Pick the perfect wording and convey the message best suited for your situation. Just state the position you're resigning from and the effective date.Be crystal clear that you're leaving the job. The employee should make sure to include their name, current job position, a brief explanation of why they are resigning, and what date their last day will be. 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.