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INCOME TAXES (Tables)
9 Months Ended
Jun. 30, 2019
Income Tax Disclosure [Abstract]  
Schedule of Effective Income Tax Rate Reconciliation The Company’s effective tax rate in the future will depend in part on actual investment tax credits earned as part of its financing of solar energy projects.

The table below compares the income tax expense components for the periods presented.
Nine Months Ended June 30,
2019
 
2018
(Dollars in Thousands)
 
 
 
Provision at statutory rate
$
15,449

 
$
13,639

Tax-exempt income
(2,360
)
 
(5,506
)
State income taxes
3,243

 
2,314

Interim period effective rate adjustment
1,397

 
(1,070
)
Tax credit investments, net - federal
(22,484
)
 

Tax Reform rate adjustment

 
3,635

IRC 162(m) nondeductible compensation
1,612

 

Other, net
(101
)
 
(304
)
Income tax expense
$
(3,244
)
 
$
12,708

Effective tax rate
(4.2
%)
 
22.9
%