The following are the things to keep in mind when writing an immediate resignation letter: Write the date first. Explain only necessities.The short answer is 'no'though two weeks may be necessary if you signed an employment agreement. Some companies choose to pay "two weeks in lieu of notice" when they decide not to let the employee work following notice. It's time to quit the job, and you're not giving two weeks' notice. Here's how to politely write a resignation letter, effective immediately. Employee shall send a written notification to the supervisor at least 2 weeks in advance of resignation. 2. This includes giving two weeks notice, not one day or one week. There is no legal obligation to provide notice of quitting a job or providing any kind of resignation letter. The recommended timeline for providing a resignation letter is at least two weeks prior to your planned last day.