You will need to file an Indiana form IT-40PNR as a nonresident.
However, you should first make sure that the partnership/LLC did not file a composite tax return on your behalf. If they did, then you have no further Indiana filing requirement.
Additionally, the partnership/LLC may have remitted withholding on your behalf. This will be reflected on your Indiana K-1 line 8. You can use this withholding when you prepare your Indiana tax return.
If you were not included in a composite tax filing, then you will need to complete the IT-40PNR. You will include your Indiana K-1 information on this return. Complete this return first. Once completed, then you will know your Indiana tax and can take a credit for taxes paid to other states on your Illinois tax return.
*A reminder that posts in a forum such as this do not constitute tax advice.
Also keep in mind the date of replies, as tax law changes.
