This version of the form is not currently in use and is provided for reference only. Download this version of Instructions for Form ST-556-X, 017 for the current year.
This document contains official instructions for Form ST-556-X , and Form 017 . Both forms are released and collected by the Illinois Department of Revenue.
Q: What is Form ST-556-X?
A: Form ST-556-X is the Amended Sales Tax Transaction Return used in Illinois.
Q: When should I use Form ST-556-X?
A: You should use Form ST-556-X when you need to amend a previously filed Sales Tax Transaction Return (Form ST-556).
Q: What information do I need to complete Form ST-556-X?
A: You will need the original Form ST-556 information, as well as the corrected or updated information for the amended return.
Q: Are there any fees or penalties for filing Form ST-556-X?
A: Yes, there may be fees or penalties associated with filing an amended return. It is recommended to review the instructions provided with Form ST-556-X or consult with the Illinois Department of Revenue for more information.
Instruction Details:
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