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. Download Pennsylvania Immediate Letter Of Resignation template, modify and send for signing using BoloForms Signature. Dear (HR Manager's Name),. Looking to resign with a Resignation Letter Without Notice? Use our resignation letter template for notice-period roles. You can leave the company without notice period after fighting with HR and your manager,but thats not a good thing. Looking to resign with a Resignation Letter Without Notice? Use our resignation letter template for notice-period roles.