How to write a resignation letter that's effective immediately? Start with the facts and be direct.Explore why a good resignation letter is important and how to write it, and check out our free resignation letter examples. Give a clear reason for leaving, but there is no need to overexplain. In this article, we'll provide a detailed resignation letter example to help you leave your current position on good terms. In this article, we discuss how to include a reason in your resignation letter and provide some samples to guide your writing. My resignation is effective immediately. (For example, "I regret to inform you that I will be resigning from my position, effective immediately. Next, express gratitude and sign off professionally. In Chicago, the tenant can even pay the rent after the 5 days is up and stay in the unit, as long as the landlord accepts the rent.