Under the Minimum Wage Law and the Illinois Wage Payment and Collection Act, an employer is obligated to pay an employee for all time worked. In Illinois, employers are required to adhere to specific guidelines for paying their employees.A worker may file a complaint with the Illinois Department of. Illinois, a state with its unique labor laws and regulations, fosters the intricate relationship between employers and employees. Wages of executive, administrative and professional employees, as defined in the Federal Fair Labor Standards Act of 1939, may be paid once a month. Is there anything that should not be included in the Request for a Statement of Interest? The law does not require employers to post jobs.