Employ a traditional letter format. Thank you for the opportunity to be employed here (this is optional though).Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. We've collected the best practices for telling your boss you'd like to quit, covering various scenarios (yes, even the one where you really hated it) However, a resignation letter tends to be longer and more formal. State your intention to resign: Clearly state in the opening paragraph that you are resigning from your position. Be direct and to the point. A simple resignation letter format includes a resignation statement, an appropriate notice period, and an expression of gratitude. Are you ready to move on to a new opportunity, but unsure how to navigate the process of submitting your resignation letter?