Income Tax Expense (Benefit) in USD of ALLIANT ENERGY CORP from Q1 2010 to Q3 2025

Taxonomy & unit: us-gaap: USD
Description: Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.
Summary: ALLIANT ENERGY CORP quarterly and annual Income Tax Expense (Benefit) history and change rate from Q1 2010 to Q3 2025.
ALLIANT ENERGY CORP Income Tax Expense (Benefit) for the quarter ending 30 Sep 2025 was $-18,000,000, a 71% increase year-over-year.
ALLIANT ENERGY CORP Income Tax Expense (Benefit) for the twelve months ending 30 Sep 2025 was $-117,000,000, a 12.5% decline year-over-year.
ALLIANT ENERGY CORP annual Income Tax Expense (Benefit) for 2024 was $-114,000,000, a 2950% decline from 2023.
ALLIANT ENERGY CORP annual Income Tax Expense (Benefit) for 2023 was $4,000,000, a 81.8% decline from 2022.
ALLIANT ENERGY CORP annual Income Tax Expense (Benefit) for 2022 was $22,000,000.

Income Tax Expense (Benefit), Trailing 12 Months (USD)

Income Tax Expense (Benefit), Quarterly (USD)

Income Tax Expense (Benefit), YoY Quarterly Change (%)

Income Tax Expense (Benefit), Annual (USD)

Income Tax Expense (Benefit), YoY Annual Change (%)

ALLIANT ENERGY CORP Quarterly Income Tax Expense (Benefit) (USD)

