Learn how to write a resignational letter if you're quitting for personal reasons. Below are some ProTips and a sample resignation letter that you can edit based on the details of your own individual situation.A resignation letter should provide a clear time frame of when you plan to terminate your position. Specifically state the day your resignation is official. In the opening paragraph, clearly state that you are resigning from your position. A professional resignation letter most importantly outlines the details of your employment and departure. This letter is to officially inform you that I resign from my position as xxxxxxx, effective immediately. Simply write that you're leaving for "personal reasons" after stating your intent to resign and your last day of employment with the company. Schedule a meeting with your boss ASAP so you can get it done. Set up enough time to resign and review your transition plan and any other outstanding issues.