Be brief, direct and to the point. If you are open to returning to your position in the future, include that as well. 5.Learn how to resign from a board effectively. I am writing this letter to inform you of my decision to resign as a Board member of Center for Kids Ltd. , effective immediately. Include the position title and the last day you intend to work. Dear Members of the Board,. I am writing to formally resign from my position on the committee, effective May 15, 2054.