<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:4d45fbf5-a68e-4f60-abf4-fa99d55951b5,g:9eaec959-e623-4732-b47a-01bb8b7e7ed6-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:itub="http://itacunibanco.com/20251231" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types1="http://www.xbrl.org/dtr/type/2022-03-31" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://itacunibanco.com/20251231">
  <xs:import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2022-03-31" schemaLocation="https://www.xbrl.org/dtr/type/2022-03-31/types.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/country/2025" schemaLocation="https://xbrl.sec.gov/country/2025/country-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/currency/2025" schemaLocation="https://xbrl.sec.gov/currency/2025/currency-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/cyd-af-sub/2025" schemaLocation="https://xbrl.sec.gov/cyd/2025/cyd-af-sub-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd-sub/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-sub-2025.xsd"/>
  <xs:import namespace="https://xbrl.ifrs.org/taxonomy/2025-03-27/ifrs-full" schemaLocation="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="itub-20251231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="itub-20251231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="itub-20251231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="itub-20251231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="Cover" roleURI="http://itacunibanco.com/role/Cover">
        <link:definition>0000001 - Document - Cover</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheet" roleURI="http://itacunibanco.com/role/ConsolidatedBalanceSheet">
        <link:definition>9952151 - Statement - Consolidated Balance Sheet</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofIncome" roleURI="http://itacunibanco.com/role/ConsolidatedStatementofIncome">
        <link:definition>9952152 - Statement - Consolidated Statement of Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofIncome_1" roleURI="http://itacunibanco.com/role/ConsolidatedStatementofIncome_1">
        <link:definition>9952152 - Statement - Consolidated Statement of Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofComprehensiveIncome" roleURI="http://itacunibanco.com/role/ConsolidatedStatementofComprehensiveIncome">
        <link:definition>9952153 - Statement - Consolidated Statement of Comprehensive Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofComprehensiveIncome_1" roleURI="http://itacunibanco.com/role/ConsolidatedStatementofComprehensiveIncome_1">
        <link:definition>9952153 - Statement - Consolidated Statement of Comprehensive Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofChangesinStockholdersEquity" roleURI="http://itacunibanco.com/role/ConsolidatedStatementofChangesinStockholdersEquity">
        <link:definition>9952154 - Statement - Consolidated Statement of Changes in Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofCashFlows" roleURI="http://itacunibanco.com/role/ConsolidatedStatementofCashFlows">
        <link:definition>9952155 - Statement - Consolidated Statement of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Operations" roleURI="http://itacunibanco.com/role/Operations">
        <link:definition>9952156 - Disclosure - Operations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Materialaccountingpolicies" roleURI="http://itacunibanco.com/role/Materialaccountingpolicies">
        <link:definition>9952157 - Disclosure - Material accounting policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Businessdevelopment" roleURI="http://itacunibanco.com/role/Businessdevelopment">
        <link:definition>9952158 - Disclosure - Business development</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Interbankdepositsandsecuritiespurchasedunderagreementstoresell" roleURI="http://itacunibanco.com/role/Interbankdepositsandsecuritiespurchasedunderagreementstoresell">
        <link:definition>9952159 - Disclosure - Interbank deposits and securities purchased under agreements to resell</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatfairvaluethroughprofitorlossFVPL" roleURI="http://itacunibanco.com/role/SecuritiesatfairvaluethroughprofitorlossFVPL">
        <link:definition>9952160 - Disclosure - Securities at fair value through profit or loss (FVPL)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Derivatives" roleURI="http://itacunibanco.com/role/Derivatives">
        <link:definition>9952161 - Disclosure - Derivatives</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Hedgeaccounting" roleURI="http://itacunibanco.com/role/Hedgeaccounting">
        <link:definition>9952162 - Disclosure - Hedge accounting</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatfairvaluethroughothercomprehensiveincomeFVOCI" roleURI="http://itacunibanco.com/role/SecuritiesatfairvaluethroughothercomprehensiveincomeFVOCI">
        <link:definition>9952163 - Disclosure - Securities at fair value through other comprehensive income (FVOCI)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatamortizedcostAC" roleURI="http://itacunibanco.com/role/SecuritiesatamortizedcostAC">
        <link:definition>9952164 - Disclosure - Securities at amortized cost (AC)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Loanandleaseoperations" roleURI="http://itacunibanco.com/role/Loanandleaseoperations">
        <link:definition>9952165 - Disclosure - Loan and lease operations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Investmentsinassociatesandjointventures" roleURI="http://itacunibanco.com/role/Investmentsinassociatesandjointventures">
        <link:definition>9952166 - Disclosure - Investments in associates and joint ventures</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeaseoperationsLessee" roleURI="http://itacunibanco.com/role/LeaseoperationsLessee">
        <link:definition>9952167 - Disclosure - Lease operations - Lessee</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Fixedassets" roleURI="http://itacunibanco.com/role/Fixedassets">
        <link:definition>9952168 - Disclosure - Fixed assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleassets" roleURI="http://itacunibanco.com/role/GoodwillandIntangibleassets">
        <link:definition>9952169 - Disclosure - Goodwill and Intangible assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Deposits" roleURI="http://itacunibanco.com/role/Deposits">
        <link:definition>9952170 - Disclosure - Deposits</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Financialliabilitiesdesignatedatfairvaluethroughprofitorloss" roleURI="http://itacunibanco.com/role/Financialliabilitiesdesignatedatfairvaluethroughprofitorloss">
        <link:definition>9952171 - Disclosure - Financial liabilities designated at fair value through profit or loss</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Securitiessoldunderrepurchaseagreementsandinterbankandinstitutionalmarketfunds" roleURI="http://itacunibanco.com/role/Securitiessoldunderrepurchaseagreementsandinterbankandinstitutionalmarketfunds">
        <link:definition>9952172 - Disclosure - Securities sold under repurchase agreements and interbank and institutional market funds</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Otherassetsandliabilities" roleURI="http://itacunibanco.com/role/Otherassetsandliabilities">
        <link:definition>9952173 - Disclosure - Other assets and liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Stockholdersequity" roleURI="http://itacunibanco.com/role/Stockholdersequity">
        <link:definition>9952174 - Disclosure - Stockholders&#8217; equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Sharebasedpayment" roleURI="http://itacunibanco.com/role/Sharebasedpayment">
        <link:definition>9952175 - Disclosure - Share-based payment</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Interestandsimilarincomeandexpensesandincomeoffinancialassetsandliabilitiesatfairvaluethroughprofitorloss" roleURI="http://itacunibanco.com/role/Interestandsimilarincomeandexpensesandincomeoffinancialassetsandliabilitiesatfairvaluethroughprofitorloss">
        <link:definition>9952176 - Disclosure - Interest and similar income and expenses and income of financial assets and liabilities at fair value through profit or loss</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Commissionsandbankingfees" roleURI="http://itacunibanco.com/role/Commissionsandbankingfees">
        <link:definition>9952177 - Disclosure - Commissions and banking fees</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Generalandadministrativeexpenses" roleURI="http://itacunibanco.com/role/Generalandadministrativeexpenses">
        <link:definition>9952178 - Disclosure - General and administrative expenses</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Taxes" roleURI="http://itacunibanco.com/role/Taxes">
        <link:definition>9952179 - Disclosure - Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Earningspershare" roleURI="http://itacunibanco.com/role/Earningspershare">
        <link:definition>9952180 - Disclosure - Earnings per share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Postemploymentbenefits" roleURI="http://itacunibanco.com/role/Postemploymentbenefits">
        <link:definition>9952181 - Disclosure - Post-employment benefits</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Insurancecontractsandprivatepension" roleURI="http://itacunibanco.com/role/Insurancecontractsandprivatepension">
        <link:definition>9952182 - Disclosure - Insurance contracts and private pension</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Fairvalue" roleURI="http://itacunibanco.com/role/Fairvalue">
        <link:definition>9952183 - Disclosure - Fair value</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Provisionscontingentassetsandcontingentliabilities" roleURI="http://itacunibanco.com/role/Provisionscontingentassetsandcontingentliabilities">
        <link:definition>9952184 - Disclosure - Provisions, contingent assets and contingent liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformation" roleURI="http://itacunibanco.com/role/SegmentInformation">
        <link:definition>9952185 - Disclosure - Segment Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Relatedparties" roleURI="http://itacunibanco.com/role/Relatedparties">
        <link:definition>9952186 - Disclosure - Related parties</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagement" roleURI="http://itacunibanco.com/role/RiskandCapitalManagement">
        <link:definition>9952187 - Disclosure - Risk and Capital Management</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Supplementaryinformation" roleURI="http://itacunibanco.com/role/Supplementaryinformation">
        <link:definition>9952188 - Disclosure - Supplementary information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Subsequentevent" roleURI="http://itacunibanco.com/role/Subsequentevent">
        <link:definition>9952189 - Disclosure - Subsequent event</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MaterialaccountingpoliciesPolicies" roleURI="http://itacunibanco.com/role/MaterialaccountingpoliciesPolicies">
        <link:definition>9955511 - Disclosure - Material accounting policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MaterialaccountingpoliciesTables" roleURI="http://itacunibanco.com/role/MaterialaccountingpoliciesTables">
        <link:definition>9955512 - Disclosure - Material accounting policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InterbankdepositsandsecuritiespurchasedunderagreementstoresellTables" roleURI="http://itacunibanco.com/role/InterbankdepositsandsecuritiespurchasedunderagreementstoresellTables">
        <link:definition>9955513 - Disclosure - Interbank deposits and securities purchased under agreements to resell (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatfairvaluethroughprofitorlossFVPLTables" roleURI="http://itacunibanco.com/role/SecuritiesatfairvaluethroughprofitorlossFVPLTables">
        <link:definition>9955514 - Disclosure - Securities at fair value through profit or loss (FVPL) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesTables" roleURI="http://itacunibanco.com/role/DerivativesTables">
        <link:definition>9955515 - Disclosure - Derivatives (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HedgeaccountingTables" roleURI="http://itacunibanco.com/role/HedgeaccountingTables">
        <link:definition>9955516 - Disclosure - Hedge accounting (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatfairvaluethroughothercomprehensiveincomeFVOCITables" roleURI="http://itacunibanco.com/role/SecuritiesatfairvaluethroughothercomprehensiveincomeFVOCITables">
        <link:definition>9955517 - Disclosure - Securities at fair value through other comprehensive income (FVOCI) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatamortizedcostACTables" roleURI="http://itacunibanco.com/role/SecuritiesatamortizedcostACTables">
        <link:definition>9955518 - Disclosure - Securities at amortized cost (AC) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandleaseoperationsTables" roleURI="http://itacunibanco.com/role/LoanandleaseoperationsTables">
        <link:definition>9955519 - Disclosure - Loan and lease operations (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsinassociatesandjointventuresTables" roleURI="http://itacunibanco.com/role/InvestmentsinassociatesandjointventuresTables">
        <link:definition>9955520 - Disclosure - Investments in associates and joint ventures (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeaseoperationsLesseeTables" roleURI="http://itacunibanco.com/role/LeaseoperationsLesseeTables">
        <link:definition>9955521 - Disclosure - Lease operations - Lessee (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FixedassetsTables" roleURI="http://itacunibanco.com/role/FixedassetsTables">
        <link:definition>9955522 - Disclosure - Fixed assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleassetsTables" roleURI="http://itacunibanco.com/role/GoodwillandIntangibleassetsTables">
        <link:definition>9955523 - Disclosure - Goodwill and Intangible assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DepositsTables" roleURI="http://itacunibanco.com/role/DepositsTables">
        <link:definition>9955524 - Disclosure - Deposits (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiessoldunderrepurchaseagreementsandinterbankandinstitutionalmarketfundsTables" roleURI="http://itacunibanco.com/role/SecuritiessoldunderrepurchaseagreementsandinterbankandinstitutionalmarketfundsTables">
        <link:definition>9955525 - Disclosure - Securities sold under repurchase agreements and interbank and institutional market funds (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherassetsandliabilitiesTables" roleURI="http://itacunibanco.com/role/OtherassetsandliabilitiesTables">
        <link:definition>9955526 - Disclosure - Other assets and liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersequityTables" roleURI="http://itacunibanco.com/role/StockholdersequityTables">
        <link:definition>9955527 - Disclosure - Stockholders&#8217; equity (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SharebasedpaymentTables" roleURI="http://itacunibanco.com/role/SharebasedpaymentTables">
        <link:definition>9955528 - Disclosure - Share-based payment (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InterestandsimilarincomeandexpensesandincomeoffinancialassetsandliabilitiesatfairvaluethroughprofitorlossTables" roleURI="http://itacunibanco.com/role/InterestandsimilarincomeandexpensesandincomeoffinancialassetsandliabilitiesatfairvaluethroughprofitorlossTables">
        <link:definition>9955529 - Disclosure - Interest and similar income and expenses and income of financial assets and liabilities at fair value through profit or loss (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommissionsandbankingfeesTables" roleURI="http://itacunibanco.com/role/CommissionsandbankingfeesTables">
        <link:definition>9955530 - Disclosure - Commissions and banking fees (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GeneralandadministrativeexpensesTables" roleURI="http://itacunibanco.com/role/GeneralandadministrativeexpensesTables">
        <link:definition>9955531 - Disclosure - General and administrative expenses (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="TaxesTables" roleURI="http://itacunibanco.com/role/TaxesTables">
        <link:definition>9955532 - Disclosure - Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningspershareTables" roleURI="http://itacunibanco.com/role/EarningspershareTables">
        <link:definition>9955533 - Disclosure - Earnings per share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PostemploymentbenefitsTables" roleURI="http://itacunibanco.com/role/PostemploymentbenefitsTables">
        <link:definition>9955534 - Disclosure - Post-employment benefits (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InsurancecontractsandprivatepensionTables" roleURI="http://itacunibanco.com/role/InsurancecontractsandprivatepensionTables">
        <link:definition>9955535 - Disclosure - Insurance contracts and private pension (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairvalueTables" roleURI="http://itacunibanco.com/role/FairvalueTables">
        <link:definition>9955536 - Disclosure - Fair value (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ProvisionscontingentassetsandcontingentliabilitiesTables" roleURI="http://itacunibanco.com/role/ProvisionscontingentassetsandcontingentliabilitiesTables">
        <link:definition>9955537 - Disclosure - Provisions, contingent assets and contingent liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationTables" roleURI="http://itacunibanco.com/role/SegmentInformationTables">
        <link:definition>9955538 - Disclosure - Segment Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedpartiesTables" roleURI="http://itacunibanco.com/role/RelatedpartiesTables">
        <link:definition>9955539 - Disclosure - Related parties (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementTables" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementTables">
        <link:definition>9955540 - Disclosure - Risk and Capital Management (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OperationsDetails" roleURI="http://itacunibanco.com/role/OperationsDetails">
