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This version of the form is not currently in use and is provided for reference only. Download this version of
Instructions for Form IL-1120-ST
for the current year.
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 the Replacement Tax Return for Small Business Corporations in Illinois.
Q: Who needs to file Form IL-1120-ST?
A: Small Business Corporations in Illinois need to file Form IL-1120-ST.
Q: What is the purpose of Form IL-1120-ST?
A: Form IL-1120-ST is used to report and pay the replacement tax for small business corporations in Illinois.
Q: What information do I need to fill out Form IL-1120-ST?
A: You will need your corporation's income and deductions, as well as information about the business activities in Illinois.
Q: When is the deadline to file Form IL-1120-ST?
A: Form IL-1120-ST is due on the 15th day of the 3rd month following the close of the tax year.
Q: Are there any penalties for late filing of Form IL-1120-ST?
A: Yes, there are penalties for late filing, so it is important to file on time.
Instruction Details:
- This 22-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.
Download Instructions for Form IL-1120-ST Small Business Corporation Replacement Tax Return - Illinois
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