Looking to resign with a One Month Notice Resignation Letter? Use our resignation letter template for notice-period roles.Use the 1-month resignation letter template when your company policy recommends advance notice. Free business communication tool. 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. This article will address how to write a retirement letter of resignation and provide an example that you can use as a template for your own retirement letter. A resignation letter form is a tool for employees who want to leave their current position for a new one. A resignation letter is a form that gives notice to an entity or organization of an employee's intent to quit their job.