Question

1099 forms in Illinois

What 1099 forms need to be attached to Illinois State tax returns?

Employee

If you are mailing your Illinois tax return, you should include copies of any 1099 with Illinois state withholding reported on it.

Attach a completed Schedule IL-WIT and all withholding forms (W-2s, 1099s, etc.) to support the amount you claim as Illinois Income Tax withheld on Line 25. Form IL-1040 instructions. See Tips to Speed Up Processing on page 2

TurboTax will generate and print a Filing Instructions page which will list what you need to include along with the mailing address.

**Say "Thanks" by clicking the thumb icon in a post**Mark the post that answers your question by clicking on "Mark as Best Answer"

1 reply