Download a free immediate effect resignation letter template, easily customizable for your personal situation. 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. Learn how to write a letter of resignation to quit your job on good terms. Here's what to include in a resignation letter, with examples and templates. How to write a resignation letter that's effective immediately? In the first sentence, clearly state your intention to resign and that your resignation is effective immediately. Learn how to write a letter of resignation to quit your job on good terms. Here's what to include in a resignation letter, with examples and templates. An employee may be appointed to fill an administrative position, hired to fill a regular (full or part-time) position, or employed in a temporary capacity.