Series EE Bonds or I-Bonds http://www.treasurydirect.gov/indiv/...axconsider.htm http://www.treasurydirect.gov/indiv/...axconsider.htm TreasuryDirect: Series EE/E Savings Bonds Tax Considerations U.S. Treasury: Series EE/E Savings Bonds Tax Considerations they are taxed at the federal level Series EE/E Internal Revenue Service: Schedule B U.S. Treasury: Series EE/E Savings Bonds Tax Considerations Series EE/E Savings Bonds Tax Considerations http://www.treasurydirect.gov/indiv/...axconsider.htm "Individual - Series EE/E Savings Bonds Tax Considerations"