Download any State of Illinois Deferred Compensation Plan form now using Acrobat Reader. These forms allow data to be typed into the form and saved.The State of Illinois Deferred Compensation Plan is a supplemental retirement program for State employees. This voluntary plan, called the SURS Deferred Compensation Plan (DCP), provides members an avenue to save more and generate additional income in retirement. Contact Central Management Services (CMS) at 1-800-442-1300 for information on how to name your beneficiary. Only individuals who perform services for the entity, either as employees or independent contractors, may be participants in a section 457 plan. 1.12. "Deferred Compensation" means as to a Participant the amount of Deferral Contributions, Rollover. A 457(b) plan is a tax-deferred retirement savings plan. Funds are withdrawn from an employee's income without being taxed and are only taxed upon withdrawal.