Generally, interest on U.S. Savings bonds are not excluded from Federal Income Taxes. Most states exclude the interest from State Income taxes.
Having said that, there are some some exclusions for interest used for education. There are rules etc., that have to be followed. See IRS Publication 550
For further information about this visit:
https://www.treasury.gov/resource-center/faqs/Markets/Pages/interest.aspx
https://savingsbonds.com/bond_basics/education-tax-exclusion-savings-bonds.cfm
https://www.treasurydirect.gov/forms/savpdp0051.pdf
**Disclaimer: Effort has been made to offer correct information; but due to the discussion forum limitations, the poster disclaims any legal responsibility for the accuracy of the poster's response**