        <link:definition>9955541 - Disclosure - Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MaterialaccountingpoliciesNarrativeDetails" roleURI="http://itacunibanco.com/role/MaterialaccountingpoliciesNarrativeDetails">
        <link:definition>9955542 - Disclosure - Material accounting policies - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="MaterialaccountingpoliciesScheduleofConsolidatedCompaniesDetails" roleURI="http://itacunibanco.com/role/MaterialaccountingpoliciesScheduleofConsolidatedCompaniesDetails">
        <link:definition>9955543 - Disclosure - Material accounting policies - Schedule of Consolidated Companies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BusinessdevelopmentDetails" roleURI="http://itacunibanco.com/role/BusinessdevelopmentDetails">
        <link:definition>9955544 - Disclosure - Business development (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InterbankdepositsandsecuritiespurchasedunderagreementstoresellDetails" roleURI="http://itacunibanco.com/role/InterbankdepositsandsecuritiespurchasedunderagreementstoresellDetails">
        <link:definition>9955545 - Disclosure - Interbank deposits and securities purchased under agreements to resell (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatfairvaluethroughprofitorlossFVPLScheduleofFinancialAssetsAndLiabilitiesDetails" roleURI="http://itacunibanco.com/role/SecuritiesatfairvaluethroughprofitorlossFVPLScheduleofFinancialAssetsAndLiabilitiesDetails">
        <link:definition>9955546 - Disclosure - Securities at fair value through profit or loss (FVPL) - Schedule of Financial Assets And Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatfairvaluethroughprofitorlossFVPLNarrativeDetails" roleURI="http://itacunibanco.com/role/SecuritiesatfairvaluethroughprofitorlossFVPLNarrativeDetails">
        <link:definition>9955547 - Disclosure - Securities at fair value through profit or loss (FVPL) - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatfairvaluethroughprofitorlossFVPLScheduleofCostandFairValueperMaturityofFinancialAssetsatFairValueThroughProfitorLossDetails" roleURI="http://itacunibanco.com/role/SecuritiesatfairvaluethroughprofitorlossFVPLScheduleofCostandFairValueperMaturityofFinancialAssetsatFairValueThroughProfitorLossDetails">
        <link:definition>9955548 - Disclosure - Securities at fair value through profit or loss (FVPL) - Schedule of Cost and Fair Value per Maturity of Financial Assets at Fair Value Through Profit or Loss (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesScheduleofDerivativeFinancialInstrumentsPortfolioAssetsAndLiabilitiesDetails" roleURI="http://itacunibanco.com/role/DerivativesScheduleofDerivativeFinancialInstrumentsPortfolioAssetsAndLiabilitiesDetails">
        <link:definition>9955549 - Disclosure - Derivatives - Schedule of Derivative Financial Instruments Portfolio (Assets And Liabilities) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesNarrativeDetails" roleURI="http://itacunibanco.com/role/DerivativesNarrativeDetails">
        <link:definition>9955550 - Disclosure - Derivatives - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesScheduleofDerivativesbyindexandRiskFactorDetails" roleURI="http://itacunibanco.com/role/DerivativesScheduleofDerivativesbyindexandRiskFactorDetails">
        <link:definition>9955551 - Disclosure - Derivatives - Schedule of Derivatives by index and Risk Factor (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesScheduleofCreditderivativesDetails" roleURI="http://itacunibanco.com/role/DerivativesScheduleofCreditderivativesDetails">
        <link:definition>9955552 - Disclosure - Derivatives - Schedule of Credit derivatives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesScheduleofNotionalAmountOfCreditDerivativesPurchasedDetails" roleURI="http://itacunibanco.com/role/DerivativesScheduleofNotionalAmountOfCreditDerivativesPurchasedDetails">
        <link:definition>9955553 - Disclosure - Derivatives - Schedule of Notional Amount Of Credit Derivatives Purchased (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesScheduleofFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsAndSimilarAgreementsDetails" roleURI="http://itacunibanco.com/role/DerivativesScheduleofFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsAndSimilarAgreementsDetails">
        <link:definition>9955554 - Disclosure - Derivatives - Schedule of Financial Assets Subject To Offsetting, Enforceable Master Netting Arrangements And Similar Agreements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HedgeaccountingNarrativeDetails" roleURI="http://itacunibanco.com/role/HedgeaccountingNarrativeDetails">
        <link:definition>9955555 - Disclosure - Hedge accounting - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HedgeaccountingScheduleofNotionalAmountAndTheFairValueAdjustmentsOfHedgeInstrumentsDetails" roleURI="http://itacunibanco.com/role/HedgeaccountingScheduleofNotionalAmountAndTheFairValueAdjustmentsOfHedgeInstrumentsDetails">
        <link:definition>9955556 - Disclosure - Hedge accounting - Schedule of Notional Amount And The Fair Value Adjustments Of Hedge Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HedgeaccountingScheduleofBreakdownByMaturityOfTheHedgingStrategiesDetails" roleURI="http://itacunibanco.com/role/HedgeaccountingScheduleofBreakdownByMaturityOfTheHedgingStrategiesDetails">
        <link:definition>9955557 - Disclosure - Hedge accounting - Schedule of Breakdown By Maturity Of The Hedging Strategies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HedgeaccountingScheduleofHedgeInstrumentsandBookValueofHedgedItemDetails" roleURI="http://itacunibanco.com/role/HedgeaccountingScheduleofHedgeInstrumentsandBookValueofHedgedItemDetails">
        <link:definition>9955558 - Disclosure - Hedge accounting - Schedule of Hedge Instruments and Book Value of Hedged Item (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HedgeaccountingScheduleOfHedgeInstrumentsDetails" roleURI="http://itacunibanco.com/role/HedgeaccountingScheduleOfHedgeInstrumentsDetails">
        <link:definition>9955559 - Disclosure - Hedge accounting - Schedule Of Hedge Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HedgeaccountingScheduleofTheFinancialPositionAndPerformanceDetails" roleURI="http://itacunibanco.com/role/HedgeaccountingScheduleofTheFinancialPositionAndPerformanceDetails">
        <link:definition>9955560 - Disclosure - Hedge accounting - Schedule of The Financial Position And Performance (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HedgeaccountingScheduleofManagementStrategyGuidelinesDetails" roleURI="http://itacunibanco.com/role/HedgeaccountingScheduleofManagementStrategyGuidelinesDetails">
        <link:definition>9955561 - Disclosure - Hedge accounting - Schedule of Management Strategy Guidelines (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HedgeaccountingScheduleofTypeOfStrategyIsTheCurrencyRiskDetails" roleURI="http://itacunibanco.com/role/HedgeaccountingScheduleofTypeOfStrategyIsTheCurrencyRiskDetails">
        <link:definition>9955562 - Disclosure - Hedge accounting - Schedule of Type Of Strategy Is The Currency Risk (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HedgeaccountingScheduleOfHedgeAccountingDetails" roleURI="http://itacunibanco.com/role/HedgeaccountingScheduleOfHedgeAccountingDetails">
        <link:definition>9955563 - Disclosure - Hedge accounting - Schedule Of Hedge Accounting (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatfairvaluethroughothercomprehensiveincomeFVOCIScheduleofFinancialAssetsatFairValuethroughOtherComprehensiveIncomeDetails" roleURI="http://itacunibanco.com/role/SecuritiesatfairvaluethroughothercomprehensiveincomeFVOCIScheduleofFinancialAssetsatFairValuethroughOtherComprehensiveIncomeDetails">
        <link:definition>9955564 - Disclosure - Securities at fair value through other comprehensive income (FVOCI) - Schedule of Financial Assets at Fair Value through Other Comprehensive Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatfairvaluethroughothercomprehensiveincomeFVOCINarrativeDetails" roleURI="http://itacunibanco.com/role/SecuritiesatfairvaluethroughothercomprehensiveincomeFVOCINarrativeDetails">
        <link:definition>9955565 - Disclosure - Securities at fair value through other comprehensive income (FVOCI) - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatfairvaluethroughothercomprehensiveincomeFVOCIScheduleofFinancialAssetsThroughOtherComprehensiveIncomeSecuritiesByMaturityDetails" roleURI="http://itacunibanco.com/role/SecuritiesatfairvaluethroughothercomprehensiveincomeFVOCIScheduleofFinancialAssetsThroughOtherComprehensiveIncomeSecuritiesByMaturityDetails">
        <link:definition>9955566 - Disclosure - Securities at fair value through other comprehensive income (FVOCI) - Schedule of Financial Assets Through Other Comprehensive Income - Securities By Maturity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatfairvaluethroughothercomprehensiveincomeFVOCIScheduleofReconciliationofExpectedLossforFinancialAssetsatFairValueThroughOtherComprehensiveInstrumentSecuritiesSegregatedbyStagesDetails" roleURI="http://itacunibanco.com/role/SecuritiesatfairvaluethroughothercomprehensiveincomeFVOCIScheduleofReconciliationofExpectedLossforFinancialAssetsatFairValueThroughOtherComprehensiveInstrumentSecuritiesSegregatedbyStagesDetails">
        <link:definition>9955567 - Disclosure - Securities at fair value through other comprehensive income (FVOCI) - Schedule of Reconciliation of Expected Loss for Financial Assets at Fair Value Through Other Comprehensive Instrument- Securities, Segregated by Stages (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatamortizedcostACScheduleofFinancialAssetsAtAmortizedCostDetails" roleURI="http://itacunibanco.com/role/SecuritiesatamortizedcostACScheduleofFinancialAssetsAtAmortizedCostDetails">
        <link:definition>9955568 - Disclosure - Securities at amortized cost (AC) - Schedule of Financial Assets At Amortized Cost (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatamortizedcostACNarrativeDetails" roleURI="http://itacunibanco.com/role/SecuritiesatamortizedcostACNarrativeDetails">
        <link:definition>9955569 - Disclosure - Securities at amortized cost (AC) - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatamortizedcostACScheduleofAmortizedCostOfFinancialAssetsAtAmortizedCostDetails" roleURI="http://itacunibanco.com/role/SecuritiesatamortizedcostACScheduleofAmortizedCostOfFinancialAssetsAtAmortizedCostDetails">
        <link:definition>9955570 - Disclosure - Securities at amortized cost (AC) - Schedule of Amortized Cost Of Financial Assets At Amortized Cost (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiesatamortizedcostACScheduleofReconciliationOfExpectedLossToFinancialAssetsAtAmortizedCostDetails" roleURI="http://itacunibanco.com/role/SecuritiesatamortizedcostACScheduleofReconciliationOfExpectedLossToFinancialAssetsAtAmortizedCostDetails">
        <link:definition>9955571 - Disclosure - Securities at amortized cost (AC) - Schedule of Reconciliation Of Expected Loss To Financial Assets At Amortized Cost (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandleaseoperationsScheduleofCompositionofCarryingAmountofLoanOperationsandLeaseOperationsbyTypeSectorofDebtorMaturityandConcentrationDetails" roleURI="http://itacunibanco.com/role/LoanandleaseoperationsScheduleofCompositionofCarryingAmountofLoanOperationsandLeaseOperationsbyTypeSectorofDebtorMaturityandConcentrationDetails">
        <link:definition>9955572 - Disclosure - Loan and lease operations - Schedule of Composition of Carrying Amount of Loan Operations and Lease Operations by Type Sector of Debtor Maturity and Concentration (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandleaseoperationsNarrativeDetails" roleURI="http://itacunibanco.com/role/LoanandleaseoperationsNarrativeDetails">
        <link:definition>9955573 - Disclosure - Loan and lease operations - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandleaseoperationsScheduleofReconciliationofGrossPortfolioofLoansDetails" roleURI="http://itacunibanco.com/role/LoanandleaseoperationsScheduleofReconciliationofGrossPortfolioofLoansDetails">
        <link:definition>9955574 - Disclosure - Loan and lease operations - Schedule of Reconciliation of Gross Portfolio of Loans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandleaseoperationsScheduleofReconciliationofExpectedLoanLossesforLoanOperationsandLeaseOperationsDetails" roleURI="http://itacunibanco.com/role/LoanandleaseoperationsScheduleofReconciliationofExpectedLoanLossesforLoanOperationsandLeaseOperationsDetails">
        <link:definition>9955575 - Disclosure - Loan and lease operations - Schedule of Reconciliation of Expected Loan Losses for Loan Operations and Lease Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandleaseoperationsScheduleofAnalysisofPresentValueofMinimumFuturePaymentsReceivablefromFinanceLeasesbyMaturityDetails" roleURI="http://itacunibanco.com/role/LoanandleaseoperationsScheduleofAnalysisofPresentValueofMinimumFuturePaymentsReceivablefromFinanceLeasesbyMaturityDetails">
        <link:definition>9955576 - Disclosure - Loan and lease operations - Schedule of Analysis of Present Value of Minimum Future Payments Receivable from Finance Leases by Maturity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandleaseoperationsScheduleofSecuritizationorTransferofFinancialAssetsDetails" roleURI="http://itacunibanco.com/role/LoanandleaseoperationsScheduleofSecuritizationorTransferofFinancialAssetsDetails">
        <link:definition>9955577 - Disclosure - Loan and lease operations - Schedule of Securitization or Transfer of Financial Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LoanandleaseoperationsScheduleofFinanceLeaseIncomeDetails" roleURI="http://itacunibanco.com/role/LoanandleaseoperationsScheduleofFinanceLeaseIncomeDetails">
        <link:definition>9955578 - Disclosure - Loan and lease operations - Schedule of Finance Lease Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsinassociatesandjointventuresScheduleofNonMaterialIndividualInvestmentsDetails" roleURI="http://itacunibanco.com/role/InvestmentsinassociatesandjointventuresScheduleofNonMaterialIndividualInvestmentsDetails">
        <link:definition>9955579 - Disclosure - Investments in associates and joint ventures - Schedule of Non-Material Individual Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsinassociatesandjointventuresNarrativeDetails" roleURI="http://itacunibanco.com/role/InvestmentsinassociatesandjointventuresNarrativeDetails">
        <link:definition>9955580 - Disclosure - Investments in associates and joint ventures - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeaseoperationsLesseeNarrativeDetails" roleURI="http://itacunibanco.com/role/LeaseoperationsLesseeNarrativeDetails">
        <link:definition>9955581 - Disclosure - Lease operations - Lessee - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeaseoperationsLesseeScheduleofLeaseLiabilitiesUndiscountedDetails" roleURI="http://itacunibanco.com/role/LeaseoperationsLesseeScheduleofLeaseLiabilitiesUndiscountedDetails">
        <link:definition>9955582 - Disclosure - Lease operations - Lessee - Schedule of Lease Liabilities Undiscounted (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeaseoperationsLesseeScheduleofAmountsRecognizedinStatementofNetIncomeLossDetails" roleURI="http://itacunibanco.com/role/LeaseoperationsLesseeScheduleofAmountsRecognizedinStatementofNetIncomeLossDetails">
        <link:definition>9955583 - Disclosure - Lease operations - Lessee - Schedule of Amounts Recognized in Statement of Net Income Loss (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FixedassetsScheduleofFixedAssetsDetails" roleURI="http://itacunibanco.com/role/FixedassetsScheduleofFixedAssetsDetails">
        <link:definition>9955584 - Disclosure - Fixed assets - Schedule of Fixed Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FixedassetsNarrativeDetails" roleURI="http://itacunibanco.com/role/FixedassetsNarrativeDetails">
        <link:definition>9955585 - Disclosure - Fixed assets - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleassetsScheduleofGoodwillandIntangibleAssetsDetails" roleURI="http://itacunibanco.com/role/GoodwillandIntangibleassetsScheduleofGoodwillandIntangibleAssetsDetails">
        <link:definition>9955586 - Disclosure - Goodwill and Intangible assets - Schedule of Goodwill and Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleassetsNarrativeDetails" roleURI="http://itacunibanco.com/role/GoodwillandIntangibleassetsNarrativeDetails">
        <link:definition>9955587 - Disclosure - Goodwill and Intangible assets - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DepositsDetails" roleURI="http://itacunibanco.com/role/DepositsDetails">
        <link:definition>9955588 - Disclosure - Deposits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FinancialliabilitiesdesignatedatfairvaluethroughprofitorlossDetails" roleURI="http://itacunibanco.com/role/FinancialliabilitiesdesignatedatfairvaluethroughprofitorlossDetails">
        <link:definition>9955589 - Disclosure - Financial liabilities designated at fair value through profit or loss (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiessoldunderrepurchaseagreementsandinterbankandinstitutionalmarketfundsScheduleofFinancialAssetsandLiabilitiesDetails" roleURI="http://itacunibanco.com/role/SecuritiessoldunderrepurchaseagreementsandinterbankandinstitutionalmarketfundsScheduleofFinancialAssetsandLiabilitiesDetails">
        <link:definition>9955590 - Disclosure - Securities sold under repurchase agreements and interbank and institutional market funds - Schedule of Financial Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiessoldunderrepurchaseagreementsandinterbankandinstitutionalmarketfundsScheduleofInterbankMarketDebtDetails" roleURI="http://itacunibanco.com/role/SecuritiessoldunderrepurchaseagreementsandinterbankandinstitutionalmarketfundsScheduleofInterbankMarketDebtDetails">
        <link:definition>9955591 - Disclosure - Securities sold under repurchase agreements and interbank and institutional market funds - Schedule of Interbank Market Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiessoldunderrepurchaseagreementsandinterbankandinstitutionalmarketfundsScheduleofInstitutionalMarketDebtDetails" roleURI="http://itacunibanco.com/role/SecuritiessoldunderrepurchaseagreementsandinterbankandinstitutionalmarketfundsScheduleofInstitutionalMarketDebtDetails">
