(Last Name), I am writing to inform you that I will be resigning from my position as (Title) at (Company Name). Master the art of writing a resignation letter with our comprehensive guide, offering step-by-step instructions, tips, and templates.Give a clear reason for leaving, but there is no need to overexplain. Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template. Just keep it short and sweet. Don't go into story telling mode. Note your last working day. 5. Due to unforeseen circumstances, I must resign from my position effective immediately.