Pick the perfect wording and convey the message best suited for your situation. It's time to quit the job, and you're not giving two weeks' notice.Here's how to politely write a resignation letter, effective immediately. No, you don't ever say anything in a resignation letter other than "I resign, effect on this date". Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. You want to give at least a two weeks' notice. Just state the position you're resigning from and the effective date. Be crystal clear that you're leaving the job. When providing a reason, keep it brief. No need to get into the specifics.