Leaving a job isn't easy. A one (1) week notice letter is written notification provided to an employer that an employee will no longer be working with the company within seven (7) days.I am writing to inform you that I have made the difficult decision to resign from my position at Phoenix Realtors. A short resignation letter is the way to go. Include your name, position, the date of resignation and the intended last day of work in the first paragraph. This sample resignation letter is available for use on UpCounsel. Many of the forms need to be downloaded before you can make edits. A Resignation Letter is typically a formal document given to employers two weeks before an employee resigns from a role. Share this document. A formal resignation letter when you quit your job.