        <link:definition>9955592 - Disclosure - Securities sold under repurchase agreements and interbank and institutional market funds - Schedule of Institutional Market Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SecuritiessoldunderrepurchaseagreementsandinterbankandinstitutionalmarketfundsScheduleofSubordinatedDebtIncludingPerpetualDebtsDetails" roleURI="http://itacunibanco.com/role/SecuritiessoldunderrepurchaseagreementsandinterbankandinstitutionalmarketfundsScheduleofSubordinatedDebtIncludingPerpetualDebtsDetails">
        <link:definition>9955593 - Disclosure - Securities sold under repurchase agreements and interbank and institutional market funds - Schedule of Subordinated Debt, Including Perpetual Debts (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherassetsandliabilitiesScheduleofOtherAssetsDetails" roleURI="http://itacunibanco.com/role/OtherassetsandliabilitiesScheduleofOtherAssetsDetails">
        <link:definition>9955594 - Disclosure - Other assets and liabilities - Schedule of Other Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherassetsandliabilitiesScheduleofOtherLiabilitiesDetails" roleURI="http://itacunibanco.com/role/OtherassetsandliabilitiesScheduleofOtherLiabilitiesDetails">
        <link:definition>9955595 - Disclosure - Other assets and liabilities -Schedule of Other Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersequityNarrativeDetails" roleURI="http://itacunibanco.com/role/StockholdersequityNarrativeDetails">
        <link:definition>9955596 - Disclosure - Stockholders&#8217; equity - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersequityScheduleofChangeinSharesofPaidinCapitalintheBeginningandEndofthePeriodDetails" roleURI="http://itacunibanco.com/role/StockholdersequityScheduleofChangeinSharesofPaidinCapitalintheBeginningandEndofthePeriodDetails">
        <link:definition>9955597 - Disclosure - Stockholders' equity - Schedule of Change in Shares of Paid-in Capital in the Beginning and End of the Period (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersequityScheduleofCostofSharesPurchasedandAverageCostofTreasurySharesandMarketPriceDetails" roleURI="http://itacunibanco.com/role/StockholdersequityScheduleofCostofSharesPurchasedandAverageCostofTreasurySharesandMarketPriceDetails">
        <link:definition>9955598 - Disclosure - Stockholders' equity - Schedule of Cost of Shares Purchased and Average Cost of Treasury Shares and Market Price (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersequityScheduleofCalculationofDividendsandInterestonCapitalDetails" roleURI="http://itacunibanco.com/role/StockholdersequityScheduleofCalculationofDividendsandInterestonCapitalDetails">
        <link:definition>9955599 - Disclosure - Stockholders' equity - Schedule of Calculation of Dividends and Interest on Capital (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersequityScheduleofStockholdersCompensationDetails" roleURI="http://itacunibanco.com/role/StockholdersequityScheduleofStockholdersCompensationDetails">
        <link:definition>9955600 - Disclosure - Stockholders' equity - Schedule of Stockholders Compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersequityScheduleofCapitalReservesandRevenueReservesDetails" roleURI="http://itacunibanco.com/role/StockholdersequityScheduleofCapitalReservesandRevenueReservesDetails">
        <link:definition>9955601 - Disclosure - Stockholders' equity - Schedule of Capital Reserves and Revenue Reserves (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersequityScheduleofNonControllingInterestsDetails" roleURI="http://itacunibanco.com/role/StockholdersequityScheduleofNonControllingInterestsDetails">
        <link:definition>9955602 - Disclosure - Stockholders' equity - Schedule of Non-Controlling Interests (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SharebasedpaymentNarrativeDetails" roleURI="http://itacunibanco.com/role/SharebasedpaymentNarrativeDetails">
        <link:definition>9955603 - Disclosure - Share-based payment - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SharebasedpaymentScheduleofExpensesonShareBasedPaymentPlansDetails" roleURI="http://itacunibanco.com/role/SharebasedpaymentScheduleofExpensesonShareBasedPaymentPlansDetails">
        <link:definition>9955604 - Disclosure - Share-based payment - Schedule of Expenses on Share-Based Payment Plans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SharebasedpaymentScheduleofChangesinShareBasedCompensationPlanDetails" roleURI="http://itacunibanco.com/role/SharebasedpaymentScheduleofChangesinShareBasedCompensationPlanDetails">
        <link:definition>9955605 - Disclosure - Share-based payment - Schedule of Changes in Share-Based Compensation Plan (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SharebasedpaymentScheduleofChangeinShareBasedVariableCompensationDetails" roleURI="http://itacunibanco.com/role/SharebasedpaymentScheduleofChangeinShareBasedVariableCompensationDetails">
        <link:definition>9955606 - Disclosure - Share-based payment - Schedule of Change in Share-Based Variable Compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InterestandsimilarincomeandexpensesandincomeoffinancialassetsandliabilitiesatfairvaluethroughprofitorlossScheduleofInterestandSimilarIncomeDetails" roleURI="http://itacunibanco.com/role/InterestandsimilarincomeandexpensesandincomeoffinancialassetsandliabilitiesatfairvaluethroughprofitorlossScheduleofInterestandSimilarIncomeDetails">
        <link:definition>9955607 - Disclosure - Interest and similar income and expenses and income of financial assets and liabilities at fair value through profit or loss - Schedule of Interest and Similar Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InterestandsimilarincomeandexpensesandincomeoffinancialassetsandliabilitiesatfairvaluethroughprofitorlossScheduleofInterestandSimilarExpenseDetails" roleURI="http://itacunibanco.com/role/InterestandsimilarincomeandexpensesandincomeoffinancialassetsandliabilitiesatfairvaluethroughprofitorlossScheduleofInterestandSimilarExpenseDetails">
        <link:definition>9955608 - Disclosure - Interest and similar income and expenses and income of financial assets and liabilities at fair value through profit or loss - Schedule of Interest and Similar Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InterestandsimilarincomeandexpensesandincomeoffinancialassetsandliabilitiesatfairvaluethroughprofitorlossScheduleofFinancialAssetsandLiabilitiesatFairValueThroughProfitorLossDetails" roleURI="http://itacunibanco.com/role/InterestandsimilarincomeandexpensesandincomeoffinancialassetsandliabilitiesatfairvaluethroughprofitorlossScheduleofFinancialAssetsandLiabilitiesatFairValueThroughProfitorLossDetails">
        <link:definition>9955609 - Disclosure - Interest and similar income and expenses and income of financial assets and liabilities at fair value through profit or loss - Schedule of Financial Assets and Liabilities at Fair Value Through Profit or Loss (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InterestandsimilarincomeandexpensesandincomeoffinancialassetsandliabilitiesatfairvaluethroughprofitorlossNarrativeDetails" roleURI="http://itacunibanco.com/role/InterestandsimilarincomeandexpensesandincomeoffinancialassetsandliabilitiesatfairvaluethroughprofitorlossNarrativeDetails">
        <link:definition>9955610 - Disclosure - Interest and similar income and expenses and income of financial assets and liabilities at fair value through profit or loss - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommissionsandbankingfeesDetails" roleURI="http://itacunibanco.com/role/CommissionsandbankingfeesDetails">
        <link:definition>9955611 - Disclosure - Commissions and banking fees (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GeneralandadministrativeexpensesDetails" roleURI="http://itacunibanco.com/role/GeneralandadministrativeexpensesDetails">
        <link:definition>9955612 - Disclosure - General and administrative expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="TaxesScheduleofCalculationofTaxRatesDetails" roleURI="http://itacunibanco.com/role/TaxesScheduleofCalculationofTaxRatesDetails">
        <link:definition>9955613 - Disclosure - Taxes - Schedule of Calculation of Tax Rates (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="TaxesScheduleofBreakdownofIncomeTaxandSocialContributionExpenseDetails" roleURI="http://itacunibanco.com/role/TaxesScheduleofBreakdownofIncomeTaxandSocialContributionExpenseDetails">
        <link:definition>9955614 - Disclosure - Taxes - Schedule of Breakdown of Income Tax and Social Contribution Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="TaxesScheduleofDeferredTaxAssetBalanceandRespectiveChangesDetails" roleURI="http://itacunibanco.com/role/TaxesScheduleofDeferredTaxAssetBalanceandRespectiveChangesDetails">
        <link:definition>9955615 - Disclosure - Taxes - Schedule of Deferred Tax Asset Balance and Respective Changes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="TaxesNarrativeDetails" roleURI="http://itacunibanco.com/role/TaxesNarrativeDetails">
        <link:definition>9955616 - Disclosure - Taxes - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="TaxesScheduleofRealizationandPresentValueofTaxCreditsandFromProvisionforDeferredIncomeTaxandSocialContributionDetails" roleURI="http://itacunibanco.com/role/TaxesScheduleofRealizationandPresentValueofTaxCreditsandFromProvisionforDeferredIncomeTaxandSocialContributionDetails">
        <link:definition>9955617 - Disclosure - Taxes - Schedule of Realization and Present Value of Tax Credits and From Provision for Deferred Income Tax and Social Contribution (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="TaxesScheduleofTaxLiabilitiesDetails" roleURI="http://itacunibanco.com/role/TaxesScheduleofTaxLiabilitiesDetails">
        <link:definition>9955618 - Disclosure - Taxes - Schedule of Tax Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="TaxesScheduleofTaxLiabilitiesDetails_1" roleURI="http://itacunibanco.com/role/TaxesScheduleofTaxLiabilitiesDetails_1">
        <link:definition>9955618 - Disclosure - Taxes - Schedule of Tax Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningspershareScheduleofEarningsPerShareDetails" roleURI="http://itacunibanco.com/role/EarningspershareScheduleofEarningsPerShareDetails">
        <link:definition>9955619 - Disclosure - Earnings per share - Schedule of Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningspershareScheduleofDilutedEarningsPerShareDetails" roleURI="http://itacunibanco.com/role/EarningspershareScheduleofDilutedEarningsPerShareDetails">
        <link:definition>9955620 - Disclosure - Earnings per share - Schedule of Diluted Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningspershareDetails" roleURI="http://itacunibanco.com/role/EarningspershareDetails">
        <link:definition>9955621 - Disclosure - Earnings per share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PostemploymentbenefitsScheduleofMainAssumptionsusedinActuarialValuationofRetirementPlansDetails" roleURI="http://itacunibanco.com/role/PostemploymentbenefitsScheduleofMainAssumptionsusedinActuarialValuationofRetirementPlansDetails">
        <link:definition>9955622 - Disclosure - Post-employment benefits - Schedule of Main Assumptions used in Actuarial Valuation of Retirement Plans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PostemploymentbenefitsScheduleofAllocationofAssetsbyCategorySegmentedintoQuotedandNotQuotedinActiveMarketDetails" roleURI="http://itacunibanco.com/role/PostemploymentbenefitsScheduleofAllocationofAssetsbyCategorySegmentedintoQuotedandNotQuotedinActiveMarketDetails">
        <link:definition>9955623 - Disclosure - Post-employment benefits - Schedule of Allocation of Assets by Category Segmented into Quoted and Not Quoted in Active Market (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PostemploymentbenefitsNarrativeDetails" roleURI="http://itacunibanco.com/role/PostemploymentbenefitsNarrativeDetails">
        <link:definition>9955624 - Disclosure - Post-employment benefits - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PostemploymentbenefitsScheduleofChangeinNetAmountRecognizedinBalanceSheetDetails" roleURI="http://itacunibanco.com/role/PostemploymentbenefitsScheduleofChangeinNetAmountRecognizedinBalanceSheetDetails">
        <link:definition>9955625 - Disclosure - Post-employment benefits - Schedule of Change in Net Amount Recognized in Balance Sheet (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PostemploymentbenefitsScheduleofDefinedBenefitContributionDetails" roleURI="http://itacunibanco.com/role/PostemploymentbenefitsScheduleofDefinedBenefitContributionDetails">
        <link:definition>9955626 - Disclosure - Post-employment benefits - Schedule of Defined Benefit Contribution (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PostemploymentbenefitsScheduleofMaturityProfileofDefinedBenefitLiabilitiesDetails" roleURI="http://itacunibanco.com/role/PostemploymentbenefitsScheduleofMaturityProfileofDefinedBenefitLiabilitiesDetails">
        <link:definition>9955627 - Disclosure - Post-employment benefits - Schedule of Maturity Profile of Defined Benefit Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PostemploymentbenefitsScheduleofSensitivityofDefinedBenefitObligationDetails" roleURI="http://itacunibanco.com/role/PostemploymentbenefitsScheduleofSensitivityofDefinedBenefitObligationDetails">
        <link:definition>9955628 - Disclosure - Post-employment benefits - Schedule of Sensitivity of Defined Benefit Obligation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InsurancecontractsandprivatepensionScheduleofInsuranceContractsandPrivatePensionPortfoliosandMeasurementApproachDetails" roleURI="http://itacunibanco.com/role/InsurancecontractsandprivatepensionScheduleofInsuranceContractsandPrivatePensionPortfoliosandMeasurementApproachDetails">
        <link:definition>9955629 - Disclosure - Insurance contracts and private pension - Schedule of Insurance Contracts and Private Pension Portfolios and Measurement Approach (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InsurancecontractsandprivatepensionScheduleofInsuranceContractsandPrivatePensionPortfoliosandMeasurementApproachDetails_1" roleURI="http://itacunibanco.com/role/InsurancecontractsandprivatepensionScheduleofInsuranceContractsandPrivatePensionPortfoliosandMeasurementApproachDetails_1">
        <link:definition>9955629 - Disclosure - Insurance contracts and private pension - Schedule of Insurance Contracts and Private Pension Portfolios and Measurement Approach (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InsurancecontractsandprivatepensionNarrativeDetails" roleURI="http://itacunibanco.com/role/InsurancecontractsandprivatepensionNarrativeDetails">
        <link:definition>9955630 - Disclosure - Insurance contracts and private pension - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InsurancecontractsandprivatepensionScheduleofReconciliationofInsuranceDetails" roleURI="http://itacunibanco.com/role/InsurancecontractsandprivatepensionScheduleofReconciliationofInsuranceDetails">
        <link:definition>9955631 - Disclosure - Insurance contracts and private pension - Schedule of Reconciliation of Insurance (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InsurancecontractsandprivatepensionScheduleofReconciliationofInsuranceOneDetails" roleURI="http://itacunibanco.com/role/InsurancecontractsandprivatepensionScheduleofReconciliationofInsuranceOneDetails">
        <link:definition>9955632 - Disclosure - Insurance contracts and private pension - Schedule of Reconciliation of Insurance One (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InsurancecontractsandprivatepensionScheduleofReconciliationofPrivatePensionDetails" roleURI="http://itacunibanco.com/role/InsurancecontractsandprivatepensionScheduleofReconciliationofPrivatePensionDetails">
        <link:definition>9955633 - Disclosure - Insurance contracts and private pension - Schedule of Reconciliation of Private Pension (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InsurancecontractsandprivatepensionScheduleofReconciliationofPrivatePensionOneDetails" roleURI="http://itacunibanco.com/role/InsurancecontractsandprivatepensionScheduleofReconciliationofPrivatePensionOneDetails">
        <link:definition>9955634 - Disclosure - Insurance contracts and private pension - Schedule of Reconciliation of Private Pension One (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InsurancecontractsandprivatepensionScheduleofContractualServiceMarginDetails" roleURI="http://itacunibanco.com/role/InsurancecontractsandprivatepensionScheduleofContractualServiceMarginDetails">
        <link:definition>9955635 - Disclosure - Insurance contracts and private pension - Schedule of Contractual Service Margin (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InsurancecontractsandprivatepensionScheduleofDiscountRatesDetails" roleURI="http://itacunibanco.com/role/InsurancecontractsandprivatepensionScheduleofDiscountRatesDetails">
        <link:definition>9955636 - Disclosure - Insurance contracts and private pension - Schedule of Discount Rates (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InsurancecontractsandprivatepensionScheduleofClaimsDevelopmentDetails" roleURI="http://itacunibanco.com/role/InsurancecontractsandprivatepensionScheduleofClaimsDevelopmentDetails">
        <link:definition>9955637 - Disclosure - Insurance contracts and private pension - Schedule of Claims Development (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairvalueScheduleofBreakdownofFairValueHierarchyLevelsDetails" roleURI="http://itacunibanco.com/role/FairvalueScheduleofBreakdownofFairValueHierarchyLevelsDetails">
        <link:definition>9955638 - Disclosure - Fair value - Schedule of Breakdown of Fair Value Hierarchy Levels (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairvalueScheduleofBreakdownofFairValueHierarchyLevelsforDerivativeAssetsandLiabilitiesDetails" roleURI="http://itacunibanco.com/role/FairvalueScheduleofBreakdownofFairValueHierarchyLevelsforDerivativeAssetsandLiabilitiesDetails">
        <link:definition>9955639 - Disclosure - Fair value - Schedule of Breakdown of Fair Value Hierarchy Levels for Derivative Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairvalueScheduleofLevel3RecurringFairValueChangesDetails" roleURI="http://itacunibanco.com/role/FairvalueScheduleofLevel3RecurringFairValueChangesDetails">
