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IL IL-941 quarterly 941
 

IL IL-941 quarterly 941

 

IL IL-941 quarterly 941

 
  • Do it by Wed, Dec 31.
  • Due 1 days later (Thu, Jan 1).
  • Allow 1 day, for postal pickup.
 

Manual

  • Paper: Letter (8.5in x 11in)
  • Copies to print: 1
  • This return is submitted on Apr 30, Jul 31, Oct 31, Jan 31 (month end following the end of the quarter).
  • Employers can also submit reports online.
  • Mail to:
    Illinois Department Of Revenue
    PO BOX 19052
    Springfield IL  62794-9052

Online

 

    Payable to "Illinois Department of Revenue"

    • Payment basis is based on what the State assigns employers based on their assessment.
    • Monthly or semi-weekly.
    • The lookback period is the one-year period ending on June 30 of the immediately preceding calendar year.
    • Monthly:
      • Withholding tax liability was $12,000 or less during the lookback period.
      • Due on the 15th day of the month following the reporting period.
    • Semi-weekly:
      • Withholding tax liability was more than $12,000 during the lookback period.
      • For Wednesday, Thursday, and/or Friday payments, tax payment due by the following Wednesday.
      • For Saturday, Sunday, Monday, and/or Tuesday payment, tax payment due by the following Friday.
    • If the due date falls on a Saturday, Sunday or legal holiday, it must be submitted on the first working day AFTER.
    • Semi-weekly payments must be done online.

 

Manual

  • Employers must file this return even if there are no reportable wages or taxes due for the reporting period.
  • Do not adjust prior quarter wages on this report.
  • Employers must make withholding tax payments electronically if they are assigned to the semi-weekly payment basis.
  • Employers must file one return for each quarter regardless of their payment basis.

Online

  • Employers must file this return even if there are no reportable wages or taxes due for the reporting period.
  • Do not adjust prior quarter wages on this report.
  • Employers must make withholding tax payments electronically if they are assigned to the semi-weekly payment basis.
  • Employers must file one return for each quarter regardless of their payment basis.
 
  • To report taxes withheld from employees to the state.
 
    Due For period starting
  1. Thu, Jan 31, 2019Mon, Oct 1, 2018
  2. Wed, Oct 31, 2018Sun, Jul 1, 2018
  3. Tue, Jul 31, 2018Sun, Apr 1, 2018
  4. Mon, Apr 30, 2018Mon, Jan 1, 2018
 
    Due For period starting
  1. Wed, Jan 31, 2018Sun, Oct 1, 2017
  2. Tue, Oct 31, 2017Sat, Jul 1, 2017
  3. Mon, Jul 31, 2017Sat, Apr 1, 2017
  4. Mon, May 1, 2017Sun, Jan 1, 2017
 
    Due For period starting
  1. Tue, Jan 31, 2017Sat, Oct 1, 2016
     
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