You want to give at least a two weeks' notice. Give your employer as much notice as possible to help them prepare for your departure.Below is a template that follows the proper two weeks' notice letter format that you can copy and fill in with your information. This guide provides 20 professional 2week notice templates that are easy to personalize in Word. Each template has a different tone and style. A two weeks notice letter is vital for maintaining professionalism, ensuring smooth transitions, securing future references, and legal compliance. The resignation should be short and give the fact that you are resigning and the date (please give at least two weeks notice). An atwill New York employee (most) can legally leave a job without two weeks notice.