[header] How to cash in series ee savings bonds [title] Know the different interest rates of ee savings bonds. [step] Knowing the value of ee savings bonds will help you decide whether it's a good idea (i.e. it makes financial sense) to cash in your bonds. Depending on the year issued, ee savings bonds have different interest rates. 
[substeps] Bonds bought before may 1997 earn different interest rates, depending on when they were bought. Bonds bought between may 1997 and april 2005 earn a variable interest rate, meaning their interest rate changes.