Period	TTM Value	Value	YoY Chg	Change %	Start Date	End Date	Report	Filed	Fiscal Year	Fiscal Period
Q3 2025	$-117,000,000	$-18,000,000	+$44,000,000	+71%	01 Jul 2025	30 Sep 2025	10-Q	07 Nov 2025	2025	Q3
Q2 2025	$-161,000,000	$-43,000,000	-$10,000,000	-30%	01 Apr 2025	30 Jun 2025	10-Q	08 Aug 2025	2025	Q2
Q1 2025	$-151,000,000	$-47,000,000	-$37,000,000	-370%	01 Jan 2025	31 Mar 2025	10-Q	09 May 2025	2025	Q1
Q4 2024	$-114,000,000	$-9,000,000	-$10,000,000	-1,000%	01 Oct 2024	31 Dec 2024	10-K	21 Feb 2025	2024	FY
Q3 2024	$-104,000,000	$-62,000,000	-$67,000,000	-1,340%	01 Jul 2024	30 Sep 2024	10-Q	07 Nov 2025	2025	Q3
Q2 2024	$-37,000,000	$-33,000,000	-$33,000,000		01 Apr 2024	30 Jun 2024	10-Q	08 Aug 2025	2025	Q2
Q1 2024	$-4,000,000	$-10,000,000	-$8,000,000	-400%	01 Jan 2024	31 Mar 2024	10-Q	09 May 2025	2025	Q1
Q4 2023	$4,000,000	$1,000,000	+$5,000,000		01 Oct 2023	31 Dec 2023	10-K	21 Feb 2025	2024	FY
Q3 2023	$-1,000,000	$5,000,000	-$9,000,000	-64%	01 Jul 2023	30 Sep 2023	10-Q	01 Nov 2024	2024	Q3
Q2 2023	$8,000,000	$0	-$4,000,000	-100%	01 Apr 2023	30 Jun 2023	10-Q	02 Aug 2024	2024	Q2
Q1 2023	$12,000,000	$-2,000,000	-$10,000,000	-125%	01 Jan 2023	31 Mar 2023	10-Q	03 May 2024	2024	Q1
Q4 2022	$22,000,000	$-4,000,000	+$4,000,000	+50%	01 Oct 2022	31 Dec 2022	10-K	21 Feb 2025	2024	FY
Q3 2022	$18,000,000	$14,000,000	+$35,000,000		01 Jul 2022	30 Sep 2022	10-Q	03 Nov 2023	2023	Q3
Q2 2022	$-17,000,000	$4,000,000	+$21,000,000		01 Apr 2022	30 Jun 2022	10-Q	04 Aug 2023	2023	Q2
Q1 2022	$-38,000,000	$8,000,000	+$36,000,000		01 Jan 2022	31 Mar 2022	10-Q	05 May 2023	2023	Q1
Q4 2021	$-74,000,000	$-8,000,000	+$2,000,000	+20%	01 Oct 2021	31 Dec 2021	10-K	16 Feb 2024	2023	FY
Q3 2021	$-76,000,000	$-21,000,000	-$1,000,000	-5%	01 Jul 2021	30 Sep 2021	10-Q	08 Nov 2022	2022	Q3
Q2 2021	$-75,000,000	$-17,000,000	-$9,000,000	-112%	01 Apr 2021	30 Jun 2021	10-Q	05 Aug 2022	2022	Q2
Q1 2021	$-66,000,000	$-28,000,000	-$9,000,000	-47%	01 Jan 2021	31 Mar 2021	10-Q	29 Apr 2022	2022	Q1
Q4 2020	$-57,000,000	$-10,000,000	-$29,700,000	-151%	01 Oct 2020	31 Dec 2020	10-K	24 Feb 2023	2022	FY
Q3 2020	$-27,300,000	$-20,000,000	-$43,000,000	-187%	01 Jul 2020	30 Sep 2020	10-Q	05 Nov 2021	2021	Q3
Q2 2020	$15,700,000	$-8,000,000	-$19,200,000	-171%	01 Apr 2020	30 Jun 2020	10-Q	06 Aug 2021	2021	Q2
Q1 2020	$34,900,000	$-19,000,000	-$34,100,000	-226%	01 Jan 2020	31 Mar 2020	10-Q	07 May 2021	2021	Q1
Q4 2019	$69,000,000	$19,700,000	+$13,800,000	+234%	01 Oct 2019	31 Dec 2019	10-K	18 Feb 2022	2021	FY
Q3 2019	$55,200,000	$23,000,000	+$11,300,000	+97%	01 Jul 2019	30 Sep 2019	10-Q	03 Nov 2020	2020	Q3
Q2 2019	$43,900,000	$11,200,000	-$2,400,000	-18%	01 Apr 2019	30 Jun 2019	10-Q	10 Aug 2020	2020	Q2
Q1 2019	$46,300,000	$15,100,000	-$1,700,000	-10%	01 Jan 2019	31 Mar 2019	10-Q	08 May 2020	2020	Q1
Q4 2018	$48,000,000	$5,900,000	+$4,100,000	+228%	01 Oct 2018	31 Dec 2018	10-K	19 Feb 2021	2020	FY
Q3 2018	$43,900,000	$11,700,000	-$14,400,000	-55%	01 Jul 2018	30 Sep 2018	10-Q	07 Nov 2019	2019	Q3
Q2 2018	$58,300,000	$13,600,000	-$7,600,000	-36%	01 Apr 2018	30 Jun 2018	10-Q	02 Aug 2019	2019	Q2
Q1 2018	$65,900,000	$16,800,000	-$800,000	-4.5%	01 Jan 2018	31 Mar 2018	10-Q	03 May 2019	2019	Q1
Q4 2017	$66,700,000	$1,800,000	-$10,400,000	-85%	01 Oct 2017	31 Dec 2017	10-K	21 Feb 2020	2019	FY
Q3 2017	$77,100,000	$26,100,000	+$18,600,000	+248%	01 Jul 2017	30 Sep 2017	10-Q	07 Nov 2018	2018	Q3
Q2 2017	$58,500,000	$21,200,000	+$3,100,000	+17%	01 Apr 2017	30 Jun 2017	10-Q	03 Aug 2018	2018	Q2
Q1 2017	$55,400,000	$17,600,000	-$4,000,000	-19%	01 Jan 2017	31 Mar 2017	10-Q	03 May 2018	2018	Q1
Q4 2016	$59,400,000	$12,200,000	+$1,300,000	+12%	01 Oct 2016	31 Dec 2016	10-K	22 Feb 2019	2018	FY
Q3 2016	$58,100,000	$7,500,000	-$20,300,000	-73%	01 Jul 2016	30 Sep 2016	10-Q	03 Nov 2017	2017	Q3
Q2 2016	$78,400,000	$18,100,000	+$6,900,000	+62%	01 Apr 2016	30 Jun 2016	10-Q	04 Aug 2017	2017	Q2
Q1 2016	$71,500,000	$21,600,000	+$1,100,000	+5.4%	01 Jan 2016	31 Mar 2016	10-Q	04 May 2017	2017	Q1
Q4 2015	$70,400,000	$10,900,000	+$12,800,000		01 Oct 2015	31 Dec 2015	10-K	23 Feb 2018	2017	FY
Q3 2015	$57,600,000	$27,800,000	+$15,400,000	+124%	01 Jul 2015	30 Sep 2015	10-Q	04 Nov 2016	2016	Q3
Q2 2015	$42,200,000	$11,200,000	-$2,000,000	-15%	01 Apr 2015	30 Jun 2015	10-Q	02 Aug 2016	2016	Q2
Q1 2015	$44,200,000	$20,500,000	-$100,000	-0.48%	01 Jan 2015	31 Mar 2015	10-Q	05 May 2016	2016	Q1
Q4 2014	$44,300,000	$-1,900,000	-$15,600,000	-114%	01 Oct 2014	31 Dec 2014	10-K	24 Feb 2017	2016	FY
Q3 2014	$59,900,000	$12,400,000	-$5,200,000	-30%	01 Jul 2014	30 Sep 2014	10-Q	06 Nov 2015	2015	Q3
Q2 2014	$65,100,000	$13,200,000	+$2,700,000	+26%	01 Apr 2014	30 Jun 2014	10-Q	06 Aug 2015	2015	Q2
Q1 2014	$62,400,000	$20,600,000	+$8,500,000	+70%	01 Jan 2014	31 Mar 2014	10-Q	01 May 2015	2015	Q1
Q4 2013	$53,900,000	$13,700,000	+$8,100,000	+145%	01 Oct 2013	31 Dec 2013	10-K	24 Feb 2016	2015	FY
Q3 2013	$45,800,000	$17,600,000	-$21,700,000	-55%	01 Jul 2013	30 Sep 2013	10-Q	07 Nov 2014	2014	Q3
Q2 2013	$67,500,000	$10,500,000	-$6,300,000	-38%	01 Apr 2013	30 Jun 2013	10-Q	07 Aug 2014	2014	Q2
Q1 2013	$73,800,000	$12,100,000	-$15,600,000	-56%	01 Jan 2013	31 Mar 2013	10-Q	02 May 2014	2014	Q1
Q4 2012	$89,400,000	$5,600,000	-$9,100,000	-62%	01 Oct 2012	31 Dec 2012	10-K	25 Feb 2015	2014	FY
Q3 2012	$98,500,000	$39,300,000	-$4,000,000	-9.2%	01 Jul 2012	30 Sep 2012	10-Q	07 Nov 2013	2013	Q3
Q2 2012	$102,500,000	$16,800,000	+$28,000,000		01 Apr 2012	30 Jun 2012	10-Q	02 Aug 2013	2013	Q2
Q1 2012	$74,500,000	$27,700,000	+$5,300,000	+24%	01 Jan 2012	31 Mar 2012	10-Q	03 May 2013	2013	Q1
Q4 2011	$69,200,000	$14,700,000	-$11,200,000	-43%	01 Oct 2011	31 Dec 2011	10-K	25 Feb 2014	2013	FY
Q3 2011	$80,400,000	$43,300,000	-$20,800,000	-32%	01 Jul 2011	30 Sep 2011	10-Q	09 Nov 2012	2012	Q3
Q2 2011	$101,200,000	$-11,200,000	-$34,200,000	-149%	01 Apr 2011	30 Jun 2011	10-Q	03 Aug 2012	2012	Q2
Q1 2011	$135,400,000	$22,400,000	-$12,300,000	-35%	01 Jan 2011	31 Mar 2011	10-Q	04 May 2012	2012	Q1
Q4 2010	$147,700,000	$25,900,000			01 Oct 2010	31 Dec 2010	10-K	26 Feb 2013	2012	FY
Q3 2010		$64,100,000			01 Jul 2010	30 Sep 2010	10-Q	03 Nov 2011	2011	Q3
Q2 2010		$23,000,000			01 Apr 2010	30 Jun 2010	10-Q	05 Aug 2011	2011	Q2
Q1 2010		$34,700,000			01 Jan 2010	31 Mar 2010	10-Q	05 May 2011	2011	Q1

