How to write a resignation letter that's effective immediately? Ready to resign from your job?This blog is here to guide you through the pivotal steps to take for a smooth and professional departure. The header at the top of the resignation letter (the same thing as a letterhead) should include your name, address, phone number and email. Learn how to resign from a board effectively. Here's a resignation letter template you can use to ensure a smooth transition process and avoid losing your connections as you move forward. The best time to resign is at the end of the day, and on a Monday or Tuesday. The end of the day timing is for your benefit. To make a graceful exit, you'll want a resignation letter that clearly states your intention to leave, but also offers a word of thanks. To write a good and simple resignation letter, greet your manager formally, then state your intent to resign and the date you'll officially depart.