Professional Resignation Letter is a formal written notice announcing intention to leave a job. In this article, we explain how to construct a formal resignation letter as well as provide an example to help you write your own.The complete guide to writing your resignation letter including expert tips, free copyable samples, and templates. I will go over a step-by-step resignation template letter you can use, how to structure it and provide examples of resignation letters. I am writing to notify you of my resignation from my position as (job title) at (company name). My last day will be (month, day, year). The first line of the address section should include your name and phone number. Your resignation letter should also include the date you want to quit. Use one of our resignation letter templates. WEST PALM BEACH, Fla.