Instructions for Form IL-1120-X Amended Corporation Income and Replacement Tax Return - Illinois

Form IL-1120-X Amended Corporation Income and Replacement Tax Return - Illinois

This document contains official instructions for Form IL-1120-X , Amended Corporation Income and Replacement Tax Return - a form released and collected by the Illinois Department of Revenue. An up-to-date fillable Form IL-1120-X is available for download through this link.

Instruction Details:

• This 6-page document is available for download in PDF;
• Might not be applicable for the current year. Choose a more recent version;
• Complete, printable, and free.

Download your copy of the instructions by clicking the link below or browse hundreds of other forms in our library of forms released by the Illinois Department of Revenue.