How to write a resignation letter that's effective immediately? In the first sentence, clearly state your intention to resign and that your resignation is effective immediately.Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. Download New York Immediate Letter Of Resignation template, modify and send for signing using BoloForms Signature. Here are steps you can take to still quit properly when you're unable to give notice, including sample resignation letters to send your boss. A resignation template or example to refer to will often help you clarify your statement and keep it concise and ontopic. Start with a proper greeting: Address your resignation letter to your immediate supervisor or manager. This sets the tone and leaves no room for ambiguity. Sample Resignation Letter.