CFR > Title 31 - Money and Finance: Treasury > SUBTITLE B—Regulations Relating to Money and Finance > CHAPTER II—FISCAL SERVICE, DEPARTMENT OF THE TREASURY (parts 200 to 391) > SUBCHAPTER B—BUREAU OF THE PUBLIC DEBT (parts 306 to 391) > PART 359—OFFERING OF UNITED STATES SAVINGS BONDS, SERIES I > SUBPART A—General Information (§359.0 to §359.20-359.24) > 359.5—What is the maturity period of a Series I savings bonds?

359.5—What is the maturity period of a Series I savings bonds?

Series I savings bonds have a total maturity period of 30 years from the issue date, consisting of an original maturity period of 20 years and an extension period of 10 years.