This depends on the names in which the EE U.S. savings bonds were issued. At the time of purchase, a bond can be registered to a single person (“single ownership”) or to two people (“co-ownership”), or it can be registered to a primary owner and a beneficiary (“beneficiary”). In the case of co-ownership, either named individual can do whatever he or she likes with the bond without consent of the other person; if one dies, the other becomes the single …
