Learn how to write a 30day resignation letter stepbystep and review sample letters and a template to help you get started on yours. "A resignation letter should be short and to the point.Simply explain why you're leaving and the date of your departure. I am writing to inform you that I will be resigning from my current position, X at X, effective immediately. Please accept this letter as formal notice. Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. This resignation letter should include details of the resignation like date and reason for leaving. Write a Letter of Resignation. I am currently an employee in good standing at my current job in Maryland. I am formally resigning from my position as Senior Registered Nurse at Maplewood Medical Center.