ILLINOIS DEPARTMENT OF REVENUE 

                    DRAFT FORM 

Note: The draft you are looking for begins on the next page. 

Caution: DRAFT—NOT FOR FILING 

This is an early release draft of an Illinois Department of Revenue (IDOR) tax form or instructions, which 
IDOR is providing for substitute forms providers. Do not file draft forms and do not rely on draft forms 
and instructions for filing. We incorporate all significant changes to forms posted with this coversheet. 
However, unexpected issues occasionally arise, or legislation is passed—in this case, we will post a new 
draft of the form to alert users that changes were made to the previously posted draft.  

All forms and instructions have a page on our website at Tax Forms (illinois.gov) where you may see the 
final versions once they are released. Year-end income tax forms are usually released towards the end 
of January. 

If you wish, you can submit comments and questions to IDOR about draft or final forms and instructions 
at REV.VendorForms@illinois.gov. We will forward this information to the Office of Publications 
Management, where forms and publications are administered. 

IDR-1-DIS (N-08/23)          Printed by authority of State of Illinois, web only – one copy. 
 

                            If no payment is due or you make your payment electronically, do not file this form.

                                   We encourage all taxpayers to pay electronically whenever possible. 

                                                                            By paying electronically, you can . . .
                                                                                      Avoid mailing delays.
                                                       Save a trip to the post office and the price of a stamp. 
                                                        Get immediate confirmation of your payment.

                                TENTATIVEVisit tax.illinois.gov to make your payment electronically.FINAL

                                             You must use one of our electronic payment options if the department has 
                                       notified you that you are required to make payments electronically.

                          If you choose to pay the amount you owe by mail, complete the following steps:
                          1.   Enter your federal employer identification number (FEIN).
                          2.   Enter your name, C/O information (if applicable), address, and phone number.
                          3.   Enter the month and year your tax year ends.
                          4.  Enter the amount you are paying. Use whole dollars only.
                          5.   Detach the voucher and enclose a check or money order for the amount you are paying. 
                               •  Write your FEIN, tax year ending, and “IL-1120-ST-V” on your payment. 
                               •  Make your check or money order payable to “Illinois Department of Revenue.” 
                               •  Mail your completed voucher and payment to the address shown on the voucher. 
                                    If you are also filing your return by mail, you may attach your voucher and payment 
                               to the front page of your return, and mail your return, voucher, and payment together to the 
                               address shown on your return.

        * * * If you are not paying electronically, use this voucher to make all IL-1120-ST payments  
                                                     (extension, pass-through, prepayment, or return). * * *

     Printed by the authority of the state of Illinois - electronic only - one copy.

              Illinois Department of Revenue                                 Payment Voucher for Small 
                                                                             Business Corporation                                        
              IL-1120-ST-VIL-1120-ST-V(R-12/23)                              Replacement Tax
                                                                                                                    
                                  Mail to: Illinois Department of Revenue, P.O. Box 19053, Springfield, IL  62794-9053
                             If no payment is due or you make your payment electronically, do not file this form.
                                                                                                                                             Tax year ending
                                              FEIN:                                                                                          
                                                                                                                                                                            
       Name:                                                                                                                             Month           Year
                                                                                                                                                        
                     C/O:                                                                                                     $                                        00
                                                                                                                              Payment Amount (Whole dollars only)
       Mailing                                                                                              Write  your FEIN,   tax year ending, and “IL-1120-ST-V”    on your check or 
       address:                   
                                                                                                            money order and make it payable to “Illinois Department of Revenue.”
       City:                                                                State:                      ZIP:

       Phone:             (         )                                                                                                    *62912231V*