Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. How to write a resignation letter that's effective immediately?Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template. All you need to do is put the date of your intended departure, your name, the fact that you are resigning, the date and your signature. Short, polite, to the point. "This note is to inform you that I have chosen to end my employment with XXXXX, effective immediately (today's date)." When you're unhappy at work, it might be time to go. Here's how to write a resignation letter without burning bridges, including samples and formatting. When resigning without notice, your letter should state clearly that the resignation will be effective immediately.