A twoweeks'notice letter should include your planned last working day, a brief thank you, and an offer to assist with the transition. No need to get all mushy or tell them why you are leaving.Two Weeks Notice Letter of Resignation. It's polite to give at least two weeks' notice so your employer has time to find a replacement. I am writing to inform you of my decision to resign from "company" as "title" effective 2 weeks from today. My last day will be mm-dd-yyyy. Professional written notice of at least two weeks is expected. The final day of employment will be the last actual day worked; it may not be a day of time off. Please accept this letter as my formal resignation from (Position Name) at (Company Name), effective two weeks from today, (Current Date). A simple resignation letter format includes a resignation statement, an appropriate notice period, and an expression of gratitude.