I don't believe this question has been answered in previous topics. Mother has EE bond purchased in her name for $ 100---it has not matured- she dies when the bond has 200 accrued interest---she has not elected to report the interest each year. The son is the sole beneficiary of the will . He inherits the bond and the 200 is not reported on mothers final return or the fiduciary. A couple of years pass and the bond matures worth 500. Does the son report the 500 in year of maturity. In other words is the 200 deferred until son cashes on maturity? Publication 550 -if the decedent uses the cash method interest before death and after is reported when the bond matures. If there are multiple beneficiaries does the will have to name the beneficiary the the specific bond to the person.