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.
31 C.F.R. §359.5
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.
31 C.F.R. §359.5