When resigning for personal reasons, use the following template and examples as a starting point to write your resignation letter. I am writing to inform you of my decision to retire from my position as (Your Job Title) at (Company Name).My last day of work will be (Date). Dear Ms. Emily Clarke,. This will give it a personal touch and show that you're serious about your decision to resign. You can deliver your letter in person or email. You might simply say, "I was recently offered a new position" or, even more simply, "I am writing to confirm my resignation. With deep regret, I am writing to inform you that I am resigning from my position as sales manager for personal reasons. This means that you can quit at any time unless your employment contract says otherwise.