Letter when employment is immediately ended​​ 15, 2020. It is with great regret that we see you go.The employer is not required to continue employment to fulfill the "courtesy" two (three) week notice of resignation. An expected notice period for executives could be up to three months or more. Crafting your resignation letter with a notice period. Let's say you hand in, submit, email your letter of resignation on a Monday and give two weeks notice. If the resignation was verbal, you may ask the employee to complete a resignation notice to document the conversation. Sample emails and letters to accept an employee's resignation, explain company resignation policies, and confirm the last day of work. Advanced notice (2 months)​​ An advanced notice resignation letter is when you provide your employer with more notice than is typically required. An employer can't refuse or delay a resignation so them confirming it, throwing it in the trash or whatever is irrelevant.