v3.26.3
Minimum Capital Requirements (Details)
$ in Thousands
Sep. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
FB Financial Corporation    
Total capital (to risk-weighted assets)    
Actual, amount $ 2,041,720 $ 1,888,051
Actual, ratio 0.136 0.132
Minimum requirement for capital adequacy with capital buffer, amount $ 1,577,202 $ 1,496,600
Minimum requirement for capital adequacy with capital buffer, ratio 0.105 0.105
Tier 1 capital (to risk-weighted assets)    
Actual, amount $ 1,645,994 $ 1,625,952
Actual, ratio 0.110 0.114
Minimum requirement for capital adequacy with capital buffer, amount $ 1,276,782 $ 1,211,534
Minimum requirement for capital adequacy with capital buffer, ratio 0.085 0.085
Common equity tier 1 capital (to risk-weighted assets)    
Actual, amount $ 1,645,994 $ 1,625,952
Actual, ratio 0.110 0.114
Minimum requirement for capital adequacy with capital buffer, amount $ 1,051,468 $ 997,734
Minimum requirement for capital adequacy with capital buffer, ratio 0.070 0.070
Tier 1 capital (to average assets)    
Actual, amount $ 1,645,994 $ 1,625,952
Actual, ratio 0.100 0.103
Minimum requirement for capital adequacy with capital buffer, amount $ 657,268 $ 633,378
Minimum requirement for capital adequacy with capital buffer, ratio 0.040 0.040
FirstBank    
Total capital (to risk-weighted assets)    
Actual, amount $ 1,992,455 $ 1,830,102
Actual, ratio 0.133 0.129
Minimum requirement for capital adequacy with capital buffer, amount $ 1,574,939 $ 1,484,360
Minimum requirement for capital adequacy with capital buffer, ratio 0.105 0.105
To qualify as well-capitalized under prompt corrective action provision, amount $ 1,499,942 $ 1,413,676
To qualify as well-capitalized under prompt corrective action provision, ratio 0.100 0.100
Tier 1 capital (to risk-weighted assets)    
Actual, amount $ 1,804,717 $ 1,653,113
Actual, ratio 0.120 0.117
Minimum requirement for capital adequacy with capital buffer, amount $ 1,274,950 $ 1,201,625
Minimum requirement for capital adequacy with capital buffer, ratio 0.085 0.085
To qualify as well-capitalized under prompt corrective action provision, amount $ 1,199,953 $ 1,130,941
To qualify as well-capitalized under prompt corrective action provision, ratio 0.080 0.080
Common equity tier 1 capital (to risk-weighted assets)    
Actual, amount $ 1,804,717 $ 1,653,113
Actual, ratio 0.120 0.117
Minimum requirement for capital adequacy with capital buffer, amount $ 1,049,959 $ 989,573
Minimum requirement for capital adequacy with capital buffer, ratio 0.070 0.070
To qualify as well-capitalized under prompt corrective action provision, amount $ 974,962 $ 918,889
To qualify as well-capitalized under prompt corrective action provision, ratio 0.065 0.065
Tier 1 capital (to average assets)    
Actual, amount $ 1,804,717 $ 1,653,113
Actual, ratio 0.110 0.105
Minimum requirement for capital adequacy with capital buffer, amount $ 655,843 $ 631,928
Minimum requirement for capital adequacy with capital buffer, ratio 0.040 0.040
To qualify as well-capitalized under prompt corrective action provision, amount $ 819,804 $ 789,910
To qualify as well-capitalized under prompt corrective action provision, ratio 0.050 0.050