The first step is to have the contractor complete Form W9, Request for Taxpayer Identification Number and Certification. Yes, the employer could allow independent contractors to participate in a 457b plan, but they are not required to do so.To register and access employer information, you must first create an account using your e-mail address and user created password. Deferred Compensation Plan (if applicable). You may contribute the maximum less the total amount you have contributed during the current calendar year. For tax years beginning in 2020 or later, the deferrals are reported on Form 1099MISC, box 12. Create a Plan Document: Establish the terms of your plan, including contribution limits, investment options, and loan provisions.