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v3.22.1

Significant accounting policies (Tables) | 12 Months Ended
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Dec. 31, 2021
Disclosure of detailed information about business combination [line items] |
Schedule Of Share Of Capital By Subsidiary | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | At Inter Platform Level(*) | ​ | At Banco Inter Level(*) |
​ | ​ | Share in the capital (%) | ​ | ​ |
Entity | ​ | Branch of Activity | ​ | 12/31/2021 | ​ | 12/31/2020 |
Direct subsidiary |  |  |  |  |  |  | ​
Inter Holding Financeira S.A. |  | Holding Company |  | 100.0 | % | 0.0 | %
Indirect subsidiaries |  |  |  |  |  |  | ​
Banco Inter S.A. |  | Bank |  | 31.4 | % | 0.0 | %
Inter Distribuidora de Títulos e Valores Mobiliários Ltda. |  | TVM Distributor |  | 30.9 | % | 98.3 | %
Inter Digital Corretora e Consultoria de Seguros Ltda. |  | Insurance broker |  | 18.8 | % | 60.0 | %
Inter Marketplace Ltda. |  | Marketplace |  | 31.4 | % | 99.9 | %
Inter Asset Holding S.A. |  | Asset management |  | 22.0 | % | 70.0 | %
Inter Titulos Fundo de Investimento |  | Investment Fund |  | 30.7 | % | 96.5 | %
BMA Inter Fundo De Investimento Em Direitos Creditórios Multissetorial |  | Investment Fund |  | 28.3 | % | 81.2 | %
TBI Fundo De Investimento Renda Fixa Credito Privado |  | Investment Fund |  | 31.4 | % | 100.0 | %
TBI Fundo De Investimento Crédito Privado Investimento Exterior |  | Investment Fund |  | 31.4 | % | 0.0 | %
IM Designs Desenvolvimento de Software Ltda. |  | Provision services |  | 15.7 | % | 0.0 | %
Acerto Cobrança e Informações Cadastrais S.A. |  | Provision services |  | 18.9 | % | 0.0 | %
Inter Asset Gestão de Recursos Ltda |  | Asset management |  | 22.0 | % | 0.0 | %
Inter Café Ltda. |  | Provision services |  | 31.4 | % | 0.0 | %
Inter Boutiques Ltda. |  | Provision services |  | 31.4 | % | 0.0 | %
Inter Food Ltda. |  | Provision services |  | 22 | % | 70 | %
(*)Variations on the percentages presented above are related to the reorganization stated in Note 1. Interest in share capital presented as of December 31, 2020 consider Banco Inter level as the parent company, while Interest in share capital presented as of December 31, 2021 considers InterPlatform as the parent company .
Schedule Of Selected Financial Information By Subsidiary | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Assets | ​ | Liabilities | ​ | Equity | ​ | Ohter comprehensive income | ​ | Revenue | ​ | Profit/ loss year |  | Dividends paids
​ | ​ | 12/31/2021 | ​ | 12/31/2020 | ​ | 12/31/2019 | ​ | 12/31/2021 | ​ | 12/31/2020 | ​ | 12/31/2019 | ​ | 12/31/2021 | ​ | 12/31/2020 | ​ | 12/31/2019 | ​ | 12/31/2021 | ​ | 12/31/2020 | ​ | 12/31/2019 | ​ | 2021 | ​ | 2020 | ​ | 2019 | ​ | 2021 | ​ | 2020 | ​ | 2019 |  | 12/31/2021 | ​ | 12/31/2020 | ​ | 12/31/2019
Direct subsidiary |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ | ​ | ​ |  | ​ |  | ​
