You want to give at least a two weeks' notice. Learn how to craft a professional resignation letter without notice with our guide.The recommended timeline for providing a resignation letter is at least two weeks prior to your planned last day. 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. Just keep it short and sweet. Don't go into story telling mode. Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. If you have an offer from another firm and can start immediately, is it appropriate to hand in a resignation letter without providing two weeks' notice?