Here are some tips for writing a professional resignation acceptance letter: Keep the letter short. Keep your letter brief and to the point.Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. I know it is customary to provide two weeks' notice, and I sincerely apologize for any problems that my short notice might cause. Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. However, don't do this. Accepting a resignation early without paying the employee for the notice period can have consequences, if the employee gave more than two weeks' notice. You should never sign a resignation letter under duress. Most employers ask employees to provide at least two weeks' notice of an intent to quit. How do you write a short resignation letter?