In this article, we discuss how to create a 30day resignation letter, why it's important and provide a template and examples to help you write your own. Looking to resign with a One Month Notice Resignation Letter?Use our resignation letter template for notice-period roles. Learn how to write a resignation letter with a notice period. Learn how to write a 30day resignation letter. Read key tips for crafting a respectful notice for maintaining professional relationships. I regretfully have to inform you that, after much thought, I have decided to resign and please accept this letter as a formal notice of my resignation. Template for an employee to use to resign and give notice. A notice period is the time between your submitting your letter of resignation and your last working day. TaxProf Blog provides news, information and resources for tax professors.