One (1) Week Notice Letter – is written notification provided to an employer that an employee will no longer be working with the company within seven (7) days. The short answer is 'no'though two weeks may be necessary if you signed an employment agreement.Writing a resignation letter with notice period? Find samples for different situations (like career change, family reasons, etc.) and expert tips here. 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. The complete guide to writing your resignation letter including expert tips, free copyable samples, and templates. Your last two weeks on the job could spell the difference between leaving on a positive note and tarnishing your reputation on your way out of the door. Download a free immediate effect resignation letter template, easily customizable for your personal situation. Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation.