all. 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)." Concluding Your Resignation Letter: FAQs; Can I resign effective immediately? Can I resign without a notice period? The law does not require employers to give a worker notice before terminating their job. You should talk to your employer and explain why you can only give two weeks' notice.