Learn how to write a resignation letter with a notice period. You want to give at least a two weeks' notice.Use one of our resignation letter templates. Due to unforeseen personal reasons, I am unable to provide any notice. A resignation letter has three parts: The notification with your end date, the thank you, and the handoff. In the body of the letter, immediately state your intention to resign and provide your reasoning, including only positive feelings towards your work experience. In the body of the letter, immediately state your intention to resign and provide your reasoning, including only positive feelings towards your work experience. Download employee termination letter samples in PDF format and issue proper notice to terminate employment effectively. A simple resignation letter format includes a resignation statement, an appropriate notice period, and an expression of gratitude. Customer: I filed a letter of resignation with a 30 day notice in writing, as I believe was required for my position.