Inter Holding Financeira S.A. |  | 2,670,530 |  | — |  | — |  | 14,405 |  | — |  | — |  | 2,656,124 |  | — |  | — |  | ​ |  | — |  | — |  | 19,626 |  | — |  | — |  | (6,069) |  | — |  | — | ​ | — |  | — |  | —
Indirect subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ​ |  |  |  |  |
Banco Inter S.A. |  | 36,433,640 |  | 19,766,642 |  | 10,062,373 |  | 27,945,001 |  | 16,463,954 |  | 7,861,356 |  | 8,488,640 |  | 3,302,688 |  | 2,201,017 |  | (212,195) |  | 37,056 |  | 1,562 |  | 3,208,747 |  | 1,471,926 |  | 1,102,869 |  | 34,625 |  | (7,197) |  | 78,881 | ​ | (41,491) |  | (39,949) |  | (51,252)
Inter Distribuidora de Títulos e Valores Mobiliários Ltda. |  | 368,212 |  | 75,900 |  | 43,317 |  | 317,647 |  | 46,595 |  | 11,725 |  | 50,565 |  | 29,303 |  | 31,592 |  | — |  | — |  | — |  | 87,936 |  | 36,894 |  | 21,904 |  | 21,222 |  | (2,254) |  | 7,196 | ​ | — |  | — |  | —
Inter Digital Corretora e Consultoria de Seguros Ltda. |  | 124,671 |  | 81,289 |  | 11,095 |  | 69,890 |  | 45,773 |  | 4,814 |  | 54,781 |  | 35,516 |  | 6,281 |  | — |  | — |  | — |  | 88,846 |  | 43,215 |  | 20,940 |  | 64,761 |  | 29,235 |  | 11,527 | ​ | (35,647) |  | — |  | —
Inter Marketplace Ltda. |  | 231,051 |  | 69,383 |  | 4,885 |  | 90,756 |  | 47,957 |  | 14 |  | 140,295 |  | 21,426 |  | 4,871 |  | — |  | — |  | — |  | 235,551 |  | 63,998 |  | 15 |  | 118,550 |  | 16,555 |  | (130) | ​ | — |  | — |  | —
Inter Asset Holding S.A. |  | 7,148 |  | 5,829 |  | 4,980 |  | 3,098 |  | 2,418 |  | 118 |  | 4,050 |  | 3,411 |  | 4,862 |  | — |  | — |  | — |  | 8,835 |  | 5,457 |  | 10,331 |  | 6,833 |  | 3,763 |  | (139) | ​ | — |  | — |  | —
Inter Titulos Fundo de Investimento |  | 50,195 |  | 49,870 |  | 56,198 |  | 304 |  | 156 |  | 792 |  | 49,891 |  | 49,714 |  | 55,406 |  | — |  | — |  | — |  | 21,786 |  | 24,164 |  | 11,250 |  | 2,557 |  | (5,136) |  | 5,405 | ​ | — |  | — |  | —
BMA Inter Fundo De Investimento Em Direitos Creditórios Multissetorial |  | 389,497 |  | 170,653 |  | — |  | 1,339 |  | 1,169 |  | — |  | 388,158 |  | 169,484 |  | — |  | — |  | — |  | — |  | 42,561 |  | 7,722 |  | — |  | 32,688 |  | 5,999 |  | — | ​ | — |  | — |  | —
TBI Fundo De Investimento Renda Fixa Credito Privado |  | 443,843 |  | 204,835 |  | — |  | 154 |  | 3,239 |  | — |  | 443,689 |  | 201,596 |  | — |  | — |  | — |  | — |  | 125,238 |  | 7,360 |  | — |  | 21,508 |  | 696 |  | — | ​ | — |  | — |  | —
TBI Fundo De Investimento Crédito Privado Investimento Exterior |  | 14,725 |  | — |  | — |  | 63 |  | — |  | — |  | 14,662 |  | — |  | — |  | — |  | — |  | — |  | 325 |  | — |  | — |  | (337) |  | — |  | — | ​ | — |  | — |  | —
IM Designs Desenvolvimento de Software Ltda. |  | 6,145 |  | — |  | — |  | 573 |  | — |  | — |  | 5,572 |  | — |  | — |  | — |  | — |  | — |  | 3,777 |  | — |  | — |  | (125) |  | — |  | — | ​ | — |  | — |  | —
