Pick the perfect wording and convey the message best suited for your situation. 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. Learn how to write a professional resignation letter with our step-by-step guide and easy to use templates. Download and use this resignation letter template for family illness to communicate your decision to leave your job effectively. Add contact details, company name, and date. 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.