When resigning without notice, your letter should state clearly that the resignation will be effective immediately. 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.If you live in an at-will state, there is no requirement to give any notice for leaving or for your termination. You should be prepared to leave at any time. Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. This letter informs your employee that you must depart right away without the standard two weeks' notice. I regret to inform you that I will be leaving XXX on June 13th, 2022. Be straightforward when stating your last day in the office. Acknowledge the short notice period. 4. State your position on the day of resignation: Always mention the position you held in the office on your last working day.