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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2025
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit)
Components of Income Tax Expense
Tax benefit from discontinued operations, in the following tables, includes income tax benefits related to the Commercial Renewables Disposal Groups. See Note 2 for further details.
 Year Ended December 31, 2025
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Current income taxes
Federal(a)
$(565)$(278)$134 $(118)$264 $66 $125 $65 
State (6)30 21 (3)74 2 13 7 
Foreign 2        
Total current income taxes (569)(248)155 (121)338 68 138 72 
Deferred income taxes       
Federal 1,101 432 259 319 (57)(3)(64)37 
State 135 27 76 29 9 3 11 3 
Total deferred income taxes(b)
1,236 459 335 348 (48) (53)40 
ITC amortization (25)(17)(5)(4)(1) (3) 
Income tax expense from continuing operations 642 194 485 223 289 68 82 112 
(a)    Transferrable Federal credits under IRC Section 6418 are recorded net of discount in current Federal income tax expense.
(b)     Total deferred income taxes include income tax attribute (generation)/utilization, under the tax sharing agreement, as follows:
Duke Energy: $354 million
Duke Energy Carolinas: $(36) million
Progress Energy: $(11) million
Duke Energy Progress: $(29) million
Duke Energy Florida: $4 million
Duke Energy Ohio: $(14) million
Duke Energy Indiana: $(45) million
Piedmont: $(2) million
 Year Ended December 31, 2024
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions) EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Current income taxes        
Federal
$(365)$178 $359 $373 $14 $52 $70 $40 
State 31 75 34 40 (12)12 (6)
Foreign — — — — — — — 
Total current income taxes (332)253 393 413 55 82 34 
Deferred income taxes
Federal 858 10 (22)(215)181 (19)40 
State 81 (25)59 (6)86 21 
Total deferred income taxes(a)
939 (15)37 (221)267 (11)61 
ITC amortization (17)(12)(4)(3)(1)— — — 
Income tax expense from continuing operations 590 226 426 189 268 64 71 95 
Tax benefit from discontinued operations (50)— — — — — — — 
Total income tax expense included in Consolidated Statements of Operations
$540 $226 $426 $189 $268 $64 $71 $95 
(a)    Total deferred income taxes include the utilization of NOL carryforwards and tax credit carryforwards of $523 million at Duke Energy and $8 million at Duke Energy Indiana. In addition, total deferred income taxes include the generation of NOL carryforwards and tax credit carryforwards of $47 million at Duke Energy Carolinas, $85 million at Progress Energy, $66 million at Duke Energy Progress, $30 million at Duke Energy Florida, $26 million at Duke Energy Ohio, and $8 million at Piedmont.
 Year Ended December 31, 2023
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Current income taxes        
Federal(b)
$71 $173 $459 $198 $279 $(46)$10 $44 
State 22 38 71 (3)
Foreign — — — — — — — 
Total current income taxes 75 195 497 202 350 (49)19 47 
Deferred income taxes
Federal 319 (43)(154)(69)(89)111 77 25 
State 53 (7)38 19 — 14 12 
Total deferred income taxes(a)
372 (50)(116)(50)(89)112 91 37 
ITC amortization (9)(4)(4)(3)— — — — 
Income tax expense from continuing operations
438 141 377 149 261 63 110 84 
Tax benefit from discontinued operations (359)— — — — — — — 
Total income tax expense included in Consolidated Statements of Operations
$79 $141 $377 $149 $261 $63 $110 $84 
(a)    Total deferred income taxes includes the generation of NOL carryforwards and tax credit carryforwards of $214 million at Duke Energy and $54 million at Duke Energy Indiana. In addition, total deferred income taxes includes the generation of NOL carryforwards and tax credit carryforwards of $2 million at Duke Energy Carolinas, $116 million at Progress Energy, $59 million at Duke Energy Progress, $5 million at Duke Energy Florida, $22 million at Duke Energy Ohio, and $15 million at Piedmont.
