The easiest way to check savings bond values is to visit the TreasuryDirect website. Paper bonds have all the information you’ll need to find their value thanks to the nifty lookup tool on the ...
The federal government issues two types of savings bonds: Series EE and Series I bonds. Series EE bonds double in value if held for at least 20 years, while I bonds keep pace with inflation.
Series EE savings bonds issued on and after May 2005 earn a fixed rate of interest and mature in 30 years. After 20 years, the bond receives a one-time adjustment that doubles its initial value.