Instructions for Form IL-1120-ST Small Business Corporation Replacement Tax Return - Illinois

This document contains official instructions for Form IL-1120-ST , Small Business Corporation Replacement Tax Return - a form released and collected by the Illinois Department of Revenue.

FAQ

Q: What is Form IL-1120-ST?
A: Form IL-1120-ST is a Small Business Corporation Replacement Tax Return in Illinois.

Q: Who needs to file Form IL-1120-ST?
A: Small business corporations in Illinois that are subject to Illinois replacement tax must file Form IL-1120-ST.

Q: What is the purpose of Form IL-1120-ST?
A: Form IL-1120-ST is used to report the replacement tax liability for small business corporations in Illinois.

Q: When is Form IL-1120-ST due?
A: Form IL-1120-ST is due on or before the 15th day of the 3rd month following the close of the taxable year.

Q: Are there any penalties for late filing of Form IL-1120-ST?
A: Yes, late filing of Form IL-1120-ST may result in penalties and interest.

Q: Are there any exemptions available for small business corporations?
A: Yes, there are certain exemptions available for small business corporations in Illinois. Please refer to the instructions for Form IL-1120-ST for more information.

Q: Can Form IL-1120-ST be filed electronically?
A: Yes, Form IL-1120-ST can be filed electronically using the Illinois Department of Revenue's electronic filing system.

Q: What supporting documents should be attached to Form IL-1120-ST?
A: The instructions for Form IL-1120-ST provide a list of the supporting documents that should be attached to the return. Please refer to the instructions for more information.