To write a short notice resignation letter, include your position and effective date, explain your reason and express gratitude. Please accept this letter as notice of my resignation with effect from today.In accordance with my notice period, my final day will be …………………… Learn how to write a short notice resignation letter with samples. Find a solution to the challenge of resigning on short notice. Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. I regretfully have to inform you that, after much thought, I have decided to resign and please accept this letter as a formal notice of my resignation. Looking to resign with a Short Notice Resignation Letter? Use our resignation letter template for notice-period roles.