(b)    Total current federal income tax at Duke Energy includes corporate alternative minimum tax, net of tax credit utilization, of $69 million. In addition, under the IRA transferability provision, Progress Energy elected to sell $28 million of PTCs generated by Duke Energy Florida.
Schedule of Income before Income Tax, Domestic and Foreign
Duke Energy Income from Continuing Operations before Income Taxes
 Years Ended December 31,
(in millions)202520242023
Domestic$5,674 $5,145 $4,700 
Foreign38 49 67 
Income from continuing operations before income taxes$5,712 $5,194 $4,767 
Summary of Effective Tax Rates
The following tables present a reconciliation of income tax expense at the U.S. federal statutory tax rate to the actual tax expense from continuing operations.
 Year Ended December 31, 2025
DukeDuke EnergyProgressDuke Energy
($ in millions and effective tax rate in percent)EnergyCarolinasEnergyProgress
U.S. Federal statutory income tax$1,200 21.0 %$483 21.0 %$609 21.0 %$316 21.0 %
Federal
Tax credits
PTCs (solar)
(65)(1.1)%  %(65)(2.2)%(1) %
Amortization of PTCs (nuclear)
(36)(0.6)%(36)(1.6)%  %  %
Amortization of ITCs
(25)(0.4)%(17)(0.7)%(5)(0.2)%(4)(0.3)%
Other(23)(0.4)%(11)(0.5)%(9)(0.3)%(6)(0.4)%
Nontaxable and Nondeductible
    Regulatory Deferrals
AFUDC equity income(68)(1.2)%(30)(1.3)%(25)(0.9)%(21)(1.4)%
AFUDC equity depreciation46 0.8 %19 0.8 %19 0.7 %11 0.7 %
Amortization of EDIT(466)(8.2)%(260)(11.3)%(118)(4.1)%(96)(6.4)%
    Other(27)(0.5)%(1) %1  %2 0.1 %
Changes in valuation allowances7 0.1 %  %  %  %
Foreign tax effects(6)(0.1)%  %  %  %
Unrecognized tax benefits(1) %  %(1) %(1) %
Domestic state and local income taxes, net of federal effect(a)
106 1.8 %47 2.0 %79 2.7 %23 1.5 %
Total$642 11.2 %$194 8.4 %$485 16.7 %$223 14.8 %
 Year Ended December 31, 2025
Duke Energy
Duke Energy
Duke Energy
($ in millions and effective tax rate in percent)
Florida
Ohio
Indiana
Piedmont
U.S. Federal statutory income tax$311 21.0 %$85 21.0 %$127 21.0 %$116 21.0 %
Federal
Tax credits
PTCs (solar)
(64)(4.3)%  %  %  %
Amortization of PTCs (nuclear)
  %  %  %  %
Amortization of ITCs
(1)(0.1)%  %(3)(0.5)%  %
Other(3)(0.2)%(1)(0.2)%(1)(0.2)%(1)(0.2)%
Nontaxable and Nondeductible
    Regulatory Deferrals
AFUDC equity income(4)(0.3)%(3)(0.7)%(6)(1.0)%(4)(0.7)%
AFUDC equity depreciation8 0.5 %4 1.0 %4 0.7 %1 0.2 %
Amortization of EDIT(22)(1.5)%(22)(5.4)%(57)(9.5)%(8)(1.4)%
    Other(3)(0.2)%0 %0(0.1)%0(0.2)%
Changes in valuation allowances  %  %  %  %
Foreign tax effects  %  %  %  %
Unrecognized tax benefits1 0.1 %  %  %  %
Domestic state and local income taxes, net of federal effect(a)
66 4.5 %4 1.0 %19 3.2 %9 1.6 %
Total$289 19.5 %$68 16.7 %$82 13.6 %$112 20.3 %
(a)    Jurisdictions that make up the majority of the registrant's respective domestic state income taxes, net of federal effect, are as follows:
Duke Energy: North Carolina, South Carolina and Florida
Duke Energy Carolinas: North Carolina and South Carolina
Progress Energy: Florida and North Carolina
Duke Energy Progress: North Carolina and South Carolina
Duke Energy Florida: Florida
Duke Energy Ohio: Kentucky
Duke Energy Indiana: Indiana
Piedmont: North Carolina, Tennessee and South Carolina
