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Income Taxes
 12 Months Ended
Dec. 31, 2025
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The income tax provision consisted of the following amounts:

 Year Ended December 31,
(In millions, except effective income tax rate)202520242023
Current   
U.S. Federal$(17)$55 $26 
State49 82 84 
Foreign16 5 (12)
Total — current48 142 98 
Deferred 
U.S. Federal221 333 50 
State11 (134)(61)
Foreign(10)(18)(98)
Total — deferred222 181 (109)
Total income tax expense/(benefit)$270 $323 $(11)
Effective income tax rate23.8 %22.3 %5.2 %
On July 4, 2025, the OBBB was enacted into law. The OBBB includes changes to U.S. tax law applicable to NRG beginning in 2025. The impact of the OBBB on the Company’s consolidated financial statements has been reflected in its current and deferred taxes, however, there is no material impact to income tax expense for the year ended December 31, 2025.
The IRA enacted on August 16, 2022, introduced new provisions including a 15% corporate alternative minimum tax and a 1% excise tax on net share repurchases with both taxes effective beginning in fiscal year 2023 for NRG. On September 12, 2024, Treasury and the IRS released proposed regulations that provide guidance on the application of the CAMT. The proposed regulations allow the exclusion of unrealized mark-to-market gains and losses, related to qualified hedge transactions, from adjusted financial statement income. The Company will continue to evaluate the applicable corporation status and the impact of the CAMT based on the proposed guidance. As of December 31, 2025, NRG as an applicable corporation is subject to the CAMT, however, there is no impact on the Company’s provision for income taxes from the CAMT as of December 31, 2025.
The following represented the domestic and foreign components of income/(loss) before income taxes:
 Year Ended December 31,
(In millions)202520242023
U.S. $1,087 $1,485 $261 
Foreign47 (37)(474)
Total$1,134 $1,448 $(213)
Reconciliations of the U.S. federal statutory tax rate to NRG's effective tax rate were as follows:
 Year Ended December 31,
2025
(In millions, except effective income tax rate)AmountPercent
Tax at federal statutory income tax rate$238 21.0 %
State and local income taxes, net of federal effect(a)
46 4.1 %
Nontaxable and nondeductible items:
Stock compensation(41)(3.6)%
Excess executive compensation29 2.6 %
Other5 0.4 %
Foreign Reconciling Items:
Other foreign jurisdictions(6)(0.5)%
Changes in prior year unrecognized tax benefit(1)(0.1)%
Income tax expense$270 23.8 %
Effective income tax rate23.8 %
(a) State taxes in Texas and Pennsylvania make up the majority (greater than 50 percent) of the tax effect in this category
 Year Ended December 31,
(In millions, except effective income tax rate)20242023
Income/(Loss) before income taxes$1,448 $(213)
Tax at federal statutory tax rate304 (45)
State taxes92 (22)
Foreign rate differential 1 (10)
Changes in state valuation allowances(110)42 
Nondeductible loss on Convertible Senior Notes repurchases56 — 
Permanent differences23 31 
Stock compensation(19)— 
Recognition of uncertain tax benefits1 12 
Deferred impact of state tax rate changes(24)3 
Foreign tax refunds— (17)
Return to provision adjustments(1)(5)
Income tax expense/(benefit)$323 $(11)
Effective income tax rate22.3 %5.2 %
For the year ended December 31, 2025, NRG's effective income tax rate was higher than the federal statutory tax rate of 21% primarily due to the state tax expense, partially offset by favorable permanent differences.
For the year ended December 31, 2024, NRG's effective income tax rate was higher than the federal statutory tax rate of 21% primarily due to permanent differences and state tax expense partially offset by tax benefits from the revaluation of state deferred tax assets, and decrease of certain state valuation allowances.
For the year ended December 31, 2023, NRG's effective income tax rate was lower than the federal statutory tax rate of 21% primarily due to permanent differences and changes in state valuation allowances.
