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Administrative Expenses (Details) - Schedule of administrative expenses - CLP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
General administrative expenses |  |  |  |
Information technology and communications |  | $ 109,026 | $ 99,763 | $ 92,264
Maintenance and repair of property and equipment |  | 42,106 | 48,218 | 50,297
External advisory services and professional services fees |  | 18,274 | 14,650 | 21,099
Surveillance and securities transport services |  | 13,229 | 10,787 | 11,533
Office supplies |  | 8,093 | 11,094 | 9,366
Insurance premiums |  | 7,621 | 8,273 | 5,851
External service of financial information |  | 6,297 | 5,912 | 5,461
Postal box, mail, postage and home delivery services |  | 4,718 | 4,218 | 5,131
Energy, heating and other utilities |  | 4,445 | 5,556 | 5,697
Legal and notary expenses |  | 4,432 | 4,182 | 3,996
Expenses for short-term leases and low value |  | 3,825 | 4,729 | 5,801
Donations |  | 3,199 | 2,818 | 2,238
External service of custody of documentation |  | 3,094 | 3,359 | 3,315
Other expenses of obligations for lease agreements |  | 3,070 | 2,684 | 2,797
Representation and travel expenses |  | 2,703 | 2,780 | 3,657
Other general administrative expenses |  | 3,538 | 4,495 | 5,227
Subtotal |  | 237,670 | 233,518 | 233,730
Outsource services |  |  |  |
External technological developments expenses |  | 10,164 | 11,371 | 9,459
Data processing |  | 9,407 | 9,333 | 10,129
Certification and technology testing |  | 7,362 | 6,062 | 7,460
Credit pre-evaluation |  | 4,958 | 12,241 | 19,159
Other |  | 1,468 | 2,435 | 3,470
Subtotal |  | 33,359 | 41,442 | 49,677
Board expenses |  |  |  |
Board of Directors Compensation | [1] | 2,889 | 2,795 | 2,509
Other Board expenses |  | 10 | 30 | 194
Subtotal |  | 2,899 | 2,825 | 2,703
Marketing expenses |  |  |  |
Advertising |  | 30,652 | 23,561 | 27,808
Subtotal |  | 30,652 | 23,561 | 27,808
Taxes, payroll taxes and contributions |  |  |  |
Contribution to the banking regulator |  | 11,968 | 11,408 | 10,285
Real estate contributions |  | 4,852 | 4,054 | 2,856
Patents |  | 1,440 | 1,284 | 1,209
Other taxes |  | 1,785 | 789 | 1,437
Subtotal |  | 20,045 | 17,535 | 15,787
Total |  | $ 324,625 | $ 318,881 | $ 329,705
[1] | It includes fees paid to members of the Advisory Committee of Banchile Corredores de Seguros Ltda, of Ch$14 million (Ch$14 million in December 2020 and Ch$13 million in December 2019).

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