About & Data Sources

SavingsBondValues.com is an independent calculator and inventory tool for paper U.S. savings bonds (Series EE, Series I, Series E, and Savings Notes).

Where the numbers come from

All redemption values are reproduced from the U.S. Treasury's official Savings Bonds Value Files dataset (public domain), published by the Bureau of the Fiscal Service every May and November. The data currency is displayed on the calculator. Values include the 3-month interest penalty for bonds under five years old — matching what a bank would pay.

How your data is handled

It isn't — by design. The valuation runs entirely in your browser. Your bond list, denominations and serial numbers are stored in your browser's local storage on your device and are never transmitted to us or anyone else. See the privacy policy.

Independence

This site is not affiliated with, operated by, or endorsed by the U.S. Department of the Treasury, the Bureau of the Fiscal Service, or TreasuryDirect. To buy or cash bonds, use treasurydirect.gov or your bank.

Contact

Questions or corrections: support@savingsbondvalues.com

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