How to write a resignation letter that's effective immediately? I need to prioritize my health, so I am resigning immediately." Expression of gratitude. Create an Immediate Resignation Letter without a notice period using our free printable templates. Resign with a professionally designed document. You don't have to give 2 weeks but the resignation form does need to be filled out and handed in. When you do, get 3 copies. If you say you have resigned, they will simply end your contract with immediate effect. Employers may also want to consider the impact an immediate separation would have on remaining employees. It's time to quit the job, and you're not giving two weeks' notice.