Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. The following are the things to keep in mind when writing an immediate resignation letter: Write the date first.Explain only necessities. Learn how to craft a professional resignation letter for personal reasons. Learn how to write a resignation letter due to family reasons with our stepbystep guide and sample letters. It's best to tell your boss that you're moving on to the next step in your career "facetoface or over video call," with at least two weeks' notice. These top samples of resignation letters for personal reasons can be used as helpful templates when you are looking to resign due to personal circumstances. Clearly state your intention to leave and when you will be leaving. While it is traditional to have a two week notice, it is possible to give more or less time. Provide at least two weeks' notice when leaving a job (preferably longer; double check requirements with HR).