Explain why you're leaving. Briefly explain the reasons you've decided to leave, both related to your current job and to your new position.We've rounded up tips and examples for writing a resignation letter that'll help you maintain work relationships long after leaving a company. Leaving a job isn't easy. In this article, we discuss how to include a reason in your resignation letter and provide some samples to guide your writing. Below are three sample resignation letter templates, written for different scenarios. Here's how to write a resignation letter when you're quitting for a job with a better compensation package, and you want to provide your employer with a reason. It is my regret to inform you that I must hand in my resignation as head of security at Cornado Center. A simple resignation letter format includes a resignation statement, an appropriate notice period, and an expression of gratitude. Please accept this letter as official notification of my resignation from my position as Floor Manager, effective immediately.