We've rounded up tips and examples for writing a resignation letter that'll help you maintain work relationships long after leaving a company. Try to focus on a single compelling reason for your decision.It is not necessary to officially provide a reason for leaving or resigning. Find out how to write the perfect resignation letter, including examples and templates of a professional resignation letter. Please accept this letter as a notice of my resignation. If you have a good cause for quitting your job, it means you have a valid and strong reason to leave. Your employment contract might require you to give two weeks' notice or longer. Please accept this letter as a notice of my resignation. Absent a written contract indicating otherwise, an employee does not have to provide a reason, or "cause," for the resignation.