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.State your position on the day of resignation: Always mention the position you held in the office on your last working day. Can't give two weeks' notice? Here's how to write a short-notice resignation letter with examples and a template included. If you're moving out soon, it's important to send a notice to vacate letter. Find out when to send it and see a notice to vacate template. Please accept this letter as notice of my resignation with effect from today. In accordance with my notice period, my final day will be …………………… Please accept this letter as formal notification that I am resigning from my position with ABCD Company on Friday, October 22, 2021.