A 403(b) is considered tax-sheltered and a 457(b) a deferred compensation plan when your contributions are pre-tax. A deferred compensation agreement is an agreement between a company and an employee that withholds paying some of the employee's salary.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 Funds are withdrawn from an employee's income without being taxed and are only taxed upon withdrawal. Contract for deferred compensation. The assets and liabilities of a consolidated variable interest entity should be reported on the. Deferred compensation refers to money received in one year for work performed in a previous year often many years earlier.