This document contains official instructions for Form IL-941 , Illinois Withholding Income Tax Return - a form released and collected by the Illinois Department of Revenue. An up-to-date fillable Form IL-941 is available for download through this link.
Q: What is Form IL-941?
A: Form IL-941 is the Illinois Withholding Income Tax Return.
Q: Who needs to file Form IL-941?
A: Employers in Illinois who withhold income tax from employees' wages must file Form IL-941.
Q: When is Form IL-941 due?
A: Form IL-941 is due on a quarterly basis. The due dates are April 30, July 31, October 31, and January 31.
Q: What information do I need to provide on Form IL-941?
A: You will need to provide information about your business, such as your employer identification number (EIN) and total Illinois withholding for the quarter.
Q: Are there any penalties for late filing of Form IL-941?
A: Yes, there are penalties for late filing. The penalty for late filing is 2% of the unpaid tax per month, up to a maximum of 25%.
Instruction Details:
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.