In the first sentence, clearly state your intention to resign and that your resignation is effective immediately. Create an Immediate Resignation Letter without a notice period using our free printable templates.Resign with a professionally designed document. Looking to resign with a Resignation Letter Without Notice? Use our resignation letter template for notice-period roles. Hand in your notice with a positive flourish with some help from Canva. A resignation letter is a form that gives notice to an entity or organization of an employee's intent to quit their job. In the letter, include the date you plan to leave the company. Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation.