The serial number is printed on the front of your EE bond certificate, in the upper right corner

Your EE bond serial number is a unique identifier that the U.S. Treasury assigns to your bond when it is issued. It appears as an eight-digit number printed directly on the paper certificate itself. If you hold a physical bond, you do not need to look anywhere else — it is right there on the front, usually positioned above or to the right of the bond's face value and issue date.

The serial number matters because it is how you track your specific bond in Treasury records, report it on tax forms, and prove ownership if you need to replace a lost or damaged certificate. It is also the number you will need if you ever want to check the current value of your bond through the Treasury's online system.

Key Takeaways

  • The serial number is an eight-digit code printed on the front of your physical EE bond certificate in the upper right area.
  • You will need this number to look up your bond's current value on the Treasury Department's website or to report it on your tax return.
  • If you own bonds through TreasuryDirect (the digital system), the serial number appears in your online account under each bond's details.
  • Write down or photograph your serial number and store it somewhere safe, separate from the certificate itself.

Finding the serial number on a physical certificate

When you hold a paper EE bond in your hands, look at the front side. The serial number is printed in the upper right portion of the certificate, separate from other numbers like the issue date or denomination. It is always eight digits long and appears in a standard font, not in a special format or box.

The exact placement can vary slightly depending on when the bond was issued, but it will always be on the front face of the certificate. If you have an older bond, the number may be slightly faded, but it should still be readable. If the certificate is damaged and the serial number is no longer visible, you can contact the Treasury Department's Bureau of the Fiscal Service to request a replacement, though you will need to provide other proof of ownership.

How to find it in TreasuryDirect

If you own EE bonds through TreasuryDirect — the Treasury Department's online system for buying and holding bonds — you do not have a physical certificate. Instead, your bonds exist only in your digital account. To find the serial number, log into your TreasuryDirect account, navigate to "Manage Direct" or "My Bonds," and click on the specific bond you want to look up.

The serial number will be displayed in the bond's details section, usually labeled as "Serial Number" or "Bond Number." You can view it on screen, print your account statement, or take a screenshot. TreasuryDirect also allows you to download a full list of all your bonds with their serial numbers, which is useful if you own multiple bonds and want to keep a record.

Why you need the serial number

The serial number is your bond's permanent identifier in the Treasury system. When you want to check how much your bond is worth, you enter the serial number into the Treasury's online calculator along with the issue date and denomination. This tells you the current redemption value — what the Treasury will pay you if you cash it in today.

You also need the serial number if you are reporting your bonds on a tax return, especially if you are claiming the education tax exclusion or reporting interest income. The number appears on IRS Form 8815 (for the education exclusion) and helps the IRS match your reported bonds to Treasury records. If you lose a bond certificate or it is damaged, the serial number is part of the proof you will need to request a replacement from the Treasury.

Keeping your serial number safe

Because the serial number is the key to accessing and proving ownership of your bond, it is worth protecting. Write it down or take a clear photograph and store that information somewhere separate from the physical certificate — a safe deposit box, a password-protected file on your computer, or a secure note-taking app.

If someone gains access to your serial number alone, they cannot cash in your bond without also having the certificate itself or proving ownership to the Treasury. Still, keeping the number private is a good practice. If you have multiple bonds, create a simple list with the serial number, issue date, and denomination of each one. This makes it much easier to track your bonds' values and manage them over time.

What to do if you cannot find the serial number

If your bond certificate is too damaged to read the serial number, or if you have lost the certificate entirely, contact the Bureau of the Fiscal Service, which is the Treasury Department office that handles bond records. You can reach them by phone or mail, and you will need to provide information like the approximate issue date, the bond's denomination, and the name and Social Security number of the person who owns it.

The process to replace a lost or damaged certificate takes several weeks. The Treasury will verify your ownership based on the information you provide and issue a new certificate with the same serial number. If you own bonds through TreasuryDirect, you do not have this problem — your bonds are always accessible through your online account, and you can view the serial number anytime you log in.

Frequently Asked Questions

Can someone cash my bond if they know the serial number?

No. The serial number alone is not enough to cash a bond. The person would also need the physical certificate or would have to prove ownership to the Treasury Department. The serial number is useful information, but it is not a substitute for the certificate itself or legal ownership documentation.

Is the serial number the same as the bond number?

Yes, these terms are used interchangeably. The "serial number" and "bond number" refer to the same eight-digit identifier printed on your certificate or displayed in your TreasuryDirect account. Different Treasury documents may use one term or the other, but they mean the same thing.

Do I need the serial number to cash in my bond?

If you have the physical certificate, you do not need the serial number to cash it in — you can take the certificate itself to a bank or the Treasury. If you own the bond through TreasuryDirect, you simply log in and request redemption without needing to reference the serial number. The number is mainly useful for tracking, valuing, and replacing bonds.

What if the serial number is partially faded or illegible?

If you can read most of the digits, that is usually enough to look up your bond's value or report it. If the number is completely illegible, contact the Bureau of the Fiscal Service with the bond's issue date, denomination, and owner information, and they can help you identify it or issue a replacement certificate.