 Year Ended December 31, 2024
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Income tax expense, computed at the statutory rate of 21%$1,090$443$545$284$279$85$108$107
State income tax, net of federal income tax effect8840 73275831612
Amortization of EDIT
(436)(225)(121)(98)(23)(23)(49)(18)
AFUDC equity income(48)(24)(16)(13)(3)(1)(3)(4)
AFUDC equity depreciation3819147724
Production tax credits
(46)(46)(46)
Other tax credits
(43)(23)(16)(12)(4)(1)(2)(2)
Other items, net(53)(4)(7)(6)(1)(3)
Income tax expense from continuing operations
$590 $226 $426 $189 $268 $64 $71 $95 
Effective tax rate11.4 %10.7 %16.4 %14.0 %20.2 %15.8 %13.9 %18.7 %
 Year Ended December 31, 2023
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Income tax expense, computed at the statutory rate of 21%$1,001$338$490$241$268$83$128$97
State income tax, net of federal income tax effect4312 601856(2)1812
Amortization of EDIT
(388)(197)(114)(91)(23)(22)(33)(20)
AFUDC equity income(41)(19)(14)(11)(3)(2)(2)(4)
AFUDC equity depreciation3718136724
Tax credits(b)
(63)(11)(46)(7)(39)(2)(2)(1)
Interest on company-owned life insurance(a)
(114)
Other items, net(37)(12)(7)(5)6(3)
Income tax expense from continuing operations
$438 $141 $377 $149 $261 $63 $110 $84 
Effective tax rate9.2 %8.8 %16.2 %13.0 %20.4 %15.9 %18.1 %18.1 %
(a)     During 2023, the Company evaluated the deductibility of certain items spanning periods currently open under federal statute, including items related to interest on company-owned life insurance. As a result of this analysis, the Company recorded a favorable federal adjustment of approximately $114 million and a favorable state adjustment of approximately $6 million. The favorable state adjustment is included in State income tax, net of federal income tax effect, in the above table.
(b)    Tax credits at Progress Energy and Duke Energy Florida include $28 million of certain eligible PTCs, net of discount, that were elected to be sold in 2023 under the transferability provisions of the IRA.
Schedule of Deferred Tax Assets and Liabilities
 December 31, 2025
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Deferred credits and other liabilities $254 $217 $82 $49 $33 $23 $15 $21 
Lease obligations 452 86 263 184 79 1 11 1 
Pension, post-retirement and other employee benefits 20     3   
Progress Energy merger purchase accounting adjustments(a)
210        
Tax credits and NOL carryforwards 3,259 595 844 383 452 84 191 58 
Investments and other assets
     2 19  
Other 36 2 4 3 1 4 (1)7 
Valuation allowance (130)(1)      
Total deferred income tax assets 4,101 899 1,193 619 565 117 235 87 
Investments and other assets (2,452)(1,545)(829)(790)(54)  (68)
Pension post-retirement and other employee benefits
 (43)(57)(13)(48) (3)(6)
Accelerated depreciation rates (12,629)(3,219)(5,171)(1,914)(3,301)(1,414)(1,701)(1,072)
Regulatory assets and deferred debits, net (1,397)(283)(712)(544)(167)(44)(56)(12)
Total deferred income tax liabilities (16,478)(5,090)(6,769)(3,261)(3,570)(1,458)(1,760)(1,158)
Net deferred income tax liabilities$(12,377)$(4,191)$(5,576)$(2,642)$(3,005)$(1,341)$(1,525)$(1,071)
(a)    Primarily related to lease obligations and debt fair value adjustments.
