How to write a resignation letter that's effective immediately? Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips.Here are steps you can take to still quit properly when you're unable to give notice, including sample resignation letters to send your boss. I am writing to give my resignation from (company name), effective (date), two weeks from today. This resignation was a difficult decision to make. Use this resignation letter example to inform your employer that you need to resign immediately and will not be able to give two weeks' notice. Please accept this letter as notification that I am resigning from my position with ABCD Company on September 15. Ideally, you should send your resignation letter at least two weeks before your planned resignation date. This letter is to inform you that I am resigning from my position as (job title) with (company name), effective (date). Opening paragraph: In the opening paragraph, you should state your intention to resign from your position with immediate effect.