In the body of the letter, state your intended retirement date (your last day) and your thoughts on a transition plan. There are computers onsite at the district office and paper forms for employees who would like to resign or retire from the district.Your retirement resignation letter should begin with a header that states the contact information of the sender and addressee as well as the date. Making a career change? Then you'll need to write a great resignation letter as part of the process. A UTSA employee who is terminating or retiring should submit a letter of resignation to their supervisor. Please accept this letter as a notice of my resignation. Your retirement resignation letter should begin with a header that states the contact information of the sender and addressee as well as the date. In the opening paragraph, make it clear that you are retiring. Begin your letter with a simple statement that expresses your intent to resign from your role.