The temporary differences, which gave rise to the Company's deferred tax assets and liabilities consisted of the following:
 As of December 31,
(In millions)20252024
Deferred tax assets:  
U.S. Federal net operating loss carryforwards$1,395 $1,477 
State net operating loss carryforwards326 341 
Foreign net operating loss carryforwards107 106 
Deferred revenues323 335 
Difference between book and tax basis of property101 322 
Federal tax credit carryforwards288 269 
Deferred compensation, accrued vacation and other reserves170 174 
Interest disallowance carryforward per §163(j) of the Tax Act26 77 
Pension and other postretirement benefits33 46 
Allowance for credit losses34 37 
Equity compensation44 30 
Federal benefit on state uncertain tax positions13 13 
Inventory obsolescence9 13 
U.S. capital loss1 1 
Other45 46 
Total deferred tax assets2,915 3,287 
Deferred tax liabilities:
Intangibles amortization (excluding goodwill)338 486 
Derivatives85 193 
Capitalized contract costs345 249 
Equity method investments84 88 
Goodwill71 56 
Emissions allowances14 16 
Total deferred tax liabilities937 1,088 
Total deferred tax assets less deferred tax liabilities 1,978 2,199 
Valuation allowance(150)(144)
Total net deferred tax assets, net of valuation allowance$1,828 $2,055 
The following table summarizes NRG's net deferred tax position as presented in the consolidated balance sheets:
 As of December 31,
(In millions)20252024
Deferred tax asset $1,843 $2,067 
Deferred tax liability(15)(12)
Net deferred tax asset$1,828 $2,055 
The primary driver for the decrease in the net deferred tax asset from $2.1 billion as of December 31, 2024 to $1.8 billion as of December 31, 2025 is due to a decrease in the difference between the book and tax basis of property.
Deferred tax assets and valuation allowance
Net deferred tax balance — As of December 31, 2025 and 2024, NRG recorded a net deferred tax asset, excluding valuation allowance, of $2.0 billion and $2.2 billion, respectively. The Company believes certain state net operating losses may not be realizable under the more-likely-than-not measurement and as such, a valuation allowance was recorded as of December 31, 2025 as discussed below.
NOL carryforwards — As of December 31, 2025, the Company had tax-effected cumulative U.S. NOLs consisting of carryforwards for federal and state income tax purposes of $1.4 billion and $326 million, respectively. In addition, NRG has tax-effected cumulative foreign NOL carryforwards of $107 million. The majority of NRG's NOL carryforwards have no expiration date.
Valuation allowance — As of December 31, 2025, the Company's tax-effected valuation allowance was $150 million, consisting of state NOL carryforwards and foreign NOL carryforwards. The valuation allowance was recorded based on the assessment of cumulative and forecasted pre-tax book earnings and the future reversal of existing taxable temporary differences.
Taxes Receivable and Payable
As of December 31, 2025, NRG recorded a current federal receivable of $13 million, a current net state receivable of $12 million and a current net foreign payable of $5 million.
Uncertain tax benefits
NRG has identified uncertain tax benefits with after-tax value of $53 million and $57 million as of December 31, 2025 and 2024, for which NRG has recorded a non-current tax liability of $59 million and $62 million, respectively. The Company recognizes interest and penalties related to uncertain tax benefits in income tax expense. The Company recognized $1 million of interest expense for the year ended December 31, 2025, $2 million for the year ended December 31, 2024, and $1 million for the year ended December 31, 2023. As of December 31, 2025 and 2024, NRG had cumulative interest and penalties related to these uncertain tax benefits of $6 million and $5 million, respectively.
Tax jurisdictions — NRG is subject to examination by taxing authorities for income tax returns filed in the U.S. federal jurisdiction and various state and foreign jurisdictions including operations located in Australia and Canada.
The Company is no longer subject to U.S. federal income tax examinations for years prior to 2022. With few exceptions, state and Canadian income tax examinations are no longer open for years before 2015.
The following table summarizes uncertain tax benefits activity:
 As of December 31,
(In millions)20252024
Balance as of January 1$57 $73 
Increase due to current year positions2 12 
Settlements, payments and statute closure(6)(28)
Uncertain tax benefits as of December 31$53 $57 
Income Taxes Paid
The following table summarizes income taxes paid, net of refunds:
 Year Ended December 31,
 (In millions)2025
U.S. state and local:
Texas$22 
New York10 
California7 
Pennsylvania7 
Other14 
$60 
Foreign:
Other$7 
Total$67