The Illinois Department of Revenue (“IDOR”) lists these filing requirements for trusts:
https://tax.illinois.gov/research/taxinformation/income/fiduciary.html
Based on this IDOR page, there are (at least) two separate circumstances that would require a trust receiving a distribution (“Beneficiary Trust”) to file an IL-1041:
- It received a distribution from an Illinois trust that included pass-through withholding; or
- It had Illinois income.
As I understand, here are the operational ways to determine each of these conditions.
Illinois Pass-Through Withholding
Look at the IL-1041 for the trust making (as opposed to the receiving) the distribution (“Distributing Trust”). If there are zeros (or blanks) on the Distributing Trust’s IL-1041, Schedule D ("Beneficiary Information"), Section B ("Member's information") in both Columns F ("Share of Illinois Income subject to pass-through withholding") and G ("Pass-through withholding") for the Beneficiary Trust, then the Beneficiary Trust does NOT need to file an IL-1041 due to Illinois pass-through withholding.
Illinois Income
Look at the Beneficiary Trust’s Schedule K-1-T. If there is a non-zero amount in Column A (“Beneficiary’s share of US Schedule K-1, less nonbusiness income”) for any line (19-24) in Step 4 ("Figure your beneficiary's share of your business income or loss") then the Beneficiary Trust has Illinois business income and must file an IL-4041 to report it.
@Anonymous_ @Mike9241
Please reply with corrections, if any.
Thank you.