The Voluntary 457 Deferred Compensation plan provides a convenient way for City employees to save money for retirement with pre-tax earnings. The first step is to have the contractor complete Form W9, Request for Taxpayer Identification Number and Certification.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 Funds are withdrawn from an employee's income without being taxed and are only taxed upon withdrawal. Deferred compensation refers to money received in one year for work performed in a previous year often many years earlier. Deferred Compensation contributions are automatically withdrawn from your paycheck which provides a convenient way to save for retirement. No matter what you contribute, remember to start early!