credit illinois
Form IL-941 - 2025 Illinois Withholding Income Tax Return
Form IL-941. 2025 Illinois Withholding Income Tax Return Complete and attach to Form IL-941 to verify Illinois income and withholding records.
Learn more
Chapter 18: Illinois Update
Employers on an annual schedule should file and pay using Form IL-941-A. Employers on monthly and semi-weekly payment schedules should file quarterly using Form
Learn more
General Information Manual Payroll and Labor Accounting
On or before each April 30, July 31, October 31 and. January 31 a quarterly return (Form 941A, Figure 8) must be filed with the District Director of Internal.
Learn more