Under Illinois law, your employer may not be able to fire you because you are sick or taking care of a sick family member. Can an employer terminate me without advance notice or without giving a reason or an unfair reason for the termination?Before filing a lawsuit in court for wrongful termination, you need to file a complaint with the Illinois Department of Human Rights and the EEOC. In Illinois, wrongful termination occurs when an employee is fired for reasons that are illegal under state or federal law. Illinois Wrongful Termination. Even so, in Illinois, many actions can be considered "wrongful termination," leading to a judicial decision that the wronged party is entitled to damages. Filing a Wrongful Termination Lawsuit. Employees who have been wrongfully terminated while they are sick have the option to pursue financial recovery. Any complaints filed regarding potential earned sick leave violations occurring in 2024 are not within the Commission's jurisdiction. Normally the employer has broad discretion but if it is retaliating and discriminating based on medical leave you may pursue a claim.