Income Taxes (Tables)

3 Months Ended

Mar. 31, 2020

Schedule of Effective Income Tax Rate Reconciliation

	Three Months Ended March 31, 2020
	AEP		AEP Texas		AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
U.S. Federal Statutory Rate	21.0	%	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	2.5	%	1.5	%	2.9	%	3.0	%	3.2	%	0.7	%	4.6	%	2.7	%
Tax Reform Excess ADIT Reversal	(9.4	)%	(6.2	)%	0.4	%	(13.0	)%	(19.6	)%	(10.2	)%	(23.1	)%	(94.7	)%
Production and Investment Tax Credits	(4.3	)%	(0.4	)%	—	%	—	%	(1.9	)%	—	%	(1.3	)%	(0.5	)%
Flow Through	0.5	%	0.1	%	0.5	%	1.5	%	0.2	%	1.0	%	0.6	%	(1.0	)%
AFUDC Equity	(1.4	)%	(2.6	)%	(2.6	)%	(1.0	)%	(1.1	)%	(1.0	)%	(0.7	)%	(0.4	)%
Parent Company Loss Benefit	—	%	(0.2	)%	(0.9	)%	(3.3	)%	(3.9	)%	(0.1	)%	(2.2	)%	(2.4	)%
Discrete Tax Adjustments	—	%	—	%	—	%	—	%	2.7	%	—	%	—	%	—	%
Other	(0.4	)%	0.3	%	—	%	0.1	%	(0.2	)%	—	%	0.1	%	7.2	%
Effective Income Tax Rate	8.5	%	13.5	%	21.3	%	8.3	%	0.4	%	11.4	%	(1.0	)%	(68.1	)%

	Three Months Ended March 31, 2019
	AEP		AEP Texas		AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
U.S. Federal Statutory Rate	21.0	%	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	%	1.5	%	2.9	%	3.4	%	2.0	%	0.9	%	4.6	%	0.2	%
Tax Reform Excess ADIT Reversal	(13.6	)%	(7.6	)%	0.4	%	(42.2	)%	(17.4	)%	(7.6	)%	(21.9	)%	(17.0	)%
Production and Investment Tax Credits	(2.2	)%	(1.0	)%	—	%	—	%	(2.0	)%	—	%	(1.7	)%	(0.8	)%
Flow Through	(0.2	)%	0.3	%	0.2	%	(0.9	)%	(2.4	)%	0.7	%	0.6	%	(0.9	)%
AFUDC Equity	(1.4	)%	(1.6	)%	(2.5	)%	(1.0	)%	(1.9	)%	(0.7	)%	(0.4	)%	(1.1	)%
Parent Company Loss	—	%	(2.3	)%	(1.0	)%	(2.4	)%	(1.8	)%	(1.1	)%	(1.8	)%	(0.5	)%
Discrete Tax Adjustments	1.7	%	—	%	—	%	0.4	%	—	%	—	%	—	%	—	%
Other	(0.2	)%	0.1	%	(0.1	)%	(0.3	)%	(0.3	)%	0.2	%	0.2	%	1.5	%
Effective Income Tax Rate	7.2	%	10.4	%	20.9	%	(22.0	)%	(2.8	)%	13.4	%	0.6	%	2.4	%