Minimum Capital Requirements (Tables)

9 Months Ended

Sep. 30, 2023

Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]

Schedule of Actual and Required Capital Amounts and Ratios

Actual and required capital amounts and ratios are included below as of the dates indicated.

September 30, 2023	Actual				Minimum Capital Adequacy with Capital Buffer				To be Well-Capitalized
	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total Capital (to risk-weighted assets)
FB Financial Corporation	$	1,608,166	14.1	%	$	1,197,701	10.5	%	N/A		N/A
FirstBank	1,574,078		13.8	%	1,195,510		10.5	%	$	1,138,581	10.0	%
Tier 1 Capital (to risk-weighted assets)
FB Financial Corporation	$	1,380,228	12.1	%	$	969,568	8.5	%	N/A		N/A
FirstBank	1,346,139		11.8	%	967,793		8.5	%	$	910,864	8.0	%
Tier 1 Capital (to average assets)
FB Financial Corporation	$	1,380,228	11.0	%	$	500,573	4.0	%	N/A		N/A
FirstBank	1,346,139		10.8	%	499,962		4.0	%	$	624,952	5.0	%
Common Equity Tier 1 Capital (to risk-weighted assets)
FB Financial Corporation	$	1,350,228	11.8	%	$	798,468	7.0	%	N/A		N/A
FirstBank	1,346,139		11.8	%	797,006		7.0	%	$	740,077	6.5	%

December 31, 2022	Actual				Minimum Capital Adequacy with Capital Buffer				To be Well-Capitalized
	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total Capital (to risk-weighted assets)
FB Financial Corporation	$	1,528,344	13.1	%	$	1,225,161	10.5	%	N/A		N/A
FirstBank	1,506,543		12.9	%	1,222,922		10.5	%	$	1,164,688	10.0	%
Tier 1 Capital (to risk-weighted assets)
FB Financial Corporation	$	1,315,386	11.3	%	$	991,797	8.5	%	N/A		N/A
FirstBank	1,293,585		11.1	%	989,985		8.5	%	$	931,750	8.0	%
Tier 1 Capital (to average assets)
FB Financial Corporation	$	1,315,386	10.5	%	$	499,648	4.0	%	N/A		N/A
FirstBank	1,293,585		10.4	%	499,194		4.0	%	$	623,992	5.0	%
Common Equity Tier 1 Capital (to risk-weighted assets)
FB Financial Corporation	$	1,285,386	11.0	%	$	816,774	7.0	%	N/A		N/A
FirstBank	1,293,585		11.1	%	815,281		7.0	%	$	757,047	6.5	%