Most employers ask that you give them two weeks' notice before walking out the door for good. The resignation is basically a "Request to be excused from duty" and like any other request, is not effective until granted.: Complete a Resignation Letter and indicate that you will be resigning. Once you've served your notice of resignation, your notice period as per your employment contract (e.g. Your notice period will be observed according to your contract, and we will work closely with you to wrap up any outstanding responsibilities.