Illinois is an at will state so unless you signed a contract, you don't even have to give them a notice. Usual no legal consequences unless there was an employment contract requiring two weeks notice.Is an employee required to give two weeks notice when quitting a job? Please accept my sincerest apologies for being unable to provide you and the Davidson Team with a notification that includes a minimum two-week notice. Atwill employees can quit at any time with no notice. However, it is customary to give two weeks notice (or even more if you hold a high level position). Learn how to craft a professional resignation letter without notice with our guide. 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. Download Illinois Immediate Letter Of Resignation template, modify and send for signing using BoloForms Signature.