Income Taxes (Tables)

3 Months Ended

Mar. 31, 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	To be addressed in a later filing	To be addressed in a later filing
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
PJM FERC Transmission	Settlement Approved (c)	Settlement Approved (c)	Settlement Approved (c)
SPP FERC Transmission	Settlement Pending	Settlement Pending	Settlement Pending

(a) A portion of the Excess ADIT that is not subject to rate normalization requirements is to be addressed in a later filing.

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

(c)

An ALJ has approved a settlement. The settlement is subject to final FERC ruling.

Schedule of Effective Income Tax Rate Reconciliation

	Three Months Ended  March 31,
Company	2019		2018
AEP	7.2	%	18.3	%
AEP Texas	10.4	%	16.3	%
AEPTCo	20.9	%	20.7	%
APCo	(22.0	)%	18.2	%
I&M	(2.8	)%	16.2	%
OPCo	13.4	%	20.5	%
PSO	0.6	%	16.3	%
SWEPCo	2.4	%	18.4	%