M-MTax
Level 12

Business & farm

Inheritance tax is not the issue here.

 

You file a 1041 for the Feds if there is income/gain and issue K-1s to the beneficiaries if any of that income or gain is, or has been, distributed to them.

 

Illinois most likely wants the names, addresses, and tax ID numbers to determine whether there are any foreign or out-of-state beneficiaries.