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Income Taxes
 6 Months Ended
Jun. 30, 2023
Income Taxes INCOME TAXES
The disclosures in this note apply to all Registrants unless indicated otherwise.

Effective Tax Rates (ETR)

The Registrants’ interim ETR reflect the estimated annual ETR for 2023 and 2022, adjusted for tax expense associated with certain discrete items.

The Registrants include the amortization of Excess ADIT not subject to normalization requirements in the annual estimated ETR when regulatory proceedings instruct the Registrants to provide the benefits of Tax Reform to customers over multiple interim periods.  Certain regulatory proceedings instruct the Registrants to provide the benefits of Tax Reform to customers in a single period (e.g. by applying the Excess ADIT not subject to normalization requirements against an existing regulatory asset balance) and in these circumstances, the Registrants recognize the tax benefit discretely in the period recorded. The annual amount of Excess ADIT approved by the Registrant’s regulatory commissions may not impact the ETR ratably during each interim period due to the variability of pretax book income between interim periods and the application of an annual estimated ETR.

The ETR for each of the Registrants are included in the following tables:

Three Months Ended June 30, 2023
AEPAEP TexasAEPTCoAPCoI&MOPCoPSOSWEPCo
U.S. Federal Statutory Rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State Income Tax, net of Federal Benefit
2.1 %0.6 %2.6 %3.2 %0.7 %0.8 %2.0 %(1.6)%
Tax Reform Excess ADIT Reversal
(6.2)%(1.3)%0.1 %(4.5)%(6.1)%(8.5)%(17.2)%(4.2)%
Production and Investment Tax Credits
(9.9)%(0.2)%— %(0.1)%0.1 %— %(55.1)%(29.2)%
Flow Through
(1.0)%0.1 %0.2 %(5.1)%(4.4)%1.2 %0.3 %(0.8)%
AFUDC Equity
(1.2)%(0.9)%(2.1)%(1.5)%(0.1)%(0.7)%(1.4)%— %
Other
0.4 %0.3 %— %(0.4)%0.1 %0.1 %— %0.7 %
Effective Income Tax Rate5.2 %19.6 %21.8 %12.6 %11.3 %13.9 %(50.4)%(14.1)%
Three Months Ended June 30, 2022
AEPAEP TexasAEPTCoAPCoI&MOPCoPSOSWEPCo
U.S. Federal Statutory Rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State Income Tax, net of Federal Benefit
1.3 %0.7 %2.9 %(1.0)%(1.3)%1.0 %3.9 %2.5 %
Tax Reform Excess ADIT Reversal
(7.1)%(2.1)%0.3 %(20.4)%(17.2)%(7.8)%(19.2)%(5.2)%
Production and Investment Tax Credits
(6.1)%(0.6)%— %— %(3.4)%— %(32.2)%(19.8)%
Flow Through
(0.1)%0.2 %0.4 %(1.4)%(1.2)%0.2 %0.3 %— %
AFUDC Equity
(1.1)%(1.4)%(2.3)%(1.5)%(1.3)%(0.7)%(0.4)%(0.5)%
Discrete Tax Adjustments0.3 %— %— %(6.0)%— %— %— %0.8 %
Other
1.1 %0.1 %0.1 %(0.2)%1.3 %0.1 %0.5 %(0.1)%
Effective Income Tax Rate9.3 %17.9 %22.4 %(9.5)%(2.1)%13.8 %(26.1)%(1.3)%
Six Months Ended June 30, 2023
AEPAEP TexasAEPTCoAPCoI&MOPCoPSOSWEPCo
U.S. Federal Statutory Rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State Income Tax, net of Federal Benefit
2.0 %0.5 %2.6 %2.6 %2.4 %0.9 %2.0 %(1.2)%
Tax Reform Excess ADIT Reversal
(6.2)%(1.4)%0.2 %(4.5)%(7.2)%(7.6)%(17.1)%(4.0)%
Production and Investment Tax Credits
(9.8)%(0.2)%— %(0.1)%(0.6)%— %(55.2)%(28.2)%
Flow Through
(0.5)%0.2 %0.2 %(0.8)%(2.9)%0.8 %0.3 %(0.3)%
AFUDC Equity
(1.3)%(1.1)%(1.8)%(0.9)%(0.3)%(0.8)%(1.4)%(0.3)%
Discrete Tax Adjustments
(1.4)%— %— %2.4 %1.0 %— %— %— %
Other
0.3 %0.2 %— %(0.1)%0.1 %0.1 %0.1 %0.1 %
Effective Income Tax Rate4.1 %19.2 %22.2 %19.6 %13.5 %14.4 %(50.3)%(12.9)%
Six Months Ended June 30, 2022
AEPAEP TexasAEPTCoAPCoI&MOPCoPSOSWEPCo
U.S. Federal Statutory Rate21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State Income Tax, net of Federal Benefit
1.4 %0.5 %2.7 %1.5 %0.4 %0.9 %3.5 %2.4 %
Tax Reform Excess ADIT Reversal
(6.8)%(2.0)%0.3 %(11.0)%(17.2)%(7.8)%(18.6)%(5.1)%
Production and Investment Tax Credits
(7.1)%(0.4)%— %— %(2.3)%— %(31.4)%(20.8)%
Flow Through
0.1 %0.2 %0.3 %0.6 %(1.6)%0.6 %0.3 %(0.2)%
AFUDC Equity
(1.0)%(1.1)%(1.9)%(1.0)%(0.9)%(0.6)%(0.5)%(0.5)%
Discrete Tax Adjustments(0.2)%— %— %(2.6)%— %— %— %0.5 %
Other
0.5 %(0.1)%0.2 %— %0.4 %(0.1)%0.3 %— %
Effective Income Tax Rate7.9 %18.1 %22.6 %8.5 %(0.2)%14.0 %(25.4)%(2.7)%

