My uncle passed away and had a brokerage account owned jointly with my grandmother. The stock in the account was sold after my uncle's death but the Form 1099-B came under his SSN. My grandmother's return has already been filed. How do I handle this situation? Should I still report the gross proceeds on my uncle's return even though the transactions were after his death? The gross proceeds were about $100k and the gain (mostly LT) was about $43k. (Note: An estate with a federal EIN was opened for him since there was some property he owned by himself (he was never married). This is still in probate.)
