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Series I Bonds

By Terry Savage on November 19, 2021 | Chicken Money

Hi Terry – I heard you on John Williams show on WGN and I thought you said the the interest on these bonds is not compounded. But the TreasuryDirect.gov site says that the interest is compounded semi-annually. Can you clarify? Thanks!

Terry Says

You are correct, and it looks like I spoke in error. Here is what the TreasuryDirect website says:

I bonds increase in value on the first day of each month, and interest is compounded semiannually based on each I bond’s issue date. An I bond’s issue date is the month and year in which full payment for the bond is received.
But today’s 7.12% interest won’t compound for the rest of the life of the bond. However, it looks like the subsequent 6-month rate will be added to the compounded increase at the end of the first 6 months — an even better deal than I thought!



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