If you want to cash in your savings bonds, there are two ways to go about it. Neither involves the U.S. post office, which isn't permitted to cash in bonds. The redemption method depends on whether you own the old-fashioned paper bonds or the newer electronic version.
Paper Bonds
To cash in a paper bond, take it to your bank. Most banks and savings and loan institutions redeem savings bonds, but call ahead to make sure that's true of your particular branch. You'll need to confirm that you're the person named on the bond, which you can do via presentation of a valid driver's license, voter registration card or similar form of identification.
Online Redemption
To redeem electronic bonds, log in to TreasuryDirect.gov. If you don't already have an account, you can open one online. Money from the electronic bonds is deposited into your savings or checking account within two business days of the redemption.
