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.You must complete this form no later than the end of the month prior to whichever month that your lump sum will be processed. From my lump sum payout on the. Contact Central Management Services (CMS) at. 1-800-442-1300 for information on how to name your beneficiary. An executive deferred compensation plan allows highincome employees to put off paying taxes on part of their income until retirement. The SURS Deferred Compensation 457 Plan (also known as the SURS DCP) is an investment plan available to all actively contributing SURS members. Internal Revenue Code Section 457 provides taxadvantaged treatment for certain nonqualified deferredcompensation plans. A 457(b) plan is a tax-deferred retirement savings plan.