Use a formal business format for the actual letter itself. Notify your manager in person before you submit your formal resignation letter.In this article, we cover everything you need to know about writing a resignation letter without notice and provide an example to get you started. This resignation letter sample provides your employer with a letter for your file and also suggests that you've done everything you can to remain professional. Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. A two (2) weeks notice resignation letter is the most common letter used when notifying an employer of an official resignation. Looking to resign with a Resignation Letter Without Notice? Use our resignation letter template for notice-period roles. If you want to leave your job you will have to give notice of resignation to your employer. You must also complete an employee withholding allowance certificate (W-4 Form) each time you change or revise the number of claimed tax exemptions.