In this article, we explain how to write a twoweek notice letter and we provide templates, tips and examples to help you get started. We've rounded up tips and examples for writing a resignation letter that'll help you maintain work relationships long after leaving a company.In this article, we discuss what to include in a professional resignation letter and we share examples of resignation letters you can use for reference. This sample resignation letter is available for use on UpCounsel. How do you write a simple letter of resignation? The employee should make sure to include their name, current job position, a brief explanation of why they are resigning, and what date their last day will be. For those in more traditionally professional fields such as law, finance or politics a formal resignation letter may be more appropriate. Use business letter format. Because this is a professional letter, you should use business letter format for your letter. A simple resignation letter format includes a resignation statement, an appropriate notice period, and an expression of gratitude.