The serial number is printed on the front of the bond, usually in the upper right corner or along the top edge

Every U.S. savings bond has a unique serial number printed directly on the physical certificate. On paper bonds issued before 2012, the serial number appears as an 8-digit code, typically located in the upper right corner of the front side. The number is printed in black ink and stands out from the bond's background design. On some older bonds, you may also see it printed along the top edge or in the upper left corner — the exact placement varies slightly depending on the bond series and issue year.

If you own a Series EE or Series I bond purchased after 2012, your bond exists only in digital form through TreasuryDirect, the U.S. Department of the Treasury's online system. In that case, you won't have a physical certificate to search. Instead, you can find your serial number by logging into your TreasuryDirect account and viewing your bond holdings. The system displays the serial number alongside other bond details like purchase date, denomination, and current value.

Key Takeaways

  • Paper savings bonds display the serial number as an 8-digit code on the front, most often in the upper right corner.
  • Digital bonds purchased through TreasuryDirect show the serial number in your online account under your bond holdings.
  • The serial number is unique to each bond and is needed if you report a lost or stolen bond to the Treasury.
  • If you cannot locate the serial number on an old bond, contact the Bureau of the Fiscal Service for help identifying your bond.

How to read the serial number format

The serial number on a paper bond is always 8 digits long and appears as a single continuous string of numbers. It does not contain letters, dashes, or other characters — just eight numerals. For example, a serial number might read 12345678. This number is printed in a standard font and is separate from any other identifying marks on the bond, such as the issue date or denomination.

The serial number serves as the bond's permanent identifier throughout its life. It remains the same whether the bond is in your possession, held in a safe deposit box, or registered with the Treasury. If you ever need to report the bond lost, stolen, or destroyed, you will need this number along with the bond's series, denomination, and issue date.

Where to look on different bond series

The placement of the serial number can vary slightly depending on which bond series you own. On Series EE bonds printed before 2012, the serial number typically sits in the upper right corner of the front face. On Series I bonds from the same era, the location is usually the same. Older Series E bonds, which stopped being issued in 1974, also carry the serial number on the front, though the design of the certificate differs from modern bonds.

If you have a bond from the 1980s or 1990s, check the top edge of the certificate first — many bonds from that period have the serial number printed horizontally across the top. If it is not there, scan the upper corners. The serial number is always printed in black ink and is meant to be easy to read, so it should not be hidden or faint. If the bond is damaged or faded, the number may be harder to see, but it should still be visible under good lighting.

What to do if you cannot find the serial number

If your bond is old, damaged, or the serial number is too faded to read clearly, you can contact the Bureau of the Fiscal Service, which manages savings bonds for the Treasury. You will need to provide other identifying information about the bond, such as the series (EE, I, E, etc.), the denomination (how much you paid for it), and the issue date. The Bureau can help you locate the serial number or confirm the bond's details in their records.

You can reach the Bureau of the Fiscal Service by phone at 844-284-2676 or through their website. Have your bond in front of you when you call, and be ready to describe its condition and any information you can read on it. If the bond was registered with the Treasury at the time of purchase, they may have the serial number on file already.

Serial numbers for digital bonds in TreasuryDirect

When you purchase a Series EE or Series I bond through TreasuryDirect, the Treasury assigns a serial number automatically. You do not choose it or print it yourself. To view the serial number, log into your TreasuryDirect account using your username and password. Navigate to the "Manage My Savings Bonds" section and select the bond you want to view.

The bond details page displays the serial number along with the purchase date, current value, maturity date, and interest earned. You can take a screenshot or print this page for your records. If you ever need to reference the serial number — for instance, if you are updating your will or reporting the bond to an insurance company — this is where you will find it. The serial number for a digital bond is also 8 digits and serves the same purpose as the number on a paper bond.

Why you might need the serial number

The serial number becomes important in several situations. If you report a bond lost or stolen, the Treasury uses the serial number to flag it in their system and prevent anyone else from cashing it. If you are including the bond in your will or estate plan, the serial number helps your heirs identify the exact bond you are referring to. Insurance companies may also ask for the serial number if you are insuring valuable bonds.

Additionally, if you own multiple bonds of the same series and denomination, the serial number is the only way to distinguish one from another. Keeping a record of your bonds' serial numbers — along with their series, denomination, and purchase date — is a practical step in managing your savings bond portfolio. Many people store this information in a spreadsheet or a document kept in a safe place, separate from the bonds themselves.

Frequently Asked Questions

Can I look up a savings bond by serial number online?

If the bond is registered in your TreasuryDirect account, you can log in and search by serial number. If the bond is a paper certificate not linked to TreasuryDirect, you cannot search for it online. The Treasury does not maintain a public database of paper bond serial numbers. You would need to contact the Bureau of the Fiscal Service directly.

What if the serial number is partially worn off or illegible?

Contact the Bureau of the Fiscal Service at 844-284-2676 with the bond's series, denomination, and issue date. They can cross-reference their records to identify the bond and provide the complete serial number. Bring the bond itself or a clear photo of it when you call.

Is the serial number the same as the bond's issue number?

Yes, they are the same thing. The serial number is the unique identifier assigned to each bond at the time it is issued. Some older documents may refer to it as the "issue number," but it is the same 8-digit code printed on the front of the bond.

Do I need the serial number to cash a savings bond?

No. To cash a paper bond, you typically need only the bond itself and a form of identification. However, if the bond is lost or stolen, the serial number helps the Treasury locate it in their system and prevent fraud. For digital bonds in TreasuryDirect, you do not handle a physical certificate, so the serial number is tracked automatically in your account.