How to write a resignation letter that's effective immediately? I'm sorry to leave without notice.In this post, we will talk about short notice resignation letters, resignation letter templates, and examples to assist you in writing your own. I am resigning my position effective immediately. Due to unforeseen personal reasons, I am unable to provide any notice. Here is a short notice resignation template you may use to assist you with writing a resignation letter. Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. I am writing to let you know that I will be leaving my current position at CrossPay on September 8, 2024. Find out who should be the recipient(s). Thus, a resignation requires both an intent to resign and an affirmative act of relinquishment.