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INCOME TAXES (Tables)
6 Months Ended
Mar. 31, 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.
Six Months Ended March 31,
2019
 
2018
(Dollars in Thousands)
 
 
 
Provision at statutory rate
$
9,541

 
$
11,857

Tax-exempt income
(1,824
)
 
(3,728
)
State income taxes
2,143

 
2,003

Interim period effective rate adjustment
(3,968
)
 
(1,277
)
Tax credit investments, net - federal
(9,568
)
 

Tax Reform rate adjustment

 
3,635

IRC 162(m) nondeductible compensation
1,561

 

Other, net
29

 
(258
)
Income tax expense
$
(2,086
)
 
$
12,232

Effective tax rate
(4.40
%)
 
25.31
%