Yeah...sounds fishy.
..another strange spitballed idea....any inheritance from someone in Florida the past couple years? A filed tax return for the deceased could definitely have processing delays resulting in some interest, and perhaps you were the beneficiary of such interest in some way. Whoever is handling the estate should have let you know what's going on...but all kinds of confusions and mixups can happen with estate tax handling.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
