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Capital Ratios (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024 | Jan. 01, 2019
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Regulatory Matters |  |  |
Minimum capital required, Capital Amount | $ 3,539,232 | $ 2,522,926 |
Capital conversion buffer common equity Tier 1 of risk-weighted assets (as a percent) |  |  | 2.50%
Additional reserve for unfunded commitments | 64,700 |  |
Retained earnings | 2,240,470 | 2,046,809 |
Common equity Tier 1 to risk-weighted assets |  |  |
Actual, Capital Amount | $ 5,669,247 | $ 4,547,314 |
Actual, Ratio (as a percent) | 11.21% | 12.62% |
Minimum capital required, Capital Amount | $ 4,297,638 | $ 3,063,552 |
Minimum capital required, Ratio (as a percent) | 0.07% | 7.00% |
Required to be considered well capitalized, Capital Amount | $ 3,286,429 | $ 2,342,717 |
Required to be considered well capitalized, Ratio (as a percent) | 0.065% | 0.065% |
Tier I capital to risk-weighted assets |  |  |
Actual, Capital Amount | $ 5,669,247 | $ 4,547,314 |
Actual, Ratio (as a percent) | 0.1121 | 0.1262 |
Minimum capital required, Capital Amount | $ 4,297,638 | $ 3,063,552 |
Minimum capital required, Ratio (as a percent) | 0.085 | 0.085 |
Required to be considered well capitalized, Capital Amount | $ 4,044,836 | $ 2,883,343 |
Required to be considered well capitalized, Ratio (as a percent) | 0.08 | 0.08 |
Total capital to risk-weighted assets |  |  |
Actual, Capital Amount | $ 7,329,555 | $ 5,391,194 |
Actual, Ratio (as a percent) | 0.145 | 0.1496 |
Minimum capital required, Capital Amount | $ 5,308,847 | $ 3,784,388 |
Minimum capital required, Ratio (as a percent) | 0.105 | 0.105 |
Required to be considered well capitalized, Capital Amount | $ 5,056,045 | $ 3,604,179 |
Required to be considered well capitalized, Ratio (as a percent) | 0.10 | 0.10 |
Tier I capital to average assets (leverage ratio) |  |  |
Actual, Capital Amount | $ 5,669,247 | $ 4,547,314 |
Actual, Ratio (as a percent) | 0.0921 | 0.1004 |
Minimum capital required, Capital Amount | $ 2,462,611 | $ 1,810,985 |
Minimum capital required, Ratio (as a percent) | 0.04 | 0.04 |
Required to be considered well capitalized, Capital Amount | $ 3,078,264 | $ 2,263,732 |
Required to be considered well capitalized, Ratio (as a percent) | 0.05 | 0.05 |
SouthState Bank (the Bank) |  |  |
Regulatory Matters |  |  |
Minimum capital required, Capital Amount | $ 3,535,258 | $ 2,520,065 |
Common equity Tier 1 to risk-weighted assets |  |  |
Actual, Capital Amount | $ 6,252,052 | $ 4,817,945 |
Actual, Ratio (as a percent) | 12.38% | 13.38% |
Minimum capital required, Capital Amount | $ 4,292,813 | $ 3,060,079 |
Minimum capital required, Ratio (as a percent) | 0.07% | 7.00% |
Required to be considered well capitalized, Capital Amount | $ 3,282,740 | $ 2,340,060 |
Required to be considered well capitalized, Ratio (as a percent) | 0.065% | 0.065% |
Tier I capital to risk-weighted assets |  |  |
Actual, Capital Amount | $ 6,252,052 | $ 4,817,945 |
Actual, Ratio (as a percent) | 0.1238 | 0.1338 |
Minimum capital required, Capital Amount | $ 4,292,813 | $ 3,060,079 |
Minimum capital required, Ratio (as a percent) | 0.085 | 0.085 |
Required to be considered well capitalized, Capital Amount | $ 4,040,295 | $ 2,880,074 |
Required to be considered well capitalized, Ratio (as a percent) | 0.08 | 0.08 |
Total capital to risk-weighted assets |  |  |
Actual, Capital Amount | $ 6,851,759 | $ 5,271,725 |
Actual, Ratio (as a percent) | 0.1357 | 0.1464 |
Minimum capital required, Capital Amount | $ 5,302,887 | $ 3,780,097 |
Minimum capital required, Ratio (as a percent) | 0.105 | 0.105 |
Required to be considered well capitalized, Capital Amount | $ 5,050,369 | $ 3,600,093 |
Required to be considered well capitalized, Ratio (as a percent) | 0.10 | 0.10 |
Tier I capital to average assets (leverage ratio) |  |  |
Actual, Capital Amount | $ 6,252,052 | $ 4,817,945 |
Actual, Ratio (as a percent) | 0.1016 | 0.1064 |
Minimum capital required, Capital Amount | $ 2,461,627 | $ 1,810,497 |
Minimum capital required, Ratio (as a percent) | 0.04 | 0.04 |
Required to be considered well capitalized, Capital Amount | $ 3,077,034 | $ 2,263,121 |
Required to be considered well capitalized, Ratio (as a percent) | 0.05 | 0.05 |
Minimum |  |  |
Common equity Tier 1 to risk-weighted assets |  |  |
Actual, Ratio (as a percent) | 4.50% |  |
Tier I capital to risk-weighted assets |  |  |
Minimum capital required, Ratio (as a percent) | 0.06 |  |
Total capital to risk-weighted assets |  |  |
Actual, Ratio (as a percent) | 0.04 |  |
Tier I capital to average assets (leverage ratio) |  |  |
Actual, Ratio (as a percent) | 0.08 |  |

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