A voluntary retirement savings plan that provides quality investment options, investment educational programs and related services. NACo's Deferred Compensation Program has helped more than 1.5 million county employees and retirees save for and live comfortably in retirement.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 Funds are withdrawn from an employee's income without being taxed and are only taxed upon withdrawal. Our plan allows you to save on taxes while you save for higher education. Pay no income tax on earnings.