ILLINOIS DEPARTMENT OF REVENUE 

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

                 Illinois Department of Revenue                                                                                                                               
                                                                       *34312231V*
                 2023 Schedule 80/20                                                                                                                                             Year ending
                 Related-Party Expenses                                                                                                                                          _____   _____
                 For tax years ending on or after December 31, 2023.                                                                                                              Month         Year
                 Attach to your Form IL-1120, IL-1120-ST, IL-1065, or IL-1041.                                                                                                      IL Attachment No. 14

Enter your name as shown on your Illinois tax return. 
                                                                                                                                                                    Enter your federal employer identification number (FEIN).
Step 1:  Identify your affiliated companies   
                                                A                    B                                                                                                        C         D - Totals                             
1    Enter the name of each
    affiliated company.               1                                                                                                                                 
2       Enter the FEIN for each 
    affiliated company.               2                                                                                                                                 
2a      Check if this is a newly added
    affiliatedTENTATIVEcompany. See instructions.                                                                                                                                FINAL

Step 2:  Figure your addition modifications                        All taxpayers may complete this section.
3a  Amount of interest paid to                                                                                                                                                          If you have more 
    each affiliated company.          3a                                                                                                                                                affiliated companies 
  b  Interest exempt from                                                                                                                                                               to report than space 
    the amount on Line 3a.            3b                                                                                                                                                provided, complete 
                                                                                                                                                                                        and attach additional 
  c     Subtract Line 3b from 3a.     3c                                                                                                                                                Schedules 80/20. 
4       Amount of dividends                                                                                                                                                             Report the totals in 
    received from each                                                                                                                                                                  column D of the last 
    affiliated company.               4                                                                                                                                                 additional Schedule 
5       Subtract Line 4 from Line 3c.                                                                                                                                                   only.
    If negative, enter zero here
    and the result as a positive 
    amount on Line 7.                  5                                                                                                                                            5                                         
6a      Intangible expenses paid to 
    each affiliated company.          6a                                                                                                                                           
  b     Intangible expenses amount on
        Line 6a exempt from add-back. 6b                                                                                                                                            
Check the boxes on Line 6c to identify the reasons the amount on Line 6b is exempt from addback. You may check multiple boxes. 
See instructions.
  c     Foreign company or state                                                                                                                                               
        No principal purpose                                           
          Add-back unreasonable                                        
        Alternative apportionment                                      
  d  Subtract Line 6b from 6a.        6d                                                                                                                                   
7       Any excess of dividends
    received from each affiliated 
    company on Line 4 over the 
    interest expense addition on 
    Line 3c.                           7                                                                                                                                           
8       Subtract Line 7 from Line 6d.
    If negative, enter zero.           8                                                                                                                                              8                                       
9       Total addition modifications
    Add Lines 5 and 8.              9                                                                                                                                                 9 
        Enter the amount here. See instructions.
Step 3:  Figure your subtraction modifications for affiliated companies 
           All taxpayers may complete Steps 3 and 4 if an addition modification was figured in Step 2.
                                                                                                                                                                                  
10      Enter the amount of interest 
      received from each affiliated 
      company.                      10                                                                                                                                             
  11    Enter the lesser of 
      Line 5 or Line 10.           11                                                                                                                                               11                                          
   12   Enter the amount of 
      intangible income 
      received from each  
      affiliated company.              12                                                                                                                                             
   13   Enter the lesser of 
      Line 8 or Line 12.             13                                                                                                                                             13 
14      Add Column D, Line 11 and Column D, Line 13
        Enter the total here and on Page 2, Line 15.                                                                                                               14
                                                                                                                                                                                                                              
        Schedule 80/20 Front (R-12/23)                       All taxpayers continue to Page 2  

                    Illinois Department of Revenue 
                2023 Schedule 80/20                                 *34312232V*
                                                                    
Enter your name as shown on your Illinois tax return.                                                 Enter your federal employer identification number (FEIN).

Read this information first - If you attach multiple copies of Schedule 80/20 to your return, complete this page once and attach it 
as the last page of Schedule 80/20. Failure to do so may result in a delay in the processing of your return.

Step 4:  Figure your total subtraction modification
15   Enter the amount from Line 14.                                                                                                                   15 
         If you are not an affiliated company, skip Lines 16 through 22 and complete Line 23.
      TENTATIVE  If you are an affiliated company, complete Lines 16 through 22 and Line 23.                                        FINAL

16   Enter the name and FEIN of the                   Name    
     U.S. company that paid you interest 
     or intangible expenses.                          FEIN 
17   Enter the amount of interest received from the U.S. company.                                                                                     17  
18   Enter the amount of interest paid to you from the U.S. company’s Schedule 80/20, Line 5.                                                         18  
19   Enter the lesser of Line 17 or Line 18.                                                                                                          19   
 20  Enter the intangible income  received from the U.S. company.                                                                                     20  
  21 Enter the amount of intangible  expenses paid to you from the U.S. company’s Schedule 80/20, Line 8.                                             21  
  22 Enter the lesser of Line 20 or Line 21.                                                                                                          22   

 All taxpayers complete Line 23. 
23   Total subtraction modifications. 
     Add Lines 15, 19, and 22. 
     Enter the amount here. See instructions.                                                                                                         23  

                                             This form is authorized as outlined by the Illinois Income Tax Act. Disclosure of this 
                                             information is REQUIRED. Failure to provide information could result in a penalty. 

      Schedule 80/20 Back (R-12/23)      Printed by the authority of the state of Illinois - electronic only - one copy.