Plans eligible under 457(b) allow employees of sponsoring organizations to defer income taxation on retirement savings into future years. Tarrant County offers an optional tax-deferred retirement savings program called Deferred Compensation (457(b) plan).However, a participant's annual deferrals during the taxable year under a ' 457(b) plan are reported on Form W-2, Wage and Tax. Taxable Wages represents a defined type of wages used in the calculation of a tax.