How to Use Two Weeks Notice Letter? A two (2) weeks notice resignation letter is the most common letter used when notifying an employer of an official resignation.Start with a two weeks notice letter. This will serve as a formal, written documentation of your intent to leave and your transition timeline. To help you out, here's a step-by-step resignation letter template to use. Simply state something like "Effective this dste, consider this my two week's notice. My last day will be September 1. Explore readymade resignation letter templates tailored for different situations, learn about its essential components, and do and don'ts. In this article, we explain how to write a twoweek notice letter and we provide templates, tips and examples to help you get started.