Illinois Administrative Code
Title 86 - REVENUE
Part 100 - INCOME TAX
Subpart D - ILLINOIS NET LOSS DEDUCTIONS FOR LOSSES OCCURRING ON OR AFTER DECEMBER 31, 1986
Section 100.2350 - Illinois Net Losses and Illinois Net Loss Deductions, for Losses Occurring On or After December 31, 1986, of Corporations that are Members of a Unitary Business Group: Changes in Membership
Current through Register Vol. 48, No. 38, September 20, 2024
a) Member entering the group from a separate return year. IITA Section 207 provides that the amount of Illinois net loss that is available as a carryback or carryover is determined after applying the allocation and apportionment provisions of Article 3. That Section does not limit the amount of Illinois net loss that may be carried into a given year. As a consequence, no such limitation shall apply.
Corp. A |
Corp. B |
Corp. C |
Combined |
|
Base Income |
1,000 |
|||
Business Income |
1,000 |
|||
Apportionment Percentage |
10% |
15% |
25% |
50% |
Apportionment Income |
100 |
150 |
250 |
500 |
Illinois net loss deduction |
(170) |
--- |
--- |
(170) |
Illinois net income |
--- |
150 |
250 |
330 |
Loss Carryover |
(70) |
Corp. A |
Corp. B |
Corp. C |
Combined |
|
Base Income |
1,000 |
|||
Business Income |
1,000 |
|||
Apportionment Percentage |
10% |
15% |
25% |
50% |
Apportionment Income |
100 |
150 |
250 |
500 |
Net loss deduction |
--- |
(200) |
(400) |
(600) |
Illinois net income (loss) |
100 |
(50) |
(150) |
(100) |
b) Member leaving the group during a separate or combined return year. If a corporation ceases to be a member of a unitary business group during the year, regardless of whether it filed a separate or combined return, the amount of net loss attributable to that member for that portion of the tax year prior to leaving shall be determined in accordance with Section 100.5270(f)(2) of this Part.
c) Carryover and Carryback of Combined Net Losses to Separate Return Years
Corp. A |
Corp. B |
Combined |
|
Base Income |
(200) |
||
Business Income |
(200) |
||
Apport. % |
10% |
20% |
30% |
Aport. Income |
(20) |
(40) |
(60) |
Illinois Net Loss |
(20) |
(40) |
(60) |
Corp. A |
60 x 20/60 = 20 |
Corp. B |
60 x 40/60 = 40 |
Corp. A |
200 x 10% = 20 |
Corp. B |
200 x 20% = |
Corp. A |
Corp. B |
Combined |
|
Base Income |
200 |
||
Business Income |
200 |
||
Apport. % |
10% |
20% |
30% |
Apport. Income |
20 |
40 |
60 |
Illinois Net Loss Deduction |
(100) |
(100) |
|
Illinois Net Income/Loss |
(80) |
40 |
(40) |
Corp. A |
40 x 100/100 = 40 |
Corp. B |
40 x 0/100 = 0 |