Specify a date and state your intentions clearly. Note that some companies may ask you to terminate employment on the day of your resignation.In this article, we discuss how to create a 30day resignation letter, why it's important and provide a template and examples to help you write your own. "A resignation letter should be short and to the point. Simply explain why you're leaving and the date of your departure. Our Resignation Letter Sample Templates are quick and easy-to-use. They each include formatting and content that sets you up for success.