This version of the form is not currently in use and is provided for reference only. Download this version of Instructions for Form IL-941-X for the current year.
This document contains official instructions for Form IL-941-X , Amended Illinois Withholding Income Tax Return - a form released and collected by the Illinois Department of Revenue. An up-to-date fillable Form IL-941-X is available for download through this link.
Q: What is Form IL-941-X?
A: Form IL-941-X is the Amended Illinois Withholding Income Tax Return.
Q: When should I file Form IL-941-X?
A: You should file Form IL-941-X when you need to make corrections or changes to a previously filed Illinois Withholding Income Tax Return.
Q: What information do I need to include on Form IL-941-X?
A: You should include the corrected or updated information for each quarter that you are amending, including the employer's identification number, employee wages, and withholding amounts.
Q: Can I file Form IL-941-X electronically?
A: No, Form IL-941-X must be filed by mail.
Q: Is there a deadline for filing Form IL-941-X?
A: Yes, Form IL-941-X must be filed within three years from the original due date of the Illinois Withholding Income Tax Return being amended.
Q: What happens after I file Form IL-941-X?
A: The Illinois Department of Revenue will review your amended return and process any refund or credit due to you, or send you a bill for any additional taxes owed.
Q: Do I need to attach any documentation with Form IL-941-X?
A: Yes, you should attach any documentation that supports the changes or corrections you are making on the amended return, such as W-2 forms or payroll records.
Q: Can I file an amended return for multiple quarters on the same Form IL-941-X?
A: No, you must file a separate Form IL-941-X for each quarter that you are amending.
Q: What should I do if I have already paid the additional taxes owed on the original return?
A: If you have already paid the additional taxes owed on the original return, you should indicate this on Form IL-941-X. The Illinois Department of Revenue will adjust your account and either issue a refund or apply the payment to any outstanding tax liabilities.
Instruction Details:
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