How do I make contribution changes? For questions about your deferred compensation account or to enroll in the plan, visit sfdcp.Org or call (415) 487-7500. Location. 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. 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 Funds are withdrawn from an employee's income without being taxed and are only taxed upon withdrawal. No information is available for this page. SAN FRANCISCO Deferred Compensation Plan 3. Possible Tax Consequences.