How to write a resignation letter that's effective immediately? Learn how to write a short notice resignation letter with samples.Find a solution to the challenge of resigning on short notice. In the body of the letter, immediately state your intention to resign and provide your reasoning, including only positive feelings towards your work experience. Professionally notify your employer and make resigning easier with our resignation letter template. Easily edit, fill and sign for free with Lumin. Below you'll find tips for writing a standard resignation letter, as well as sample letters and emails you can use as you write your own. Typically, a twoweek notice period is standard, unless otherwise specified in the employment contract. Lack of Clarity About Resignation Date. Our resignation letter is a formal document employees submit to their employer to announce their decision to leave their current job.