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Income Taxes
 3 Months Ended
Mar. 31, 2025
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The Registrants reported the following effective tax rates:
Three Months Ended March 31,
20252024
CenterPoint Energy (1)
21 %18 %
Houston Electric (2)
19 %20 %
CERC (3)
25 %19 %

(1)CenterPoint Energy’s higher effective tax rate for the three months ended March 31, 2025 compared to the three months ended March 31, 2024 was primarily driven by the impact of the non-deductible goodwill associated with the sale of the Louisiana and Mississippi natural gas LDC businesses. For additional detail, see Note 3.
(2)Houston Electric’s lower effective tax rate for the three months ended March 31, 2025 compared to the three months ended March 31, 2024 was primarily driven by a decrease in state income taxes.
(3)CERC’s higher effective tax rate for the three months ended March 31, 2025 compared to the three months ended March 31, 2024 was primarily driven by the impact of the non-deductible goodwill associated with the sale of the Louisiana and Mississippi natural gas LDC businesses on March 31, 2025 and the absence of impacts associated with the state deferred tax remeasurement and valuation allowance related to the Louisiana and Mississippi natural gas LDC businesses recorded in 2024 upon classification as held for sale. For additional detail, see Note 3.

CenterPoint Energy reported a net uncertain tax liability, inclusive of interest and penalties, of $32 million as of March 31, 2025. The Registrants believe that it is reasonably possible that the Registrants will recognize a $10 million tax benefit, including penalties and interest, in the next 12 months as a result of a lapse of statutes on older exposures, a tax settlement, and/or a resolution of open audits.
Tax Audits and Settlements. Tax years through 2022 have been audited and settled with the IRS for CenterPoint Energy. For tax years 2023, 2024 and 2025, the Registrants are participants in the IRS’s Compliance Assurance Process.