In this article, we share tips for writing a short, simple resignation letter and offer examples for you to reference when creating your own. Legally, you are only allowed to give resignation letter with due notice period as per your employment letter.State your intention to resign: Clearly state in the opening paragraph that you are resigning from your position. Be direct and to the point. Why should I write a resignation letter? Resignation letters are professional courtesies that extend your professionalism, even in the last. Write a Formal Resignation Letter: Keep it concise and professional.