Acerto Cobrança e Informações Cadastrais S.A. |  | 18,862 |  | — |  | — |  | 1,815 |  | — |  | — |  | 17,047 |  | — |  | — |  | — |  | — |  | — |  | 10,220 |  | — |  | — |  | (4,025) |  | — |  | — | ​ | — |  | — |  | —
Inter Asset Gestão de Recursos Ltda |  | 7,128 |  | — |  | — |  | 3,097 |  | — |  | — |  | 4,031 |  | — |  | — |  | — |  | — |  | — |  | 14,131 |  | 12,748 |  | — |  | 8,182 |  | — |  | — | ​ | — |  | — |  | —
Inter Café Ltda. |  | 553 |  | — |  | — |  | 1,187 |  | — |  | — |  | (634) |  | — |  | — |  | — |  | — |  | — |  | 2,080 |  | — |  | — |  | (702) |  | — |  | — | ​ | — |  | — |  | —
Inter Boutiques Ltda. | ​ | 2,198 | ​ | — | ​ | — | ​ | 1,822 | ​ | — | ​ | — | ​ | 377 | ​ | — | ​ | — | ​ | — | ​ | — | ​ | — | ​ | 2,202 | ​ | — | ​ | — | ​ | 599 | ​ | — | ​ | — | ​ | — | ​ | — | ​ | —
Inter Food Ltda. | ​ | 2,729 | ​ | — | ​ | — | ​ | 333 | ​ | — | ​ | — | ​ | 2,396 | ​ | — | ​ | — | ​ | — | ​ | — | ​ | — | ​ | 2,266 | ​ | — | ​ | — | ​ | 398 | ​ | — | ​ | — | ​ | — | ​ | — | ​ | —
Schedule Of Useful Lives Of Property And Equipment | ​
​ | ​ | ​ | ​
Description |  | Estimated useful lives |
Buildings, furniture and equipment | ​ | 10 years | ​
Data Processing system | ​ | 5 years | ​
Schedule Of Intangible Assets Useful Lives | ​
​ | ​ | ​
Customer relationships |  | 5 years
Internally developed software | ​ | 3 to 5 years
Meu Acerto |
Disclosure of detailed information about business combination [line items] |
Schedule Of Identifiable Assets Acquired And Liabilities Assumed In Business Combination | ​
​ | ​ | ​
Financial instruments |  | 20,212
Other financial assets |  | 2,257
Property and equipment |  | 499
Intangible |  | 13,208
Loan and onlending liabilities |  | (1,455)
Other liabilities |  | (1,977)
Total identifiable net assets acquired |  | 32,755
Schedule Of Goodwill Resulting From Acquisition | ​
​ | ​ | ​
Consideration transferred |  | 45,000
Interest of non-controlling shareholders, based on the pro-rata interest on the assets acquired and liabilities assumed |  | 13,053
Net assets |  | (32,755)
Goodwill |  | 25,298
Inter Asset Holding S.A. |
Disclosure of detailed information about business combination [line items] |
Schedule Of Identifiable Assets Acquired And Liabilities Assumed In Business Combination | ​
​ | ​ | ​
Cash and cash equivalents |  | 2,021
Trade receivables |  | 1,628
Other assets |  | 1,040
Property and equipment |  | 508
Liabilities |  | (2,008)
Customer Relationships |  | 13,344
Total identifiable net assets acquired |  | 16,533
Schedule Of Goodwill Resulting From Acquisition | ​
​ | ​ | ​
Consideration transferred |  | 49,000
Non-controlling interest (NCI), based on their proportionate interest in the recognised amounts of the assets and liabilities of Inter Asset Holding |  | 4,960
Identifiable Net assets |  | (16,533)
Goodwill |  | 37,427

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