Download Minnesota Immediate Letter Of Resignation template, modify and send for signing using BoloForms Signature. How to write a resignation letter that's effective immediately?In the body of the letter, immediately state your intention to resign and provide your reasoning, including only positive feelings towards your work experience. Due to unforeseen personal reasons, I am unable to provide any notice. In the opening paragraph, clearly state that you are resigning from your position. Please accept this letter as my formal resignation. Today will be my last day of work. (For example, "I regret to inform you that I will be resigning from my position, effective immediately.