What do you write in a teacher Retirement Letter? This article will address how to write a retirement letter of resignation and provide an example that you can use as a template for your own retirement letter.Upon retirement, resignation or termination, an employee will be paid for a maximum of thirty (30) annual leave days. Use a retirement resignation letter template to inform your employer that you plan to leave the workforce. What is the procedure for a refund? Upon retirement, resignation or termination, an employee will be paid for a maximum of thirty (30) annual leave days. In the opening paragraph, make it clear that you are retiring. In an abrupt announcement, Executive Director Tim Hanson said he will retire from Four Rivers Sanitation Authority.