Income Taxes (Tables)

9 Months Ended

Sep. 30, 2019

Status of Tax Reform Regulatory Proceedings

Registrant (Jurisdiction)	Change in Tax Rate	Excess ADIT Subject to Normalization Requirements	Excess ADIT Not Subject to Normalization Requirements
AEP Texas (Texas-Distribution)	Order Issued	Order Issued	Order Issued – Partial (a)
AEP Texas (Texas-Transmission)	Order Issued	Case Pending	Case Pending
I&M (Michigan)	Order Issued	Case Pending	Case Pending
SWEPCo (Louisiana)	Case Pending – Rates Implemented (b)	Case Pending – Rates Implemented (b)	Case Pending – Rates Implemented (b)
SWEPCo (Texas)	Order Issued	To be addressed in a later filing	To be addressed in a later filing

(a) A portion of the Excess ADIT that is not subject to rate normalization requirements is addressed in a current pending case.

(b)

Rates have been implemented through a filed formula rate plan that is subject to true-up and final commission approval.

Schedule of Effective Income Tax Rate Reconciliation

	Three Months Ended September 30,				Nine Months Ended September 30,
Company	2019		2018		2019		2018
AEP	5.2	%	(16.2	)%	1.7	%	5.6	%
AEP Texas	15.1	%	12.6	%	(25.3	)%	14.9	%
AEPTCo	21.9	%	18.4	%	20.7	%	20.7	%
APCo	(3.9	)%	(962.2	)%	(19.1	)%	(13.8	)%
I&M	(2.7	)%	15.9	%	(2.1	)%	10.4	%
OPCo	13.9	%	(46.4	)%	14.2	%	4.6	%
PSO	6.4	%	5.6	%	4.6	%	8.7	%
SWEPCo	(0.6	)%	9.8	%	—	%	11.4	%