You can review the plan documents, policies, reports, and disclosures for the NC 401(k) and NC 457 Plans on the Supplemental Retirement Board of Trustees' page. A 457(b) plan is a tax-deferred retirement savings plan.Funds are withdrawn from an employee's income without being taxed and are only taxed upon withdrawal. Members should fill out and submit Form 5 (Withdrawing Your Retirement Service Credit and Contributions) to the Retirement Systems Division. You will need to contact either your service provider or the Pensions and Investments Division for the appropriate forms. If you have any questions or need help completing the forms, please contact ICMA-RC's Investor Services at 800-669-. Your local Benefits Office is a resource for answers to questions about your benefits and for benefits publications and forms. This is a voluntary pre-tax retirement savings plan designed to give employees a tax break today and build a "nest egg" for their future. Mecklenburg County offers a competitive benefits package to eligible employees and their eligible dependents. From healthcare to paid holidays and vacation.