The Voluntary 457 Deferred Compensation plan provides a convenient way for City employees to save money for retirement with pre-tax earnings. Set some personal goals for your future and make a plan to get there.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 Funds are withdrawn from an employee's income without being taxed and are only taxed upon withdrawal. The CalPERS 457 Plan is a voluntary deferred retirement savings plan that allows you to defer any amount, subject to annual limits, from your paycheck. Gender: Male. Female.