Learn about common tax and Form 990 reporting issues associated with nonqualified deferred compensation arrangements. You must also complete a Designation of Beneficiary Form to select a beneficiary(ies) to receive benefits of the Plan in case of your death.Complete the Pension Exclusion Computation Worksheet (13A) shown in Instruction 13 in the Maryland resident tax booklet. Internal Revenue Code Section 457 provides taxadvantaged treatment for certain nonqualified deferredcompensation plans.