 December 31, 2024
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Deferred credits and other liabilities $284 $217 $84 $43 $41 $17 $15 $40 
Lease obligations 430 88 265 179 86 12 
Pension, post-retirement and other employee benefits 89 (33)(23)(1)(26)(2)
Progress Energy merger purchase accounting adjustments(a)
227 — — — — — — — 
Tax credits and NOL carryforwards 3,845 522 783 312 449 70 145 57 
Regulatory liabilities and deferred credits— — — — — — 10 — 
Other 35 11 — 
Valuation allowance (517)— — — — — — — 
Total deferred income tax assets 4,393 805 1,114 536 552 99 183 105 
Investments and other assets (2,114)(1,350)(724)(671)(69)— — (48)
Accelerated depreciation rates (11,942)(3,203)(4,608)(1,624)(3,047)(1,361)(1,677)(1,019)
Regulatory assets and deferred debits, net (1,761)(304)(1,045)(585)(460)(52)— (56)
Total deferred income tax liabilities (15,817)(4,857)(6,377)(2,880)(3,576)(1,413)(1,677)(1,123)
Net deferred income tax liabilities $(11,424)$(4,052)$(5,263)$(2,344)$(3,024)$(1,314)$(1,494)$(1,018)
(a)    Primarily related to lease obligations and debt fair value adjustments.
Summary of Tax Credit Carryforwards
The following table presents the expiration of tax credits and NOL carryforwards.
 December 31, 2025
(in millions)AmountExpiration Year
General Business Credits$1,908 20322045
Foreign Tax Credits(c)
36 20272028
State Carryforwards and Credits(a)
265 2026Indefinite
Corporate AMT Credits1,038 Indefinite
Foreign NOL carryforwards(b)
12 20272045
Total tax credits and NOL carryforwards$3,259    
(a)    A valuation allowance of $83 million has been recorded on the state NOL and attribute carryforwards, as presented in the Net Deferred Income Tax Liability Components table.
(b)    A valuation allowance of $12 million has been recorded on the foreign NOL carryforwards, as presented in the Net Deferred Income Tax Liability Components table.
(c)    A valuation allowance of $36 million has been recorded on the foreign tax credits, as presented in the Net Deferred Income Tax Liability Components table.
Schedule of Income Taxes Paid
The following table presents income taxes paid.
Year Ended December 31, 2025
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Federal
   Internal Revenue Service – payments/(refunds)
58 561 424 211 202 100 182 55 
   Transferrable Credits – purchased/(sold)
(676)(551)(171)(102)(69)   
   Total Federal
(618)10 253 109 133 100 182 55 
State income tax payments/(refunds)
   North Carolina(4)39 7 9     
   South Carolina 36  2     
   Florida  5  34    
   Indiana      26  
Kentucky1     3   
Oklahoma(4)       
   Other
        
   Total State
(7)75 12 11 34 3 26  
Total Income Taxes Paid (net of refunds)
$(625)$85 $265 $120 $167 $103 $208 $55 
Schedule of Unrecognized Tax Benefits Roll Forward
The following tables present changes to unrecognized tax benefits.
 Year Ended December 31, 2025
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Unrecognized tax benefits – January 1$74 $25 $29 $22 $7 $2 $3 $13 
Gross increases – current period tax positions(2) (1)(2)1   (1)
Unrecognized tax benefits – December 31$72 $25 $28 $20 $8 $2 $3 $12 
 Year Ended December 31, 2024
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Unrecognized tax benefits – January 1$62 $21 $24 $18 $$$$11 
Gross increases – current period tax positions12 — — 
Unrecognized tax benefits – December 31$74 $25 $29 $22 $$$$13 
 Year Ended December 31, 2023
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Unrecognized tax benefits – January 1$65 $17 $19 $13 $$$$
Gross decreases – tax positions in prior periods
(15)— — — — — — — 
Gross increases – current period tax positions12 
Total changes(3)
Unrecognized tax benefits – December 31$62 $21 $24 $18 $$$$11 
Summary of Income Tax Contingencies
The following table includes additional information regarding the Duke Energy Registrants' unrecognized tax benefits at December 31, 2025.
 December 31, 2025
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Amount that if recognized, would affect the
effective tax rate or regulatory liability(a)
$67 $24 $26 $18 $8 $2 $3 $11 
(a)    The Duke Energy Registrants are unable to estimate the specific amounts that would affect the ETR versus the regulatory liability.