Dear (Manager's Name), I'm writing to you today to submit my notice and resignation letter. Learn how to write a resignation letter with a notice period.Begin your letter with a statement of intent that is brief and focused. State that you are resigning and the effective date. Due to unforeseen personal reasons, I am unable to provide any notice. I am writing to inform you that I will be resigning from my position as (Title) at (Company Name). State your notice period, which should be in line with the terms of your contract. If necessary, review your contract to confirm how much notice is required. Underneath your contact information, insert the date. For those in more traditionally professional fields such as law, finance or politics a formal resignation letter may be more appropriate.