Federal and State Income Tax Audit Status

The statute of limitations for the IRS to examine AEP and subsidiaries originally filed federal return has expired for tax years 2016 and earlier. AEP has agreed to extend the statute of limitations on the 2017-2019 tax returns to October 31, 2024, to allow time for the current IRS audit to be completed including a refund claim approval by the Congressional Joint Committee on Taxation. The statute of limitations for the 2020 return is set to naturally expire in October 2024 as well.

The current IRS audit and associated refund claim evolved from a net operating loss carryback to 2015 that originated in the 2017 return. AEP has received and agreed to two IRS proposed adjustments on the 2017 tax return, which were immaterial. The exam is nearly complete, and AEP is currently working with the IRS to submit the refund claim to the Congressional Joint Committee on Taxation for resolution and final approval.

AEP and subsidiaries file income tax returns in various state and local jurisdictions. These taxing authorities routinely examine the tax returns, and AEP and subsidiaries are currently under examination in several state and local jurisdictions. Generally, the statutes of limitations have expired for tax years prior to 2017. In addition, management is monitoring and continues to evaluate the potential impact of federal legislation and corresponding state conformity.
Federal Legislation

In August 2022, President Biden signed H.R. 5376 into law, commonly known as the Inflation Reduction Act of 2022 or IRA. Most notably this budget reconciliation legislation creates a 15% minimum tax on adjusted financial statement income (Corporate Alternative Minimum Tax or CAMT), extends and increases the value of PTCs and ITCs, adds a nuclear and clean hydrogen PTC, an energy storage ITC and allows the sale or transfer of tax credits to third parties for cash. As further significant guidance from Treasury and the IRS is expected on the tax provisions in the IRA, AEP will continue to monitor any issued guidance and evaluate the impact on future net income, cash flows and financial condition.

In December 2022, the IRS released Notice 2023-7 addressing time sensitive issues related to the CAMT. The notice provided initial guidance that AEP can begin to rely on in 2023 and also stated that additional guidance is expected, of which AEP will continue to monitor and assess. Notably, the interim guidance in Notice 2023-7 confirmed the CAMT depreciation adjustment includes tax depreciation that is capitalized to inventory under §263A and recovered as part of cost of goods sold, providing significant relief to AEP’s potential CAMT exposure.

AEP and subsidiaries expect to be applicable corporations for purposes of the CAMT beginning in 2023. CAMT cash taxes are expected to be partially offset by regulatory recovery, the utilization of tax credits and additionally the cash inflow generated by the sale of tax credits. The sale of tax credits will be presented in the operating section of the statements of cash flows consistent with the presentation of cash taxes paid. AEP will present the gain or loss on sale of tax credits through income tax expense.
In June 2023, the IRS issued temporary regulations related to the transfer of tax credits. AEP and subsidiaries have qualifying tax credits that are eligible to be transferred and, depending on market conditions, will consider selling qualifying tax credits in the second half of 2023.