Treasury bonds, you may have noticed some series ee savings bonds mature on different dates. In order to redeem a bond, you have to be listed as the owner or co-owner of that bond. If you inherit a savings bond and youre not listed on the bond as an owner, that bond is. When a savings bond matures, you get the principal amount plus all of the accrued interest. If you own savings bonds in electronic form through treasury direct, log on to your account and follow the instructions to. --whats the tax implication of cashing a savings bond? Unless you elected to pay taxes on the interest on an annual basis, which few people do, you must pay federal income tax on the bonds in the year they mature -- even if you dont cash them in. The savings bonds purchased in the early 1990s may qualify for the savings bonds in education program. If thats the case, the interest earnings are excluded from federal income tax when bonds. Find out what your savings bonds are worth with our online calculator. The calculator will price series ee, series e, and series i savings bonds, and savings notes. Features include current interest rate, next accrual date, final maturity date, and year-to-date interest earned.