Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. I regret to inform you that I will be leaving XXX on June 13th, 2022.Given the short notice, provide a concise but sincere reason for your sudden departure. Say "personal reasons" as a reason for quitting a job. I do not wish to explain in detail to my employer my reasons for leaving the job. I regret to inform you that I will be leaving XXX on June 13th, 2022. This is a formal document that informs your employer or supervisor about your decision to quit your post. It is critical to include a resignation declaration earlier than usual in the short notice resignation letter. A shortnotice resignation letter informs an employer of your intention to resign with less than the standard two weeks' notice. Be straightforward when stating your last day in the office.