Every resigning employee shall be urged to indicate in the Resignation form the reason for leaving. I will go over a step-by-step resignation template letter you can use, how to structure it and provide examples of resignation letters.How to write a resignation letter that's effective immediately? A Resignation Letter is typically a formal document given to employers two weeks before an employee resigns from a role. Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. Was this document helpful? Share it with your network! It helps you resign professionally, promote a smooth transition, and put your health first. But the purpose of a resignation letter (at least in the US) is just to establish that you're leaving voluntarily, for legal reasons.