CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
INTEREST INCOME
Loans, including fees	$ 15,047	$ 11,719	$ 29,285	$ 23,426
Securities:
Taxable	432	504	903	1,089
Tax-exempt	1,176	1,027	2,367	2,037
Dividend income	167	151	275	305
Interest-bearing deposits with banks	18	153	36	358
Total interest income	16,840	13,554	32,866	27,215
INTEREST EXPENSE
Deposits	771	1,625	1,707	3,374
Federal funds purchased and repurchase agreement		1		1
Federal Home Loan Bank borrowings	833	838	1,694	1,646
Federal Reserve PPPLF borrowings	137		290
Other borrowings	319	319	656	637
Total interest expense	2,060	2,783	4,347	5,658
Net interest income	14,780	10,771	28,519	21,557
Provision for loan losses	287	1,705	955	2,210
Net interest income after provision for loan losses	14,493	9,066	27,564	19,347
NONINTEREST INCOME
Service charges on deposit accounts	328	441	724	950
ATM and interchange fees	513	524	1,145	1,027
Net gain on sales of available for sale securities and time deposits		7		7
Net unrealized gain (loss) on equity securities	27	(29)	38	(27)
Net gain on sales of loans, Small Business Administration	3,239	1,229	4,506	1,990
Mortgage banking income	32,398	8,411	74,698	24,334
Increase in cash surrender value of life insurance	174	194	360	356
Commission income	365	83	499	110
Real estate lease income	149	152	296	303
Net gain (loss) on premises and equipment	71	(5)	71	(9)
Other income	1,709	126	2,819	324
Total noninterest income	38,973	11,133	85,156	29,365
NONINTEREST EXPENSE
Compensation and benefits	29,481	14,907	63,343	32,727
Occupancy and equipment	2,514	1,989	5,099	3,911
Data processing	549	546	1,338	1,048
Advertising	2,052	1,777	4,363	3,243
Professional fees	1,595	522	2,869	1,149
FDIC insurance premiums	94	99	234	103
Net (gain) loss on other real estate owned	1	(7)	4	(2)
Other operating expenses	2,998	2,242	6,436	4,168
Total noninterest expense	39,284	22,075	83,686	46,347
Income (Loss) before income taxes	14,182	(1,876)	29,034	2,365
Income tax expense	3,695	(774)	8,222	(136)
Net Income (Loss)	10,487	(1,102)	20,812	2,501
Less: net income (loss) attributable to noncontrolling interests		(475)	402	(311)
Net Income (Loss) Attributable to First Savings Financial Group, Inc.	$ 10,487	$ (627)	$ 20,410	$ 2,812
Net income (loss) per share:
Basic	$ 4.43	$ (0.27)	$ 8.62	$ 1.20
Diluted	$ 4.39	$ (0.26)	$ 8.55	$ 1.18
Weighted average shares outstanding:
Basic	2,369,642	2,355,750	2,368,338	2,348,145
Diluted	2,388,063	2,379,901	2,386,375	2,381,356
Dividends per share	$ 0.18	$ 0.17	$ 0.35	$ 0.33