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). In the opening paragraph, clearly state that you are resigning from your position. Use one of our resignation letter templates. These top samples of resignation letters for personal reasons can be used as helpful templates when you are looking to resign due to personal circumstances. I wish the company continued success in the future. Sincerely,. This letter is to formally inform you of my resignation from my position beginning (date). With deep regret, I am writing to inform you that I am resigning from my position as sales manager for personal reasons.