Your retirement resignation letter should begin with a header that states the contact information of the sender and addressee as well as the date. Want to know how to write a retirement letter of resignation?Get the insights you need and free retirement letter template to help guide the way. To resign from your position, complete and submit a resignation letter to your supervisor at least two weeks, or as soon as possible, before your last day. Download Florida Retirement Letter template, modify and send for signing using BoloForms Signature. Here is a sample retirement letter to notify your employer. It will serve as your official resignation letter in your employment file. Linked below are templates for resignations and retirements. Please be certain that your letter is signed, dated correctly and addressed to your administrator. In the body of the letter, immediately state your intention to resign and provide your reasoning, including only positive feelings towards your work experience.