How to write a resignation letter that's effective immediately? Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation.Example 1: This is to notify you that I would like to resign from my position as (your post) effective immediately from tomorrow. Please be advised this memo serves notice of my intention to resign from my position with your company effective immediately. All you need to do is put the date of your intended departure, your name, the fact that you are resigning, the date and your signature. Hi,. Please be advised that I am resigning my position with immediate effect. Regards,. Here is a short notice resignation template you may use to assist you with writing a resignation letter. (For example, "I regret to inform you that I will be resigning from my position, effective immediately. I wish you both great success going forward. In the meantime, please let me know if I can assist you in any way during this transition period. Sincerely,.