How to write a resignation letter that's effective immediately? Start with the facts and be direct.Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template. In the first sentence, clearly state your intention to resign and that your resignation is effective immediately. The first section of your resignation letter should be direct and to the point. Download the immediate resignation letter template (compatible with Google Docs and Word Online), or see below for more examples. How do I qualify or register a foreign (out–of–state or out–of–country) business entity in California? Jim Arkens Resignation Letter. Tobler said it's immediately clear in the hiring process if someone is a LEAP candidate.