ALLIANT ENERGY CORP Annual Income Tax Expense (Benefit) (USD)

Period	Value	YoY Chg	Change %	Start Date	End Date	Report	Filed	Fiscal Year	Fiscal Period
2024	$-114,000,000	-$118,000,000	-2,950%	01 Jan 2024	31 Dec 2024	10-K	21 Feb 2025	2024	FY
2023	$4,000,000	-$18,000,000	-82%	01 Jan 2023	31 Dec 2023	10-K	21 Feb 2025	2024	FY
2022	$22,000,000	+$96,000,000		01 Jan 2022	31 Dec 2022	10-K	21 Feb 2025	2024	FY
2021	$-74,000,000	-$17,000,000	-30%	01 Jan 2021	31 Dec 2021	10-K	16 Feb 2024	2023	FY
2020	$-57,000,000	-$126,000,000	-183%	01 Jan 2020	31 Dec 2020	10-K	24 Feb 2023	2022	FY
2019	$69,000,000	+$21,000,000	+44%	01 Jan 2019	31 Dec 2019	10-K	18 Feb 2022	2021	FY
2018	$48,000,000	-$18,700,000	-28%	01 Jan 2018	31 Dec 2018	10-K	19 Feb 2021	2020	FY
2017	$66,700,000	+$7,300,000	+12%	01 Jan 2017	31 Dec 2017	10-K	21 Feb 2020	2019	FY
2016	$59,400,000	-$11,000,000	-16%	01 Jan 2016	31 Dec 2016	10-K	22 Feb 2019	2018	FY
2015	$70,400,000	+$26,100,000	+59%	01 Jan 2015	31 Dec 2015	10-K	23 Feb 2018	2017	FY
2014	$44,300,000	-$9,600,000	-18%	01 Jan 2014	31 Dec 2014	10-K	24 Feb 2017	2016	FY
2013	$53,900,000	-$35,500,000	-40%	01 Jan 2013	31 Dec 2013	10-K	24 Feb 2016	2015	FY
2012	$89,400,000	+$20,200,000	+29%	01 Jan 2012	31 Dec 2012	10-K	25 Feb 2015	2014	FY
2011	$69,200,000	-$78,500,000	-53%	01 Jan 2011	31 Dec 2011	10-K	25 Feb 2014	2013	FY
2010	$147,700,000			01 Jan 2010	31 Dec 2010	10-K	26 Feb 2013	2012	FY

* An asterisk sign (*) next to the value indicates that the value is likely invalid.