How to write a resignation letter that's effective immediately? Explore more articles.When you write a letter of resignation, you have quit. Offering to stay two weeks is the standard in an effort to help transition the work etc. This article delves into the key factors that can justify leaving a job without notice. In this article, we cover everything you need to know about writing a resignation letter without notice and provide an example to get you started. Manager: Please accept this letter as my formal notice of resignation from (company name), effective on (last day of work). An exempt monthly-paid staff member is expected to give at least four (4) weeks notice. Notice should be in writing. It is best to submit a resignation letter as soon as possible to give the employer adequate time to prepare for your departure from the company.