ALLIANT ENERGY CORP

For the period ended Sep 30, 2026. Filed Oct 30, 2026.

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Oct 30, 2026

LNT$73.46+1.1%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

See the whole filing, with its images and exhibits

Contents

Interstate Power and Light Company

For the Three Months · For the Nine Months
	Ended September 30,		Ended September 30,
	2026	2025	2026	2025
(in millions)
Revenues:
Electric utility	$631	$608	$1,499	$1,455
Gas utility	32	27	197	185
Steam and other	1	12	4	36
Total revenues	664	647	1,700	1,676
Operating expenses:
Electric production fuel and purchased power	89	106	198	213
Electric transmission service	119	115	320	322
Cost of gas sold	10	7	106	89
Other operation and maintenance	112	108	309	275
Depreciation and amortization	122	116	360	346
Taxes other than income taxes	16	15	47	44
Total operating expenses	468	467	1,340	1,289
Operating income	196	180	360	387
Other (income) and deductions:
Interest expense	60	54	174	154
Allowance for funds used during construction	(26)	(15)	(65)	(37)
Other	(3)	(3)	(7)	(6)
Total other (income) and deductions	31	36	102	111
Income before income taxes	165	144	258	276
Income tax benefit	(86)	(21)	(152)	(98)
Net income	$251	$165	$410	$374

Earnings per share data is not disclosed given Alliant Energy Corporation is the sole shareowner of all shares of IPL’s common stock outstanding during the periods presented.

	September 30,2026	December 31,2025
(in millions, except pershare and share amounts)
ASSETS
Current assets:
Cash and cash equivalents	$12	$7
Accounts receivable, less allowance for expected credit losses	261	185
Production fuel, at weighted average cost	20	18
Gas stored underground, at weighted average cost	26	24
Materials and supplies, at weighted average cost	122	111
Regulatory assets	90	59
Other	70	58
Total current assets	601	462
Property, plant and equipment, net	11,146	10,436
Other assets:
Regulatory assets	1,620	1,557
Deferred charges and other	44	40
Total other assets	1,664	1,597
Total assets	$13,411	$12,495

LIABILITIES AND EQUITY
Current liabilities:
Commercial paper	$—	$88
Accounts payable	293	232
Accounts payable to associated companies	51	45
Accrued taxes	66	53
Accrued interest	56	47
Regulatory liabilities	10	41
Other	95	80
Total current liabilities	571	586
Long-term debt, net	5,179	4,680
Other liabilities:
Deferred tax liabilities	1,273	1,278
Regulatory liabilities	522	545
Pension and other benefit obligations	24	30
Other	558	532
Total other liabilities	2,377	2,385
Commitments and contingencies (Note 12)
Equity:
Interstate Power and Light Company common equity:
Common stock - $2.50 par value - 24,000,000 shares authorized; 13,370,788 shares outstanding	33	33
Additional paid-in capital	3,647	3,497
Retained earnings	1,604	1,314
Total Interstate Power and Light Company common equity	5,284	4,844
Total liabilities and equity	$13,411	$12,495

	For the Nine Months
	Ended September 30,
	2026	2025
(in millions)
Cash flows from operating activities:
Net income	$410	$374
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	360	346
Deferred tax benefit and tax credits	(128)	(81)
Other	(43)	(16)
Other changes in assets and liabilities:
Accounts receivable	(366)	(392)
Regulatory assets	(110)	(72)
Deferred income taxes (a)	86	134
Other	40	(4)
Net cash flows from operating activities	249	289
Cash flows used for investing activities:
Construction and acquisition expenditures	(968)	(976)
Cash receipts on sold receivables	318	332
Other	(36)	(16)
Net cash flows used for investing activities	(686)	(660)
Cash flows from financing activities:
Common stock dividends	(120)	(270)
Capital contributions from parent	150	285
Proceeds from issuance of long-term debt	496	888
Payments to retire long-term debt	—	(300)
Net change in commercial paper	(88)	(50)
Other	4	(2)
Net cash flows from financing activities	442	551
Net increase in cash, cash equivalents and restricted cash	5	180
Cash, cash equivalents and restricted cash at beginning of period	7	29
Cash, cash equivalents and restricted cash at end of period	$12	$209
Supplemental cash flows information:
Cash (paid) received during the period for:
Interest	($165)	($153)
Income taxes, net (a)	$82	$94
Significant non-cash investing and financing activities:
Accrued capital expenditures	$134	$152
Beneficial interest obtained in exchange for securitized accounts receivable	$193	$231

(a)2026 and 2025 include $58 million and $90 million, respectively, of proceeds from renewable tax credits transferred to other corporate taxpayers.

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.