        <link:definition>9955640 - Disclosure - Fair value - Schedule of Level 3 Recurring Fair Value Changes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairvalueScheduleofSensitivityAnalysesOperationsDetails" roleURI="http://itacunibanco.com/role/FairvalueScheduleofSensitivityAnalysesOperationsDetails">
        <link:definition>9955641 - Disclosure - Fair value - Schedule of Sensitivity Analyses Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairvalueScheduleofEstimatedFairValueforFinancialAssetsandLiabilitiesDetails" roleURI="http://itacunibanco.com/role/FairvalueScheduleofEstimatedFairValueforFinancialAssetsandLiabilitiesDetails">
        <link:definition>9955642 - Disclosure - Fair value - Schedule of Estimated Fair Value for Financial Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairvalueNarrativeDetails" roleURI="http://itacunibanco.com/role/FairvalueNarrativeDetails">
        <link:definition>9955643 - Disclosure - Fair value - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ProvisionscontingentassetsandcontingentliabilitiesScheduleofCivilLaborandOtherRisksProvisionsDetails" roleURI="http://itacunibanco.com/role/ProvisionscontingentassetsandcontingentliabilitiesScheduleofCivilLaborandOtherRisksProvisionsDetails">
        <link:definition>9955644 - Disclosure - Provisions, contingent assets and contingent liabilities - Schedule of Civil, Labor and Other Risks Provisions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ProvisionscontingentassetsandcontingentliabilitiesScheduleofSocialSecurityProvisionsDetails" roleURI="http://itacunibanco.com/role/ProvisionscontingentassetsandcontingentliabilitiesScheduleofSocialSecurityProvisionsDetails">
        <link:definition>9955645 - Disclosure - Provisions, contingent assets and contingent liabilities - Schedule of Social Security Provisions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ProvisionscontingentassetsandcontingentliabilitiesNarrativeDetails" roleURI="http://itacunibanco.com/role/ProvisionscontingentassetsandcontingentliabilitiesNarrativeDetails">
        <link:definition>9955646 - Disclosure - Provisions, contingent assets and contingent liabilities - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ProvisionscontingentassetsandcontingentliabilitiesScheduleofGuaranteesofContingenciesProvisionsandLegalObligationsDetails" roleURI="http://itacunibanco.com/role/ProvisionscontingentassetsandcontingentliabilitiesScheduleofGuaranteesofContingenciesProvisionsandLegalObligationsDetails">
        <link:definition>9955647 - Disclosure - Provisions, contingent assets and contingent liabilities - Schedule of Guarantees of Contingencies, Provisions and Legal Obligations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationScheduleofOperatingSegmentsDetails" roleURI="http://itacunibanco.com/role/SegmentInformationScheduleofOperatingSegmentsDetails">
        <link:definition>9955648 - Disclosure - Segment Information - Schedule of Operating Segments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationNarrativeDetails" roleURI="http://itacunibanco.com/role/SegmentInformationNarrativeDetails">
        <link:definition>9955649 - Disclosure - Segment Information - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationScheduleofResultofNonCurrentAssetsandMainServicesandProductsbyGeographicRegionDetails" roleURI="http://itacunibanco.com/role/SegmentInformationScheduleofResultofNonCurrentAssetsandMainServicesandProductsbyGeographicRegionDetails">
        <link:definition>9955650 - Disclosure - Segment Information - Schedule of Result of Non-Current Assets and Main Services and Products by Geographic Region (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedpartiesScheduleofTransactionsBetweenRelatedPartiesDetails" roleURI="http://itacunibanco.com/role/RelatedpartiesScheduleofTransactionsBetweenRelatedPartiesDetails">
        <link:definition>9955651 - Disclosure - Related parties - Schedule of Transactions Between Related Parties (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedpartiesNarrativeDetails" roleURI="http://itacunibanco.com/role/RelatedpartiesNarrativeDetails">
        <link:definition>9955652 - Disclosure - Related parties - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedpartiesScheduleofCompensationandBenefitsofKeyManagementPersonnelDetails" roleURI="http://itacunibanco.com/role/RelatedpartiesScheduleofCompensationandBenefitsofKeyManagementPersonnelDetails">
        <link:definition>9955653 - Disclosure - Related parties - Schedule of Compensation and Benefits of Key Management Personnel (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofFinancialAssetsatAmortizedCostandatFairValueDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofFinancialAssetsatAmortizedCostandatFairValueDetails">
        <link:definition>9955654 - Disclosure - Risk and Capital Management - Schedule of Financial Assets at Amortized Cost and at Fair Value (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofMaximumExposureofFinancialAssetstoCreditRiskDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofMaximumExposureofFinancialAssetstoCreditRiskDetails">
        <link:definition>9955655 - Disclosure - Risk and Capital Management - Schedule of Maximum Exposure of Financial Assets to Credit Risk (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofLoanandLeaseOperationsDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofLoanandLeaseOperationsDetails">
        <link:definition>9955656 - Disclosure - Risk and Capital Management - Schedule of Loan and Lease Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofOtherFinancialAssetsDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofOtherFinancialAssetsDetails">
        <link:definition>9955657 - Disclosure - Risk and Capital Management - Schedule of Other Financial Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofBreakdownofIndicatorsofCreditQualityDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofBreakdownofIndicatorsofCreditQualityDetails">
        <link:definition>9955658 - Disclosure - Risk and Capital Management - Schedule of Breakdown of Indicators of Credit Quality (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofInternalRatingDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofInternalRatingDetails">
        <link:definition>9955659 - Disclosure - Risk and Capital Management - Schedule of Internal Rating (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofMaximumExposureofOtherFinancialAssetsbyTypeandClassificationofCreditRiskDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofMaximumExposureofOtherFinancialAssetsbyTypeandClassificationofCreditRiskDetails">
        <link:definition>9955660 - Disclosure - Risk and Capital Management - Schedule of Maximum Exposure of Other Financial Assets by Type and Classification of Credit Risk (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofFinancialAssetsIndividuallyEvaluatedClassifiedbyRatingDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofFinancialAssetsIndividuallyEvaluatedClassifiedbyRatingDetails">
        <link:definition>9955661 - Disclosure - Risk and Capital Management - Schedule of Financial Assets Individually Evaluated Classified by Rating (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofCollateralforLoansandFinancialLeaseOperationsDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofCollateralforLoansandFinancialLeaseOperationsDetails">
        <link:definition>9955662 - Disclosure - Risk and Capital Management - Schedule of Collateral for Loans and Financial Lease Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementNarrativeDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementNarrativeDetails">
        <link:definition>9955663 - Disclosure - Risk and Capital Management - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleOfVarTotalHistoricalSimulationDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleOfVarTotalHistoricalSimulationDetails">
        <link:definition>9955664 - Disclosure - Risk and Capital Management - Schedule Of Var Total - Historical Simulation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofPositionofAccountsSubjecttoInterestRateRiskDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofPositionofAccountsSubjecttoInterestRateRiskDetails">
        <link:definition>9955665 - Disclosure - Risk and Capital Management - Schedule of Position of Accounts Subject to Interest Rate Risk (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofPrimarySourceofFundingDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofPrimarySourceofFundingDetails">
        <link:definition>9955666 - Disclosure - Risk and Capital Management - Schedule of Primary Source of Funding (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofOffBalanceCommitmentsDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofOffBalanceCommitmentsDetails">
        <link:definition>9955667 - Disclosure - Risk and Capital Management - Schedule of Off Balance Commitments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofContractualMaturitiesofAssetsandLiabilitiesExplanatoryDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofContractualMaturitiesofAssetsandLiabilitiesExplanatoryDetails">
        <link:definition>9955668 - Disclosure - Risk and Capital Management - Schedule of Contractual Maturities of Assets and Liabilities Explanatory (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofCompositionofCapitalAdequacyDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofCompositionofCapitalAdequacyDetails">
        <link:definition>9955669 - Disclosure - Risk and Capital Management - Schedule of Composition of Capital Adequacy (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofRiskWeightedAssetsDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofRiskWeightedAssetsDetails">
        <link:definition>9955670 - Disclosure - Risk and Capital Management - Schedule of Risk Weighted Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofSensitivityAnalysisDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofSensitivityAnalysisDetails">
        <link:definition>9955671 - Disclosure - Risk and Capital Management - Schedule of Sensitivity Analysis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RiskandCapitalManagementScheduleofMaturityAnalysisofEstimatedUndiscountedFutureCashFlowsDetails" roleURI="http://itacunibanco.com/role/RiskandCapitalManagementScheduleofMaturityAnalysisofEstimatedUndiscountedFutureCashFlowsDetails">
        <link:definition>9955672 - Disclosure - Risk and Capital Management - Schedule of Maturity Analysis of Estimated Undiscounted Future Cash Flows (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementaryinformationDetails" roleURI="http://itacunibanco.com/role/SupplementaryinformationDetails">
        <link:definition>9955673 - Disclosure - Supplementary information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequenteventDetails" roleURI="http://itacunibanco.com/role/SubsequenteventDetails">
        <link:definition>9955674 - Disclosure - Subsequent event (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="itub_CentralBankOfBrazilDeposits" abstract="false" name="CentralBankOfBrazilDeposits" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InvestmentInSecuritiesAtAmortisedCost" abstract="false" name="InvestmentInSecuritiesAtAmortisedCost" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LoanOperationsAndLeaseOperations" abstract="false" name="LoanOperationsAndLeaseOperations" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CommitmentsReleased" abstract="false" name="CommitmentsReleased" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialAssetAtFairValueThroughOtherComprehensiveIncome" abstract="false" name="FinancialAssetAtFairValueThroughOtherComprehensiveIncome" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SecuritiesAtFairValueThroughOtherComprehensiveIncome" abstract="false" name="SecuritiesAtFairValueThroughOtherComprehensiveIncome" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AtFairValueThroughProfitOrLoss" abstract="false" name="AtFairValueThroughProfitOrLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SecuritiesAtFairValueThroughProfitOrLoss" abstract="false" name="SecuritiesAtFairValueThroughProfitOrLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DerivativeFinancialAsset" abstract="false" name="DerivativeFinancialAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OthersFinancialAssets" abstract="false" name="OthersFinancialAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TaxAssets" abstract="false" name="TaxAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeTaxAndSocialContributionCurrentAssets" abstract="false" name="IncomeTaxAndSocialContributionCurrentAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeTaxAndSocialContributionDeferredAssets" abstract="false" name="IncomeTaxAndSocialContributionDeferredAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeTaxAndSocialContributionOtherAssets" abstract="false" name="IncomeTaxAndSocialContributionOtherAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InvestmentsInAssociatesAndJointVentures" abstract="false" name="InvestmentsInAssociatesAndJointVentures" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterbankMarketFundFinancing" abstract="false" name="InterbankMarketFundFinancing" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DerivativeFinancialLiabilitiesAtFairValueThroughProfitOrLoss" abstract="false" name="DerivativeFinancialLiabilitiesAtFairValueThroughProfitOrLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_StructuredNotes" abstract="false" name="StructuredNotes" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherFinancialLiabilitiesAtFairValueThroughProfitOrLoss" abstract="false" name="OtherFinancialLiabilitiesAtFairValueThroughProfitOrLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ProvisionsForFinancialGuaranteesCreditCommitmentsAndCreditsToBeReleased" abstract="false" name="ProvisionsForFinancialGuaranteesCreditCommitmentsAndCreditsToBeReleased" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TaxLiabilities" abstract="false" name="TaxLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeTaxAndSocialContributionCurrentLiabilities" abstract="false" name="IncomeTaxAndSocialContributionCurrentLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeTaxAndSocialContributionDeferredLiabilities" abstract="false" name="IncomeTaxAndSocialContributionDeferredLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherTaxLiabilities" abstract="false" name="OtherTaxLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ProfitReserves" abstract="false" name="ProfitReserves" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestAndSimilarIncomeOfFinancialAssetsAtAmortizedCostAndAtFairValueThroughOtherComprehensiveIncome" abstract="false" name="InterestAndSimilarIncomeOfFinancialAssetsAtAmortizedCostAndAtFairValueThroughOtherComprehensiveIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestAndSimilarExpenses" abstract="false" name="InterestAndSimilarExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeOfFinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLoss" abstract="false" name="IncomeOfFinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CommissionsAndBankingFees" abstract="false" name="CommissionsAndBankingFees" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeFromInsuranceContractsAndPrivatePension" abstract="false" name="IncomeFromInsuranceContractsAndPrivatePension" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OperatingIncomeFromInsuranceContractsAndPrivatePensionNetOfReinsurance" abstract="false" name="OperatingIncomeFromInsuranceContractsAndPrivatePensionNetOfReinsurance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialIncomeFromInsuranceContractsAndPrivatePensionNetOfReinsurance" abstract="false" name="FinancialIncomeFromInsuranceContractsAndPrivatePensionNetOfReinsurance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeFromFinancialAssetsRelatedToInsuranceContractsAndPrivatePension" abstract="false" name="IncomeFromFinancialAssetsRelatedToInsuranceContractsAndPrivatePension" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ExpectedLossFromFinancialAssets" abstract="false" name="ExpectedLossFromFinancialAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ExpectedLossWithLoanOperationsAndLeaseOperations" abstract="false" name="ExpectedLossWithLoanOperationsAndLeaseOperations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ExpectedLossWithOtherFinancialAssets" abstract="false" name="ExpectedLossWithOtherFinancialAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OperatingRevenuesNetOfExpectedLossesFromFinancialAssets" abstract="false" name="OperatingRevenuesNetOfExpectedLossesFromFinancialAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherOperatingIncomeExpenses" abstract="false" name="OtherOperatingIncomeExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_GeneralAndAdministrativeExpense2" abstract="false" name="GeneralAndAdministrativeExpense2" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeLossBeforeIncomeTaxAndSocialContribution" abstract="false" name="IncomeLossBeforeIncomeTaxAndSocialContribution" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CurrentIncomeTaxAndSocialContribution" abstract="false" name="CurrentIncomeTaxAndSocialContribution" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DeferredIncomeTaxAndSocialContribution" abstract="false" name="DeferredIncomeTaxAndSocialContribution" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherComprehensiveIncomeBeforeTaxAvailableforsaleFinancialAsset" abstract="false" name="OtherComprehensiveIncomeBeforeTaxAvailableforsaleFinancialAsset" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeTaxRelatingToAvailableforsaleFinancialAssetOfOtherComprehensiveIncome" abstract="false" name="IncomeTaxRelatingToAvailableforsaleFinancialAssetOfOtherComprehensiveIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_GainsLossesTransferredToIncomeStatement" abstract="false" name="GainsLossesTransferredToIncomeStatement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CapitalReservesMember" abstract="false" name="CapitalReservesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ProfitReserveMember" abstract="false" name="ProfitReserveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InsuranceContractsAndPrivatePensionMember" abstract="false" name="InsuranceContractsAndPrivatePensionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CapitalizationByReserves" abstract="false" name="CapitalizationByReserves" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DividendsInPaid" abstract