I was issued a 1099-INT by the Commonwealth of Massachusetts Office of the Comptroller.
My mother died 35 years ago. Last April, while scanning my state's unclaimed money list, it seems that the state has possession of $28k of forgotten funds that had belonged to my mother. When I claimed the funds, they sent her estate a check for $32k. They just sent her estate a 1099-INT for the $4000 in interest.
As the state paid the interest, is it exempt from federal taxes? Anyone got a cite one way or another?