The Illinois Cover Sheet For application For Professional Compensation is a form used to submit an application for professional compensation from the State of Illinois. It is used by attorneys, health care providers, and others seeking payment for services rendered. There are three types of cover sheets available: an Application for Professional Compensation, an Application for Reimbursement, and an Application for Reimbursement of Professional Expenses. The Application for Professional Compensation is used to submit a claim for payment, and the Application for Reimbursement is used to submit a claim for reimbursement of expenses incurred. The Application for Reimbursement of Professional Expenses is used to submit a claim for reimbursement of professional expenses incurred during the course of providing services. All three forms require the completion of a detailed description of the services provided, the amount of payment requested, and the signature of the applicant.