When resigning for personal reasons, use the following template and examples as a starting point to write your resignation letter. I am writing to inform you of my decision to retire from my position as (Your Job Title) at (Company Name).My last day of work will be (Date). Download Pennsylvania Immediate Letter Of Resignation template, modify and send for signing using BoloForms Signature. A resignation letter is a way to formally end your employment and provide details such as an end date and contact information. This decision has not come easily.