Company: AILIM
Filing Date: 2025-11-06
Form Type: 10-Q
Source: 0001002910-25-000129
Chunk: 147

Company: Ameren Illinois Co
Filing Date: 2025-11-06
Form: 10-Q
Item: Part I, Item 1
Chunk 147
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ISA and increased amortization of prior PISA deferrals, increased depreciation and amortization by $10 million in both periods.

•The lower net deferral pursuant to a tracker related to certain excess deferred income taxes, which increased depreciation and amortization expenses by $7 million and $10 million, respectively.

•Depreciation and amortization rate changes effective June 1, 2025, pursuant to the April 2025 MoPSC electric rate order, which increased depreciation and amortization expenses by $4 million and $5 million, respectively.

•The absence of depreciation expense associated with Ameren Missouri’s Rush Island Energy Center decreased expenses by $9 million and $27 million, respectively.

•Lower amortization of prior deferrals and the higher net under-recovery of RESRAM eligible expenses decreased depreciation and amortization expenses by $10 million and $16 million, respectively. 

61

Taxes Other Than Income Taxes

Increase (Decrease) by SegmentOverall Ameren Increase of $14 Million (QTD YoY)Overall Ameren Increase of $23 Million (YTD YoY)Total by Segment(a)

(a)Includes $3 million, $2 million, $7 million, and $6 million at Ameren Transmission in the three months ended September 30, 2025 and 2024, and in the nine months ended September 30, 2025 and 2024, respectively. Also includes other/intersegment eliminations of $2 million, $4 million, $9 million, and $11 million in the three months ended September 30, 2025 and 2024, and in the nine months ended September 30, 2025 and 2024, respectively.

Ameren MissouriAmeren Illinois Natural GasOther/Intersegment EliminationsAmeren Illinois Electric DistributionAmeren Transmission

Taxes other than income taxes increased $14 million in the three months ended September 30, 2025, compared with the year-ago period, primarily because of an increase of $10 million in gross receipts tax at Ameren Missouri due to increased retail electric sales. 

Taxes other than income taxes increased $23 million in the nine months ended September 30, 2025, compared with the year-ago period, primarily because of an increase of $13 million, $6 million, and $5 million at Ameren Missouri, Ameren Illinois Electric Distribution and Ameren Illinois Natural Gas, respectively. Taxes other than income taxes increased primarily