U.S. Savings Bonds: Postal Employees may purchase U.S. Savings Bonds through payroll deduction. U.S. Savings Bonds can be a smart addition to a personal savings program. Advantages include stable rates, paying no state or local income taxes on Savings Bond interest, and no federal tax until you cash the bonds. Backed by the U.S. Treasury, U.S. Savings Bonds are one of the most secure investments that you can make. To learn more about U.S. Savings Bonds visit the Savings Bonds Web site or call 1-800-4US-BOND (1-800-487-2663). To enroll, request PS Form 1192 (U.S. Savings Bond Authorization for Purchase and Request for Change) from your local Human Resources office.