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Investments in associates and joint ventures (Details 2) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Notes and other explanatory information [abstract] |  |  |
Jointly Controlled by Banco Santander | R$ 134,304 | R$ 91,247 | R$ 60,813
Banco RCI Brasil S.A. | 138,067 | 95,674 | 66,229
Núclea S.A. |  |  |
Estruturadora Brasileira de Projetos S.A. - EBP | 41 | (8) | 20
Gestora de Inteligência de Crédito | (3,804) | (4,419) | (5,436)
Jointly Controlled by Santander Corretora de Seguros | 1,197 | 700 | 353
Webmotors S.A. |  |  |
Hyundai Corretora de Seguros | 1,197 | 700 | 353
Significant Influence of Banco Santander | 253,276 | 184,987 | 128,414
Núclea S.A. | 111,109 | 106,160 | 109,223
Pluxee Benefícios Brasil S.A. | 110,797 | 53,039 |
Santander Auto S.A. | 36,489 | 25,788 | 19,191
FIDC Creditórios Multisegmentos NPL Ipanema X Responsabilidade Limitada | (5,119) |  |
Significant Influence of Santander Corretora de Seguros | 69,536 | 36,052 | 49,656
Tecnologia Bancária S.A. - TECBAN | 1,633 | 2,868 | 2,435
PSA Corretora de Seguros e Serviços Ltda. |  |  | 1,925
CSD Central de Serviços de Registro e Depósito aos Mercados Financeiro e de Capitais S.A | 6,294 | (1,538) | 2
BIOMAS – Serviços Ambientais, Restauração e Carbono S.A. | (6,476) | (5,663) | (1,415)
Webmotors S.A. | 68,085 | 40,385 | 46,709
Total | R$ 458,313 | R$ 312,986 | R$ 239,236

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