This letter lets an employer know that, after much planning, the employee is pleased to be taking early retirement.
Thank you for your support as I resign. Early retirement has been a goal of mine for some time, and thanks in part to my growth at XYZ Company, I’m now able to make that happen.
My last day will be in two weeks.
I will miss the XYZ team, but am looking forward to road trips with my family and a lot of fly fishing!