How to write a resignation letter that's effective immediately? A company can't force you to reveal why you are leaving, that would be illegal.This is the answer, if you give two weeks and they fire you they are on the hook for your unemployment which costs more than two week salary. Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. Please accept this letter as formal notice of my resignation from Park Ranger at Clearwater State Park, effective November 18, 2024. Don't even go that far. No reasons are necessary. The way you resign from an HOA board can make all the difference. Click here to learn the do's and don'ts for how to resign gracefully. Add contact details, company name, and date.