How to Use Two Weeks Notice Letter? Write a simple resignation up, "This is my official notice of resignation.A two weeks notice letter must be professional and concise. Clearly state the intention to resign, citing the last working day. Start with a two weeks notice letter. This will serve as a formal, written documentation of your intent to leave and your transition timeline. A two (2) weeks notice resignation letter is the most common letter used when notifying an employer of an official resignation. No need to get all mushy or tell them why you are leaving. I have given a 2 week notice to my employer in NC. I would like to go ahead and leave rather than continue as things are. Be polite and positive.