="false" name="DividendsInPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestOnCapitalDistributedToOwners" abstract="false" name="InterestOnCapitalDistributedToOwners" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DividendsInterestOnCapitalDeclaredAfterPreviousPeriod" abstract="false" name="DividendsInterestOnCapitalDeclaredAfterPreviousPeriod" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TransactionsRelatedToUnclaimedDividendsAndInterestOnCapitalWithOwnersOfEntity" abstract="false" name="TransactionsRelatedToUnclaimedDividendsAndInterestOnCapitalWithOwnersOfEntity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CorporateReorgainzationWithOwnerOfEntity" abstract="false" name="CorporateReorgainzationWithOwnerOfEntity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalComprehensiveIncome" abstract="false" name="TotalComprehensiveIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AppropriationsOfReserveAbstract" abstract="true" name="AppropriationsOfReserveAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_IncreaseDecreaseThroughTransferToLegalReserveEquity" abstract="false" name="IncreaseDecreaseThroughTransferToLegalReserveEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustedNetIncome" abstract="false" name="AdjustedNetIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForExpectedLossFromFinancialAssetsAndClaims" abstract="false" name="AdjustmentsForExpectedLossFromFinancialAssetsAndClaims" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForInterestAndForeignExchangeExpenseFromOperationsWithSubordinatedDebt" abstract="false" name="AdjustmentsForInterestAndForeignExchangeExpenseFromOperationsWithSubordinatedDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForUpdateChargeExpenseProvisionForCivilLaborFiscalAndLegalObligations" abstract="false" name="AdjustmentsForUpdateChargeExpenseProvisionForCivilLaborFiscalAndLegalObligations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentForRevenueFromUpdateChargesOnDepositsInEscrow" abstract="false" name="AdjustmentForRevenueFromUpdateChargesOnDepositsInEscrow" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestRevenueAndForeignExchangeIncomeForFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" abstract="false" name="InterestRevenueAndForeignExchangeIncomeForFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestRevenueAndForeignExchangeIncomeForFinancialAssetsMeasuredAtAmortisedCost" abstract="false" name="InterestRevenueAndForeignExchangeIncomeForFinancialAssetsMeasuredAtAmortisedCost" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForGainLossOnSaleOfInvestmentsAndFixedAssets" abstract="false" name="AdjustmentsForGainLossOnSaleOfInvestmentsAndFixedAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncreaseDecreaseInAssetsAbstract" abstract="true" name="IncreaseDecreaseInAssetsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_AdjustmentsForIncreaseDecreaseInInterbankDeposits" abstract="false" name="AdjustmentsForIncreaseDecreaseInInterbankDeposits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForSecuritiesPurchasedUnderAgreementsToResell" abstract="false" name="AdjustmentsForSecuritiesPurchasedUnderAgreementsToResell" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForCentralBankOfBrazilDeposits" abstract="false" name="AdjustmentsForCentralBankOfBrazilDeposits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForLoanOperations" abstract="false" name="AdjustmentsForLoanOperations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForIncreaseDecreaseInDerivativeAssetsLiabilities" abstract="false" name="AdjustmentsForIncreaseDecreaseInDerivativeAssetsLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForFinancialAssetsDesignatedAtFairValueThroughProfitOrLoss" abstract="false" name="AdjustmentsForFinancialAssetsDesignatedAtFairValueThroughProfitOrLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForOtherFinancialAssets" abstract="false" name="AdjustmentsForOtherFinancialAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForOtherTaxAssets" abstract="false" name="AdjustmentsForOtherTaxAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DecreaseIncreaseInLiabilitiesAbstract" abstract="true" name="DecreaseIncreaseInLiabilitiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_AdjustmentForIncreaseDecreaseInDeposit" abstract="false" name="AdjustmentForIncreaseDecreaseInDeposit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForIncreaseDecreaseInDepositsReceivedUnderSecuritiesRepurchaseAgreements" abstract="false" name="AdjustmentsForIncreaseDecreaseInDepositsReceivedUnderSecuritiesRepurchaseAgreements" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForIncreaseDecreaseInFundsFromInterbankMarkets" abstract="false" name="AdjustmentsForIncreaseDecreaseInFundsFromInterbankMarkets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForIncreaseDecreaseInFundsFromInstitutionalMarkets" abstract="false" name="AdjustmentsForIncreaseDecreaseInFundsFromInstitutionalMarkets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentForIncreaseDecreaseInOtherFinancialLiability" abstract="false" name="AdjustmentForIncreaseDecreaseInOtherFinancialLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesAtFairValueThroughProfitOrLoss" abstract="false" name="AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesAtFairValueThroughProfitOrLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DecreaseIncreaseInInsuranceContractsAndPrivatePension" abstract="false" name="DecreaseIncreaseInInsuranceContractsAndPrivatePension" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForIncreaseDecreaseInProvision" abstract="false" name="AdjustmentsForIncreaseDecreaseInProvision" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForIncreaseDecreaseInTaxLiabilities" abstract="false" name="AdjustmentsForIncreaseDecreaseInTaxLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsIncomeTaxAndSocialContributionPaidClassifiedAsOperatingActivities" abstract="false" name="AdjustmentsIncomeTaxAndSocialContributionPaidClassifiedAsOperatingActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestAndDividendsReceivedClassifiedAsInvestingActivities" abstract="false" name="InterestAndDividendsReceivedClassifiedAsInvestingActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TerminationOfIntangibleAssetAgreements" abstract="false" name="TerminationOfIntangibleAssetAgreements" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PurchaseCashFromTheSaleOfFinancialAssetsAtFairValueThroughOtherComprehensiveIncome" abstract="false" name="PurchaseCashFromTheSaleOfFinancialAssetsAtFairValueThroughOtherComprehensiveIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PurchaseOfFinancialAssetsAtAmortisedCost" abstract="false" name="PurchaseOfFinancialAssetsAtAmortisedCost" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SubordinatedDebtObligationsRaisings" abstract="false" name="SubordinatedDebtObligationsRaisings" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SubordinatedDebtObligationsRedemptions" abstract="false" name="SubordinatedDebtObligationsRedemptions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ProceedsFromContributionsOfNoncontrollingInterest" abstract="false" name="ProceedsFromContributionsOfNoncontrollingInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AcquisitionOfTreasuryShare" abstract="false" name="AcquisitionOfTreasuryShare" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DividendsAndInterestPaidToNoncontrollingInterestsClassifiedAsFinancingActivities" abstract="false" name="DividendsAndInterestPaidToNoncontrollingInterestsClassifiedAsFinancingActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DividendsAndInterestPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" abstract="false" name="DividendsAndInterestPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterbankDeposits" abstract="false" name="InterbankDeposits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SecuritiesPurchasedUnderAgreementsToResell2" abstract="false" name="SecuritiesPurchasedUnderAgreementsToResell2" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdditionalInformationOnCashFlowsAbstract" abstract="true" name="AdditionalInformationOnCashFlowsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_NonCashTransactionsAbstract" abstract="true" name="NonCashTransactionsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_DividendsAndInterestOnCapitalDeclaredAndNotYetPaid" abstract="false" name="DividendsAndInterestOnCapitalDeclaredAndNotYetPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OperationsAbstract" abstract="true" name="OperationsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_OperationsTextBlock" abstract="false" name="OperationsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_MaterialAccountingPoliciesAbstract" abstract="true" name="MaterialAccountingPoliciesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_MaterialAccountingPoliciesTextBlock" abstract="false" name="MaterialAccountingPoliciesTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_InterbankDepositsAndSecuritiesPurchasedUnderAgreementsToResellAbstract" abstract="true" name="InterbankDepositsAndSecuritiesPurchasedUnderAgreementsToResellAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_InterbankDepositsAndSecuritiesPurchasedUnderAgreementsToResellTextBlock" abstract="false" name="InterbankDepositsAndSecuritiesPurchasedUnderAgreementsToResellTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_FinancialAssetsAtFairValueThroughProfitOrLossAndDesignatedAtFairValueThroughProfitOrLossSecuritiesAbstract" abstract="true" name="FinancialAssetsAtFairValueThroughProfitOrLossAndDesignatedAtFairValueThroughProfitOrLossSecuritiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_FinancialAssetsAtFairValueThroughProfitOrLossAndDesignatedAtFairValueThroughProfitOrLossSecuritiesTextBlock" abstract="false" name="FinancialAssetsAtFairValueThroughProfitOrLossAndDesignatedAtFairValueThroughProfitOrLossSecuritiesTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_HedgeAccountingAbstract" abstract="true" name="HedgeAccountingAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeSecuritiesAbstract" abstract="true" name="FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeSecuritiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeSecuritiesTextBlock" abstract="false" name="FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeSecuritiesTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_FinancialAssetsAtAmortizedCostSecuritiesAbstract" abstract="true" name="FinancialAssetsAtAmortizedCostSecuritiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_LoanAndLeaseOperationsAbstract" abstract="true" name="LoanAndLeaseOperationsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_DisclosureOfLoansAndLeaseOperationsPortfolioExplanatoryTextBlock" abstract="false" name="DisclosureOfLoansAndLeaseOperationsPortfolioExplanatoryTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_FixedAssetsAbstract" abstract="true" name="FixedAssetsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_FixedAssetsTextBlock" abstract="false" name="FixedAssetsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_GoodwillAndIntangibleAssetsAbstract" abstract="true" name="GoodwillAndIntangibleAssetsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_DisclosureOfIntangibleAssetAndGoodwillExplanatoryTextBlock" abstract="false" name="DisclosureOfIntangibleAssetAndGoodwillExplanatoryTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_OtherAssetsAndLiabilitiesAbstract" abstract="true" name="OtherAssetsAndLiabilitiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_OtherAssetsAndLiabilitiesTextBlock" abstract="false" name="OtherAssetsAndLiabilitiesTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_InterestAndSimilarIncomeAndExpensesAndIncomeOfFinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLossAbstract" abstract="true" name="InterestAndSimilarIncomeAndExpensesAndIncomeOfFinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLossAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_InterestAndSimilarIncomeAndExpensesAndIncomeOfFinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLossTextBlock" abstract="false" name="InterestAndSimilarIncomeAndExpensesAndIncomeOfFinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLossTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_CommissionsAndBankingFeesAbstract" abstract="true" name="CommissionsAndBankingFeesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_CommissionsAndBankingFeesTextBlock" abstract="false" name="CommissionsAndBankingFeesTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_TaxesAbstract" abstract="true" name="TaxesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_DisclosureOfTaxExplanatoryTextBlock" abstract="false" name="DisclosureOfTaxExplanatoryTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_InsuranceContractsAndPrivatePensionAbstract" abstract="true" name="InsuranceContractsAndPrivatePensionAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_DisclosureOfInsuranceContractsAndPrivatePensionExplanatoryTextBlock" abstract="false" name="DisclosureOfInsuranceContractsAndPrivatePensionExplanatoryTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_SegmentInformationAbstract" abstract="true" name="SegmentInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_DisclosureOfEntityReportableSegmentExplanatoryTextBlock" abstract="false" name="DisclosureOfEntityReportableSegmentExplanatoryTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_RiskAndCapitalManagementAbstract" abstract="true" name="RiskAndCapitalManagementAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_RiskAndCapitalManagementTextBlock" abstract="false" name="RiskAndCapitalManagementTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_SupplementaryInformationAbstract" abstract="true" name="SupplementaryInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_SupplementaryInformationTextBlock" abstract="false" name="SupplementaryInformationTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_BasisOfPreparationPolicyTextBlock" abstract="false" name="BasisOfPreparationPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_AccountingPoliciesCriticalEstimatesAndMaterialJudgmentsPolicyTextBlock" abstract="false" name="AccountingPoliciesCriticalEstimatesAndMaterialJudgmentsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ConsolidationsPolicyTextBlock" abstract="false" name="ConsolidationsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_FinancialAssetsAndLiabilitiesPolicyTextBlock" abstract="false" name="FinancialAssetsAndLiabilitiesPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_SubsequentMeasurementOfFinancialInstrumentsPolicyTextBlock" abstract="false" name="SubsequentMeasurementOfFinancialInstrumentsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_DerivativesAndUseOfHedgeAccountingPolicyTextBlock" abstract="false" name="DerivativesAndUseOfHedgeAccountingPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_OtherNonFinancialAssetsPolicyTextBlock" abstract="false" name="OtherNonFinancialAssetsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_DescriptionOfAccountingPolicyForProvisionsContingentAssetsAndContingentLiabilitiesExplanatoryPolicyTextBlock" abstract="false" name="DescriptionOfAccountingPolicyForProvisionsContingentAssetsAndContingentLiabilitiesExplanatoryPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_CapitalCompensationPolicyTextBlock" abstract="false" name="CapitalCompensationPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfConsolidatedCompaniesTableTextBlock" abstract="false" name="ScheduleOfConsolidatedCompaniesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfInterbankDepositsAndSecuritiesTableTextBlock" abstract="false" name="ScheduleOfInterbankDepositsAndSecuritiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfFinancialAssetsAndLiabilitiesTableTextBlock" abstract="false" name="ScheduleOfFinancialAssetsAndLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfFairValuePerMaturityOfFinancialAssetsTableTextBlock" abstract="false" name="ScheduleOfFairValuePerMaturityOfFinancialAssetsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfCompositionOfDerivativesByIndexTableTextBlock" abstract="false" name="ScheduleOfCompositionOfDerivativesByIndexTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfNotionalAmountOfPurchasedCreditDerivativesTableTextBlock" abstract="false" name="ScheduleOfNotionalAmountOfPurchasedCreditDerivativesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfHedgeAccountingTableTextBlock" abstract="false" name="ScheduleOfHedgeAccountingTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfNetInvestmentInForeignOperationsTableTextBlock" abstract="false" name="ScheduleOfNetInvestmentInForeignOperationsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfHedgeInstrumentsTableTextBlock" abstract="false" name="ScheduleOfHedgeInstrumentsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfManagementStrategyGuidelinesTableTextBlock" abstract="false" name="ScheduleOfManagementStrategyGuidelinesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfTheEffectOfHedgeAccountingOnTheFinancialPositionAndPerformanceTableTextBlock" abstract="false" name="ScheduleOfTheEffectOfHedgeAccountingOnTheFinancialPositionAndPerformanceTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfFairValueAndCorrespondingGrossCarryingAmountOfFinancialAssetsAtFairValueThroughOtherComprehensiveIncomeSecuritiesAssetsTableTextBlock" abstract="false" name="ScheduleOfFairValueAndCorrespondingGrossCarryingAmountOfFinancialAssetsAtFairValueThroughOtherComprehensiveIncomeSecuritiesAssetsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfGrossCarryingAmountAndFairValueOfFinancialAssetsThroughOtherComprehensiveIncomeSecuritiesByMaturityTableTextBlock" abstract="false" name="ScheduleOfGrossCarryingAmountAndFairValueOfFinancialAssetsThroughOtherComprehensiveIncomeSecuritiesByMaturityTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfReconciliationOfExpectedLossForFinancialAssetsAtFairValueThroughOtherComprehensiveInstrumentSecuritiesSegregatedByStagesTableTextBlock" abstract="false" name="ScheduleOfReconciliationOfExpectedLossForFinancialAssetsAtFairValueThroughOtherComprehensiveInstrumentSecuritiesSegregatedByStagesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfAmortizedCostOfFinancialAssetsAtAmortizedCostTableTextBlock" abstract="false" name="ScheduleOfAmortizedCostOfFinancialAssetsAtAmortizedCostTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfReconciliationOfExpectedLossTableTextBlock" abstract="false" name="ScheduleOfReconciliationOfExpectedLossTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfCompositionOfCarryingAmountOfLoanOperationsAndLeaseOperationsByTypeSectorOfDebtorMaturityAndConcentrationTableTextBlock" abstract="false" name="ScheduleOfCompositionOfCarryingAmountOfLoanOperationsAndLeaseOperationsByTypeSectorOfDebtorMaturityAndConcentrationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfReconciliationOfGrossPortfolioOfLoansTableTextBlock" abstract="false" name="ScheduleOfReconciliationOfGrossPortfolioOfLoansTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfReconciliationOfExpectedLoanLossesForLoanOperationsAndLeaseOperationsTableTextBlock" abstract="false" name="ScheduleOfReconciliationOfExpectedLoanLossesForLoanOperationsAndLeaseOperationsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfAnalysisOfPresentValueOfMinimumFuturePaymentsReceivableFromFinanceLeasesByMaturityTableTextBlock" abstract="false" name="ScheduleOfAnalysisOfPresentValueOfMinimumFuturePaymentsReceivableFromFinanceLeasesByMaturityTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleSecuritizationOrTransferOfFinancialAssetsTableTextBlock" abstract="false" name="ScheduleSecuritizationOrTransferOfFinancialAssetsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfMainInvestmentsTableTextBlock" abstract="false" name="ScheduleOfMainInvestmentsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfLeaseLiabilitiesUndiscountedTableTextBlock" abstract="false" name="ScheduleOfLeaseLiabilitiesUndiscountedTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfAmountsRecognizedInStatementOfNetIncomeLossTableTextBlock" abstract="false" name="ScheduleOfAmountsRecognizedInStatementOfNetIncomeLossTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfBreakdownOfDepositsTableTextBlock" abstract="false" name="ScheduleOfBreakdownOfDepositsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_DisclosureOfDetailedInformationAboutBreakDownOfSecuritiesSoldUnderRepurchaseAgreementExplanatoryTableTextBlock" abstract="false" name="DisclosureOfDetailedInformationAboutBreakDownOfSecuritiesSoldUnderRepurchaseAgreementExplanatoryTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfInterbankMarketDebtTableTextBlock" abstract="false" name="ScheduleOfInterbankMarketDebtTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfInstitutionalMarketDebtTableTextBlock" abstract="false" name="ScheduleOfInstitutionalMarketDebtTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfSubordinatedDebtIncludingPerpetualDebtsTableTextBlock" abstract="false" name="ScheduleOfSubordinatedDebtIncludingPerpetualDebtsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfStockholdersCompensationTableTextBlock" abstract="false" name="ScheduleOfStockholdersCompensationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfChangeInShareBasedVariableCompensationTableTextBlock" abstract="false" name="ScheduleOfChangeInShareBasedVariableCompensationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfFinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLossTableTextBlock" abstract="false" name="ScheduleOfFinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLossTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfCommissionsAndBankingFeesTableTextBlock" abstract="false" name="ScheduleOfCommissionsAndBankingFeesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfGeneralAndAdministrativeExpensesTableTextBlock" abstract="false" name="ScheduleOfGeneralAndAdministrativeExpensesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfCalculationForTaxRatesTableTextBlock" abstract="false" name="ScheduleOfCalculationForTaxRatesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfBreakdownOfIncomeTaxAndSocialContributionExpenseTableTextBlock" abstract="false" name="ScheduleOfBreakdownOfIncomeTaxAndSocialContributionExpenseTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfTaxLiabilitiesTableTextBlock" abstract="false" name="ScheduleOfTaxLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfDilutedEarningsPerShareTableTextBlock" abstract="false" name="ScheduleOfDilutedEarningsPerShareTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfMainAssumptionsUsedInActuarialValuationOfRetirementPlansTableTextBlock" abstract="false" name="ScheduleOfMainAssumptionsUsedInActuarialValuationOfRetirementPlansTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfDefinedBenefitContributionTableTextBlock" abstract="false" name="ScheduleOfDefinedBenefitContributionTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfMaturityProfileOfDefinedBenefitLiabilitiesTableTextBlock" abstract="false" name="ScheduleOfMaturityProfileOfDefinedBenefitLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfSensitivityOfDefinedBenefitObligationTableTextBlock" abstract="false" name="ScheduleOfSensitivityOfDefinedBenefitObligationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfInsuranceContractsAndPrivatePensionPortfoliosAndMeasurementApproachTableTextBlock" abstract="false" name="ScheduleOfInsuranceContractsAndPrivatePensionPortfoliosAndMeasurementApproachTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfReconciliationOfInsuranceTableTextBlock" abstract="false" name="ScheduleOfReconciliationOfInsuranceTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfReconciliationOfInsuranceOneTableTextBlock" abstract="false" name="ScheduleOfReconciliationOfInsuranceOneTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfReconciliationOfPrivatePensionTableTextBlock" abstract="false" name="ScheduleOfReconciliationOfPrivatePensionTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfReconciliationOfPrivatePensionOneTableTextBlock" abstract="false" name="ScheduleOfReconciliationOfPrivatePensionOneTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfContractualServiceMarginTableTextBlock" abstract="false" name="ScheduleOfContractualServiceMarginTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfDiscountRatesTableTextBlock" abstract="false" name="ScheduleOfDiscountRatesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfClaimsDevelopmentTableTextBlock" abstract="false" name="ScheduleOfClaimsDevelopmentTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfBreakdownOfFairValueHierarchyLevelsTableTextBlock" abstract="false" name="ScheduleOfBreakdownOfFairValueHierarchyLevelsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfBreakdownOfFairValueHierarchyLevelsForDerivativeAssetsAndLiabilitiesTableTextBlock" abstract="false" name="ScheduleOfBreakdownOfFairValueHierarchyLevelsForDerivativeAssetsAndLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfLevel3RecurringFairValueChangesTableTextBlock" abstract="false" name="ScheduleOfLevel3RecurringFairValueChangesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfSensitivityAnalysesOperationsTableTextBlock" abstract="false" name="ScheduleOfSensitivityAnalysesOperationsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfEstimatedFairValueForFinancialAssetsAndLiabilitiesTableTextBlock" abstract="false" name="ScheduleOfEstimatedFairValueForFinancialAssetsAndLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfSocialSecurityProvisionsTableTextBlock" abstract="false" name="ScheduleOfSocialSecurityProvisionsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfOperatingSegmentsTableTextBlock" abstract="false" name="ScheduleOfOperatingSegmentsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfFinancialAssetsAtAmortizedCostAndAtFairValueTableTextBlock" abstract="false" name="ScheduleOfFinancialAssetsAtAmortizedCostAndAtFairValueTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfLoanAndLeaseOperationsTableTextBlock" abstract="false" name="ScheduleOfLoanAndLeaseOperationsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfOtherFinancialAssetsTableTextBlock" abstract="false" name="ScheduleOfOtherFinancialAssetsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfBreakdownOfIndicatorsOfCreditQualityTableTextBlock" abstract="false" name="ScheduleOfBreakdownOfIndicatorsOfCreditQualityTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfInternalRatingTableTextBlock" abstract="false" name="ScheduleOfInternalRatingTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfMaximumExposureOfOtherFinancialAssetsByTypeAndClassificationOfCreditRiskTableTextBlock" abstract="false" name="ScheduleOfMaximumExposureOfOtherFinancialAssetsByTypeAndClassificationOfCreditRiskTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfFinancialAssetsIndividuallyEvaluatedClassifiedByRatingTableTextBlock" abstract="false" name="ScheduleOfFinancialAssetsIndividuallyEvaluatedClassifiedByRatingTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfCollateralForLoansAndFinancialLeaseOperationsTableTextBlock" abstract="false" name="ScheduleOfCollateralForLoansAndFinancialLeaseOperationsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfVarTotalHistoricalSimulationTableTextBlock" abstract="false" name="ScheduleOfVarTotalHistoricalSimulationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfPositionOfAccountsSubjectToInterestRateRiskTableTextBlock" abstract="false" name="ScheduleOfPositionOfAccountsSubjectToInterestRateRiskTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfPrimarySourceOfFundingTableTextBlock" abstract="false" name="ScheduleOfPrimarySourceOfFundingTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfOffBalanceCommitmentsTableTextBlock" abstract="false" name="ScheduleOfOffBalanceCommitmentsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_DisclosureOfContractualMaturitiesOfAssetsAndLiabilitiesExplanatoryTableTextBlock" abstract="false" name="DisclosureOfContractualMaturitiesOfAssetsAndLiabilitiesExplanatoryTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfCompositionOfCapitalAdequacyTableTextBlock" abstract="false" name="ScheduleOfCompositionOfCapitalAdequacyTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfRiskWeightedAssetsTableTextBlock" abstract="false" name="ScheduleOfRiskWeightedAssetsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ScheduleOfSensitivityAnalysisTableTextBlock" abstract="false" name="ScheduleOfSensitivityAnalysisTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="itub_ItausaInvestimentosSAMember" abstract="false" name="ItausaInvestimentosSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_NumberOfCountriesCompanyOperatesIn" abstract="false" name="NumberOfCountriesCompanyOperatesIn" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="itub_NumberOfSegmentsOperating" abstract="false" name="NumberOfSegmentsOperating" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="itub_EquityNetOfTaxPercentageMember" abstract="true" name="EquityNetOfTaxPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_StockholdersEquityNetOfTaxPercentage" abstract="false" name="StockholdersEquityNetOfTaxPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="itub_EstimatedExpectedCreditLossWriteOffPeriod" abstract="false" name="EstimatedExpectedCreditLossWriteOffPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="itub_ChangeInAccountingEstimateGeneratedImpact" abstract="false" name="ChangeInAccountingEstimateGeneratedImpact" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ChangeInAccountingEstimateGeneratedImpactNetOfTaxes" abstract="false" name="ChangeInAccountingEstimateGeneratedImpactNetOfTaxes" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_BancoItauConsignadoSAMember" abstract="true" name="BancoItauConsignadoSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BancoItaucardSAMember" abstract="true" name="BancoItaucardSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CiaItaudeCapitalizacaoMember" abstract="true" name="CiaItaudeCapitalizacaoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DibensLeasingArrendamentoMercantilMember" abstract="true" name="DibensLeasingArrendamentoMercantilMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinanceiraItauCBDSACreditoFinanciamentoeInvestimentoMember" abstract="true" name="FinanceiraItauCBDSACreditoFinanciamentoeInvestimentoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_HipercardBancoMultiploSAMember" abstract="true" name="HipercardBancoMultiploSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ItauCorretoradeValoresSAMember" abstract="true" name="ItauCorretoradeValoresSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ItauSegurosSAMember" abstract="true" name="ItauSegurosSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ItauUnibancoSaMember" abstract="true" name="ItauUnibancoSaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ItauVidaePrevidenciaSAMember" abstract="true" name="ItauVidaePrevidenciaSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LuizacredSASociedadedeCreditoFinanciamentoeInvestimentoMember" abstract="true" name="LuizacredSASociedadedeCreditoFinanciamentoeInvestimentoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RedecardInstituioDePagamentoS.a.Member" abstract="true" name="RedecardInstituioDePagamentoS.a.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BancoItauChileMember" abstract="false" name="BancoItauChileMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BancoItauParaguaySAMember" abstract="true" name="BancoItauParaguaySAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BancoItauSuisseSAMember" abstract="true" name="BancoItauSuisseSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BancoItauUruguaySAMember" abstract="true" name="BancoItauUruguaySAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ItauBankLtdMember" abstract="true" name="ItauBankLtdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ItauBBAInternationalPlcMember" abstract="true" name="ItauBBAInternationalPlcMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ItauBBAUSASecuritiesIncMember" abstract="true" name="ItauBBAUSASecuritiesIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ItauColombiaS.A.Member" abstract="true" name="ItauColombiaS.A.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ZupITServicosemTecnologiaeInovacaoS.A.Member" abstract="false" name="ZupITServicosemTecnologiaeInovacaoS.A.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ItauUnibancoHoldingMember" abstract="false" name="ItauUnibancoHoldingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AvenueHoldingCaymanLtdMember" abstract="false" name="AvenueHoldingCaymanLtdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AvenueHoldingCaymanLtdSecondPhaseOfAcquisitionMember" abstract="true" name="AvenueHoldingCaymanLtdSecondPhaseOfAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CapitalAmount" abstract="false" name="CapitalAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PercentageOfVotingEquityInterestsAcquires" abstract="false" name="PercentageOfVotingEquityInterestsAcquires" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_SharePurchaseAgreementNumberOfPhases" abstract="false" name="SharePurchaseAgreementNumberOfPhases" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="itub_SharePurchaseAgreementTerm" abstract="false" name="SharePurchaseAgreementTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="itub_InterbankDepositsAndSecuritiesPurchasedUnderAgreementsToResellMember" abstract="true" name="InterbankDepositsAndSecuritiesPurchasedUnderAgreementsToResellMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CollateralHeldUnderAgreementToResell" abstract="false" name="CollateralHeldUnderAgreementToResell" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CollateralRepledgeUnderAgreementToResell" abstract="false" name="CollateralRepledgeUnderAgreementToResell" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AssetsHeldAsCollateralNotPermittedToBeSoldOrRepledgedAtFairValue" abstract="false" name="AssetsHeldAsCollateralNotPermittedToBeSoldOrRepledgedAtFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CollateralSoldUnderAgreementToResell" abstract="false" name="CollateralSoldUnderAgreementToResell" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterbankDepositsAndSecuritiesPurchasedUnderAgreementsToResell" abstract="false" name="InterbankDepositsAndSecuritiesPurchasedUnderAgreementsToResell" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterbankDepositsAndSecuritiesPurchasedUnderAgreementsToResellCurrent" abstract="false" name="InterbankDepositsAndSecuritiesPurchasedUnderAgreementsToResellCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterbankDepositsAndSecuritiesPurchasedUnderAgreementsToResellNonCurrent" abstract="false" name="InterbankDepositsAndSecuritiesPurchasedUnderAgreementsToResellNonCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_GovernmentSecuritiesMember" abstract="true" name="GovernmentSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CorporateSecuritiesMember" abstract="false" name="CorporateSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SharesMember" abstract="false" name="SharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_GovernmentSecuritiesDesignedAtFVPLMember" abstract="true" name="GovernmentSecuritiesDesignedAtFVPLMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialAssetsAtFairValueThroughProfitOrLossIncludingGovernmentSecuritiesMember" abstract="true" name="FinancialAssetsAtFairValueThroughProfitOrLossIncludingGovernmentSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BrazilianGovernmentSecuritiesMember" abstract="true" name="BrazilianGovernmentSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_GovernmentSecuritiesLatinAmericaMember" abstract="false" name="GovernmentSecuritiesLatinAmericaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_GovernmentSecuritiesAbroadMember" abstract="false" name="GovernmentSecuritiesAbroadMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RuralProductNoteMember" abstract="true" name="RuralProductNoteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BankDepositCertificatesMember" abstract="true" name="BankDepositCertificatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RealEstateReceivablesCertificatesMember" abstract="true" name="RealEstateReceivablesCertificatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DebenturesMember" abstract="true" name="DebenturesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_EurobondsAndOthersMember" abstract="false" name="EurobondsAndOthersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialBillsMember" abstract="true" name="FinancialBillsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PromissoryNotesMember" abstract="false" name="PromissoryNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherMember" abstract="true" name="OtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_GainsLossesOnFinancialAssetsAtFairValuesThroughProfitOrLossClassifiedAsHeldForTrading" abstract="false" name="GainsLossesOnFinancialAssetsAtFairValuesThroughProfitOrLossClassifiedAsHeldForTrading" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingIncludingGovernmentSecurities" abstract="false" name="FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingIncludingGovernmentSecurities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialAssetsAtCarryingValueMember" abstract="false" name="FinancialAssetsAtCarryingValueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_NonstatedMaturityMember" abstract="false" name="NonstatedMaturityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_NonDeliverableForwardMember" abstract="false" name="NonDeliverableForwardMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CreditDerivativesMember" abstract="false" name="CreditDerivativesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherMiscellaneousContractMember" abstract="true" name="OtherMiscellaneousContractMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LaterThanTwoYearsMember" abstract="false" name="LaterThanTwoYearsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_StockExchangeMember" abstract="true" name="StockExchangeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OverthecounterMarketMember" abstract="false" name="OverthecounterMarketMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialInstitutionsMember" abstract="false" name="FinancialInstitutionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CompaniesMember" abstract="false" name="CompaniesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_IndividualsMember" abstract="false" name="IndividualsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DerivativesPledgesAsCollateral" abstract="false" name="DerivativesPledgesAsCollateral" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherDerivativeFinancialInstrumentsMember" abstract="false" name="OtherDerivativeFinancialInstrumentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DerivativeInstrumentAxis" abstract="true" name="DerivativeInstrumentAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_DerivativeInstrumentDomain" abstract="true" name="DerivativeInstrumentDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CommoditiesMember" abstract="true" name="CommoditiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterestMember" abstract="true" name="InterestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ForeignCurrencyMember" abstract="true" name="ForeignCurrencyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CreditDefaultSwapsMember" abstract="false" name="CreditDefaultSwapsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TotalReturnsSwapMember" abstract="false" name="TotalReturnsSwapMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InvestmentGradeMember" abstract="false" name="InvestmentGradeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BelowInvestmentGradeMember" abstract="false" name="BelowInvestmentGradeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BrazilianGovernmentMember" abstract="false" name="BrazilianGovernmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_GovernmentAbroadMember" abstract="false" name="GovernmentAbroadMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PrivateEntitiesMember" abstract="false" name="PrivateEntitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_MaximumPotentialAmountOfFuturePayments" abstract="false" name="MaximumPotentialAmountOfFuturePayments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NotionalAmountofCreditProtectionSold" abstract="false" name="NotionalAmountofCreditProtectionSold" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NotionalAmountofCreditProtectionPurchasedwithIdenticalUnderlyingAmount" abstract="false" name="NotionalAmountofCreditProtectionPurchasedwithIdenticalUnderlyingAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NetPosition" abstract="false" name="NetPosition" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SecuritiesPurchasedUnderAgreementsToResellMember" abstract="false" name="SecuritiesPurchasedUnderAgreementsToResellMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RemainingAccumulatedMember" abstract="false" name="RemainingAccumulatedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RiskExposureCoveragePercentage" abstract="false" name="RiskExposureCoveragePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_ForeignCurrencyConversionReserve" abstract="false" name="ForeignCurrencyConversionReserve" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_EffectOfFairValueHedgeAdjustments" abstract="false" name="EffectOfFairValueHedgeAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_HedgeOfAssetsTransactionsMember" abstract="false" name="HedgeOfAssetsTransactionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_HedgeOfAssetBackedSecuritiesUnderRepurchaseAgreementsMember" abstract="false" name="HedgeOfAssetBackedSecuritiesUnderRepurchaseAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_HedgeOfAssetsDenominatedInChileanUnitOfAccountMember" abstract="true" name="HedgeOfAssetsDenominatedInChileanUnitOfAccountMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_HedgeOfLoanOperationsMember" abstract="false" name="HedgeOfLoanOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_HedgeOfDepositsAndRepurchaseAgreementsMember" abstract="false" name="HedgeOfDepositsAndRepurchaseAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_HedgeOfHighlyProbableForecastTransactionsMember" abstract="false" name="HedgeOfHighlyProbableForecastTransactionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_HedgeOfSecuritiesAtAmortizedCostMember" abstract="true" name="HedgeOfSecuritiesAtAmortizedCostMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_HedgeOfSecuritiesAtFairValueThroughOtherComprehensiveIncomeMember" abstract="true" name="HedgeOfSecuritiesAtFairValueThroughOtherComprehensiveIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_HedgeOfFundingMember" abstract="false" name="HedgeOfFundingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_HedgeOfFirmCommitmentsMember" abstract="false" name="HedgeOfFirmCommitmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_HedgeOfSecuritiesMember" abstract="false" name="HedgeOfSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialInstrumentDesignatedAsHedgingInstrumentsAtFairValue" abstract="false" name="FinancialInstrumentDesignatedAsHedgingInstrumentsAtFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CreditDerivativeBookValue" abstract="false" name="CreditDerivativeBookValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_HedgeOfNetInvestmentsInForeignOperationMember" abstract="true" name="HedgeOfNetInvestmentsInForeignOperationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_IncreaseDecreaseInCashFlowHedgeReserve" abstract="false" name="IncreaseDecreaseInCashFlowHedgeReserve" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestRateFuturesMember" abstract="false" name="InterestRateFuturesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterestRateForwardMember" abstract="false" name="InterestRateForwardMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterestRateSwap2Member" abstract="false" name="InterestRateSwap2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DdiFuturesContractsMember" abstract="false" name="DdiFuturesContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_NonDeliverableForwardContractMember" abstract="false" name="NonDeliverableForwardContractMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialAssetsHeldForHedgingMember" abstract="false" name="FinancialAssetsHeldForHedgingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_GainLossOnHedgeIneffectivenessRecognisedInIncome" abstract="false" name="GainLossOnHedgeIneffectivenessRecognisedInIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DebtSecuritiesCorporateMember" abstract="true" name="DebtSecuritiesCorporateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_GovernmentAndCorporateDebtSecuritiesMember" abstract="true" name="GovernmentAndCorporateDebtSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SharesDesignedAtFVOCIMember" abstract="true" name="SharesDesignedAtFVOCIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LatinAmericaGovernmentSecuritiesMember" abstract="true" name="LatinAmericaGovernmentSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AllOtherCountriesSecuritiesMember" abstract="true" name="AllOtherCountriesSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialAssetsAtCostThroughOtherComprehensiveIncomeSecurities" abstract="false" name="FinancialAssetsAtCostThroughOtherComprehensiveIncomeSecurities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialAssetAtFairValueAdjustmentsThroughOtherComprehensiveIncomeSecurities" abstract="false" name="FinancialAssetAtFairValueAdjustmentsThroughOtherComprehensiveIncomeSecurities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ExpectedCreditLossIncome" abstract="false" name="ExpectedCreditLossIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FairValueAdjustmentOCI" abstract="false" name="FairValueAdjustmentOCI" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialAssetsPledgedAtFairValueThroughOtherComprehensiveIncomeSecurities" abstract="false" name="FinancialAssetsPledgedAtFairValueThroughOtherComprehensiveIncomeSecurities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CurrentFinancialAssetsAtCostThroughOtherComprehensiveIncomeSecurities" abstract="false" name="CurrentFinancialAssetsAtCostThroughOtherComprehensiveIncomeSecurities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NoncurrentFinancialAssetsAtCostThroughOtherComprehensiveIncomeSecurities" abstract="false" name="NoncurrentFinancialAssetsAtCostThroughOtherComprehensiveIncomeSecurities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TypeOfExpectedCreditLossesAxis" abstract="true" name="TypeOfExpectedCreditLossesAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_TypeOfExpectedCreditLossesDomain" abstract="true" name="TypeOfExpectedCreditLossesDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_MovementOfExpectedCreditLossesAxis" abstract="true" name="MovementOfExpectedCreditLossesAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_MovementOfExpectedCreditLossesDomain" abstract="true" name="MovementOfExpectedCreditLossesDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TransferToLifetimeExpectedCreditLossesNotCreditImpairedMember" abstract="true" name="TransferToLifetimeExpectedCreditLossesNotCreditImpairedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TransferToLifetimeExpectedCreditLossesCreditImpairedMember" abstract="true" name="TransferToLifetimeExpectedCreditLossesCreditImpairedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TransferFromLifetimeExpectedCreditLossesNotCreditImpairedMember" abstract="true" name="TransferFromLifetimeExpectedCreditLossesNotCreditImpairedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TransferFromLifetimeExpectedCreditLossesCreditImpairedMember" abstract="true" name="TransferFromLifetimeExpectedCreditLossesCreditImpairedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" abstract="true" name="FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialAssetsSecuritiesMember" abstract="false" name="FinancialAssetsSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PromissoryAndCommercialNotesMember" abstract="false" name="PromissoryAndCommercialNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialAssetsExpectedLoss" abstract="false" name="FinancialAssetsExpectedLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialAssetAtFairValueNetAmortizedCost" abstract="false" name="FinancialAssetAtFairValueNetAmortizedCost" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialAssetPledgedAsCollateralForLiabilitiesOrContingentLiabilities" abstract="false" name="FinancialAssetPledgedAsCollateralForLiabilitiesOrContingentLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NonCurrentMember" abstract="false" name="NonCurrentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SecuritiesAtAmortizedCostMember" abstract="true" name="SecuritiesAtAmortizedCostMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LargeCompaniesMember" abstract="true" name="LargeCompaniesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_MicroSmallAndMediumCompaniesMember" abstract="false" name="MicroSmallAndMediumCompaniesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ForeignLoansMember" abstract="false" name="ForeignLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CreditCardsMember" abstract="false" name="CreditCardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PersonalLoanMember" abstract="false" name="PersonalLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PayrollLoansMember" abstract="false" name="PayrollLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_VehiclesLoansMember" abstract="false" name="VehiclesLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_MortgageLoansMember" abstract="false" name="MortgageLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OverdueAsFromOneDayMember" abstract="false" name="OverdueAsFromOneDayMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FallingDueUpToThreeMonthsMember" abstract="false" name="FallingDueUpToThreeMonthsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FallingDueMoreThanThreeMonthsButLessThanOneYearMember" abstract="false" name="FallingDueMoreThanThreeMonthsButLessThanOneYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FallingDueAfterOneYearMember" abstract="false" name="FallingDueAfterOneYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LargestDebtorMember" abstract="false" name="LargestDebtorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TenLargestDebtorsMember" abstract="false" name="TenLargestDebtorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwentyLargestDebtorsMember" abstract="false" name="TwentyLargestDebtorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FiftyLargestDebtorsMember" abstract="false" name="FiftyLargestDebtorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OneHundredLargestDebtorsMember" abstract="false" name="OneHundredLargestDebtorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LoanOperationsAndLeaseOperationsByType" abstract="false" name="LoanOperationsAndLeaseOperationsByType" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_MaximumExposureToCreditRiskOfLoansOrReceivable" abstract="false" name="MaximumExposureToCreditRiskOfLoansOrReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalLoansAndLeaseOperationsNetOfExpectedCreditLoss" abstract="false" name="TotalLoansAndLeaseOperationsNetOfExpectedCreditLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LoanOperationsAndLeaseOperationsByConcentration" abstract="false" name="LoanOperationsAndLeaseOperationsByConcentration" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_StagesTwoAndThreeMember" abstract="false" name="StagesTwoAndThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ExpectedCreditLossesForFinancialGuaranteesCreditCommitmentsAndCreditsToBeReleasedMember" abstract="true" name="ExpectedCreditLossesForFinancialGuaranteesCreditCommitmentsAndCreditsToBeReleasedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_EffectOnProfitLoss" abstract="false" name="EffectOnProfitLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RevenuesFromLeases" abstract="false" name="RevenuesFromLeases" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_StagesOneMember" abstract="false" name="StagesOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_StagesTwoMember" abstract="false" name="StagesTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_StagesThreeMember" abstract="false" name="StagesThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_IndividualsOneMember" abstract="false" name="IndividualsOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CorporateLoansOneMember" abstract="false" name="CorporateLoansOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_IndividualsConsolidatedStageMember" abstract="false" name="IndividualsConsolidatedStageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CorporateLoansConsolidatedStageMember" abstract="false" name="CorporateLoansConsolidatedStageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ForeignLoansLatinAmericaConsolidatedStageMember" abstract="false" name="ForeignLoansLatinAmericaConsolidatedStageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ForeignLoansLatinAmericaOneMember" abstract="false" name="ForeignLoansLatinAmericaOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AllowanceAccountForExpectedLoanLossesForLoanOperationsAndLeaseOperations" abstract="false" name="AllowanceAccountForExpectedLoanLossesForLoanOperationsAndLeaseOperations" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TransferToStage2" abstract="false" name="TransferToStage2" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TransferToStage3" abstract="false" name="TransferToStage3" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CureFromStageTwoAllowanceAccountForCreditLossesOfFinancialAssets" abstract="false" name="CureFromStageTwoAllowanceAccountForCreditLossesOfFinancialAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CureFromStageThreeAllowanceAccountForCreditLossesOfFinancialAssets" abstract="false" name="CureFromStageThreeAllowanceAccountForCreditLossesOfFinancialAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DecreaseThroughDerecognitionFinancialAsset" abstract="false" name="DecreaseThroughDerecognitionFinancialAsset" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AcquisitionAndSettlementOfAllowanceAccountForCreditLossesOfFinancialAssets" abstract="false" name="AcquisitionAndSettlementOfAllowanceAccountForCreditLossesOfFinancialAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CureToStageOneAllowanceAccountForCreditLossesOfFinancialAssets" abstract="false" name="CureToStageOneAllowanceAccountForCreditLossesOfFinancialAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CureToStageTwoAllowanceAccountForCreditLossesOfFinancialAssets" abstract="false" name="CureToStageTwoAllowanceAccountForCreditLossesOfFinancialAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TransfersFromStageOneAllowanceAccountForCreditLossesOfFinancialAssets" abstract="false" name="TransfersFromStageOneAllowanceAccountForCreditLossesOfFinancialAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CureToStageTwo" abstract="false" name="CureToStageTwo" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TransfersFromStageTwoAllowanceAccountForCreditLossesOfFinancialAssets" abstract="false" name="TransfersFromStageTwoAllowanceAccountForCreditLossesOfFinancialAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IndividualBorrowersMember" abstract="true" name="IndividualBorrowersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CorporateBorrowersMember" abstract="true" name="CorporateBorrowersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ForeignLoansInLatinAmericaMember" abstract="true" name="ForeignLoansInLatinAmericaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CureTo12MonthExpectedCreditLossesMember" abstract="true" name="CureTo12MonthExpectedCreditLossesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TransferFrom12MonthExpectedCreditLossesMember" abstract="true" name="TransferFrom12MonthExpectedCreditLossesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TransferFromFinancialInstrumentsNotCreditImpairedMember" abstract="true" name="TransferFromFinancialInstrumentsNotCreditImpairedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CureToFinancialInstrumentsNotCreditImpairedMember" abstract="true" name="CureToFinancialInstrumentsNotCreditImpairedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ExpectedCreditLossesMember" abstract="false" name="ExpectedCreditLossesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FutureFinancialIncome" abstract="false" name="FutureFinancialIncome" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RestrictedInvestmentTypeAxis" abstract="true" name="RestrictedInvestmentTypeAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_RestrictedInvestmentTypeDomain" abstract="true" name="RestrictedInvestmentTypeDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RestrictedInvestmentWithCoObligationMember" abstract="true" name="RestrictedInvestmentWithCoObligationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BookValueMember" abstract="false" name="BookValueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RestrictedOperationsOnAssetsMember" abstract="true" name="RestrictedOperationsOnAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LoanOperationsMember" abstract="false" name="LoanOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ForeignBorrowingThroughSecuritiesMember" abstract="true" name="ForeignBorrowingThroughSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TransferOfFinancialAssetsMember" abstract="true" name="TransferOfFinancialAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PortfolioTransferredMember" abstract="true" name="PortfolioTransferredMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RestrictedInvestmentWithoutCoObligationMember" abstract="true" name="RestrictedInvestmentWithoutCoObligationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinanceLeaseIncome" abstract="false" name="FinanceLeaseIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinanceExpenseOnNetInvestmentInFinanceLease" abstract="false" name="FinanceExpenseOnNetInvestmentInFinanceLease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InvestmentHoldingAxis" abstract="true" name="InvestmentHoldingAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_InvestmentHoldingDomain" abstract="true" name="InvestmentHoldingDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_NonMaterialIndividualInvestmentsMember" abstract="false" name="NonMaterialIndividualInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PravalerSAMember" abstract="false" name="PravalerSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PortoSeguroItauUnibancoParticipacoesSAMember" abstract="false" name="PortoSeguroItauUnibancoParticipacoesSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BSFHoldingSAMember" abstract="false" name="BSFHoldingSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_GestoraDeInteligenciaDeCreditoSAMember" abstract="false" name="GestoraDeInteligenciaDeCreditoSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RiasRedbancSAMember" abstract="false" name="RiasRedbancSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_KineaPrivateEquityInvestimentosSAMember" abstract="false" name="KineaPrivateEquityInvestimentosSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TecnologiaBancariaSAMember" abstract="false" name="TecnologiaBancariaSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CIPSAMember" abstract="false" name="CIPSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PrexHoldingLLCMember" abstract="false" name="PrexHoldingLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BanfurLnternationalSAMember" abstract="false" name="BanfurLnternationalSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BiomasServicosAmbientaisRestauracaoeCarbonoSAMember" abstract="false" name="BiomasServicosAmbientaisRestauracaoeCarbonoSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RedeAgroFidelidadeeIntermediacaoSAMember" abstract="false" name="RedeAgroFidelidadeeIntermediacaoSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RiblinorSAMember" abstract="false" name="RiblinorSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CajaDeValoresDelParaguayS.A.Member" abstract="true" name="CajaDeValoresDelParaguayS.A.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OlimpiaPromocaoeServicosSAMember" abstract="false" name="OlimpiaPromocaoeServicosSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ConectCarSolucoesdeMobilidadeEletronicaSAMember" abstract="false" name="ConectCarSolucoesdeMobilidadeEletronicaSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TOTVSTechfinSAMember" abstract="false" name="TOTVSTechfinSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PercentageInterestInTotalCapital" abstract="false" name="PercentageInterestInTotalCapital" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_PercentageInterestInVotingCapital" abstract="false" name="PercentageInterestInVotingCapital" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_LeasesRenewed" abstract="false" name="LeasesRenewed" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ImpairmentForLeases" abstract="false" name="ImpairmentForLeases" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalAmountOfRecognisedInProfitOrLoss" abstract="false" name="TotalAmountOfRecognisedInProfitOrLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RealEstatesMember" abstract="false" name="RealEstatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherFixedAssetsMember" abstract="false" name="OtherFixedAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BuildingAndImprovementsMember" abstract="false" name="BuildingAndImprovementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InstallationsAndFurnitureMember" abstract="false" name="InstallationsAndFurnitureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_WorksOfArtMember" abstract="true" name="WorksOfArtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RightOfUseMember" abstract="true" name="RightOfUseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CostPropertyPlantAndEquipment" abstract="false" name="CostPropertyPlantAndEquipment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_GoodwillAndIntangibleAssetsFromAcquisitionMember" abstract="false" name="GoodwillAndIntangibleAssetsFromAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PromotionAndOfferOfFinancialProductsAndServiceMember" abstract="false" name="PromotionAndOfferOfFinancialProductsAndServiceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SoftwareAcquisitionMember" abstract="false" name="SoftwareAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AnnualAmortizationRates" abstract="false" name="AnnualAmortizationRates" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_TerminationWriteOffs" abstract="false" name="TerminationWriteOffs" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AmortizationExpense" abstract="false" name="AmortizationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IntangibleAssetsAndGoodwillBookValue" abstract="false" name="IntangibleAssetsAndGoodwillBookValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AcquisitionOfPayrollsAndAssociationsRightsMember" abstract="false" name="AcquisitionOfPayrollsAndAssociationsRightsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BancoItauMember" abstract="false" name="BancoItauMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterestBearingDeposits1Member" abstract="false" name="InterestBearingDeposits1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SavingsAccountsMember" abstract="false" name="SavingsAccountsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterbankMember" abstract="false" name="InterbankMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TimeDepositsMember" abstract="false" name="TimeDepositsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_NonInterestBearingDepositsMember" abstract="false" name="NonInterestBearingDepositsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DemandDeposits1Member" abstract="false" name="DemandDeposits1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherDepositsMember" abstract="false" name="OtherDepositsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AssetsPledgedAsCollateralMember" abstract="false" name="AssetsPledgedAsCollateralMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AssetsReceivedAsCollateralMember" abstract="false" name="AssetsReceivedAsCollateralMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RightToSellOrRepledgeCollateralMember" abstract="false" name="RightToSellOrRepledgeCollateralMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OwnIssueMember" abstract="false" name="OwnIssueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ForeignSecuritiesMember" abstract="false" name="ForeignSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RepurchaseAgreementsAndCashCollateralOnSecuritiesLentCurrent" abstract="false" name="RepurchaseAgreementsAndCashCollateralOnSecuritiesLentCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RepurchaseAgreementsAndCashCollateralOnSecuritiesLentNoncurrent" abstract="false" name="RepurchaseAgreementsAndCashCollateralOnSecuritiesLentNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialCreditBillsMember" abstract="false" name="FinancialCreditBillsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RealEstateCreditBillsMember" abstract="false" name="RealEstateCreditBillsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RuralCreditBillsMember" abstract="false" name="RuralCreditBillsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_GuaranteedRealStateNotesMember" abstract="false" name="GuaranteedRealStateNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CreditFacilitiesAvailableForFinancingOfImportsAndExportsMember" abstract="false" name="CreditFacilitiesAvailableForFinancingOfImportsAndExportsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OnlendingDomesticMember" abstract="false" name="OnlendingDomesticMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterbankMarketFundFinancingCurrent" abstract="false" name="InterbankMarketFundFinancingCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterbankMarketFundFinancingNonCurrent" abstract="false" name="InterbankMarketFundFinancingNonCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SubordinatedDebtsMember" abstract="false" name="SubordinatedDebtsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ObligationsOnSecuritiesAbroadMember" abstract="false" name="ObligationsOnSecuritiesAbroadMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FundingFromStructuredOperationsCertificatesMember" abstract="false" name="FundingFromStructuredOperationsCertificatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BRLMember" abstract="false" name="BRLMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BorrowingInterestRateAxis" abstract="true" name="BorrowingInterestRateAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_BorrowingInterestRateDomainDomain" abstract="true" name="BorrowingInterestRateDomainDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OneHundredAndFourteenPercentageOfSelicMember" abstract="false" name="OneHundredAndFourteenPercentageOfSelicMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SelicPlusOnePointOneSevenPercentageToOnePointOneNinePercentageMember" abstract="false" name="SelicPlusOnePointOneSevenPercentageToOnePointOneNinePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CdiPlusOnePointEightyFivePercentageMember" abstract="false" name="CdiPlusOnePointEightyFivePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_IpcaPlusFourPointSixtyFourPercentageMember" abstract="false" name="IpcaPlusFourPointSixtyFourPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CdiPlusTwoPercentageMember" abstract="false" name="CdiPlusTwoPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CdiPlusTwoPointFourPercentageMember" abstract="false" name="CdiPlusTwoPointFourPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OneHundredAndTwoPercenatgeOfCdiMember" abstract="false" name="OneHundredAndTwoPercenatgeOfCdiMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CdiPlusPointZeroTwoPercentageMember" abstract="true" name="CdiPlusPointZeroTwoPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TenPointSixThreePercentageMember" abstract="false" name="TenPointSixThreePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CdiPlusOnePointNinePercentageMember" abstract="false" name="CdiPlusOnePointNinePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_IPCAPlusFivePointFourEightPercentageMember" abstract="false" name="IPCAPlusFivePointFourEightPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OneHundredPercenatgeOfCdiMember" abstract="false" name="OneHundredPercenatgeOfCdiMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CdiPlusZeroPointSixFivePercentageMember" abstract="false" name="CdiPlusZeroPointSixFivePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CdiPlusZeroPointNinePercentageMember" abstract="false" name="CdiPlusZeroPointNinePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CdiPlusOnePointOnePercentageMember" abstract="false" name="CdiPlusOnePointOnePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CdiPlusOnePointTwoFivePercentageMember" abstract="true" name="CdiPlusOnePointTwoFivePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CdiPlusOnePointOneFivePercentageMember" abstract="true" name="CdiPlusOnePointOneFivePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CdiPlusOnePointThreeFivePercentageMember" abstract="true" name="CdiPlusOnePointThreeFivePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SevenPointEightSixPercentageMember" abstract="false" name="SevenPointEightSixPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SevenPointFiveSixPercentageMember" abstract="true" name="SevenPointFiveSixPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ThreePointEightEightPercentageMember" abstract="false" name="ThreePointEightEightPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ThreePointFiveZeroPercentageToFourPointNineTwoPercentageMember" abstract="false" name="ThreePointFiveZeroPercentageToFourPointNineTwoPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FourPointSevenFivePercentageMember" abstract="false" name="FourPointSevenFivePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FourPointThreeFivePercentageMember" abstract="false" name="FourPointThreeFivePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ThreePointNineZeroPercentageToThreePointNineSixPercentageMember" abstract="false" name="ThreePointNineZeroPercentageToThreePointNineSixPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FourPointFourEightPercentageMember" abstract="false" name="FourPointFourEightPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ThreePointNineThreePercentageMember" abstract="false" name="ThreePointNineThreePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FourPointOneFivePercentageToFourPointTwoNinePercentageMember" abstract="false" name="FourPointOneFivePercentageToFourPointTwoNinePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FourPointFourFivePercentageMember" abstract="false" name="FourPointFourFivePercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ThreePointEightZeroPercentageMember" abstract="false" name="ThreePointEightZeroPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_IpcPlusTwoPercentageMember" abstract="false" name="IpcPlusTwoPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_EightPointNineZeroPercentageMember" abstract="false" name="EightPointNineZeroPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SevenPointOneEightPercentageMember" abstract="false" name="SevenPointOneEightPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SubordinatedFinancialBillsMember" abstract="false" name="SubordinatedFinancialBillsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SubordinatedEuronotesMember" abstract="false" name="SubordinatedEuronotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SubordinatedBondsMember" abstract="false" name="SubordinatedBondsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PerpetualMember" abstract="false" name="PerpetualMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndTwentyNineMember" abstract="false" name="TwoThousandAndTwentyNineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndThirtyMember" abstract="false" name="TwoThousandAndThirtyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndThirtyOneMember" abstract="false" name="TwoThousandAndThirtyOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndThirtyFourMember" abstract="false" name="TwoThousandAndThirtyFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndThirtyNineMember" abstract="false" name="TwoThousandAndThirtyNineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndThirtyThreeMember" abstract="false" name="TwoThousandAndThirtyThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndThirtyFiveMember" abstract="false" name="TwoThousandAndThirtyFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndThirtyTwoMember" abstract="false" name="TwoThousandAndThirtyTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndThirtySixMember" abstract="false" name="TwoThousandAndThirtySixMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndThirtyEightMember" abstract="false" name="TwoThousandAndThirtyEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndFortyMember" abstract="false" name="TwoThousandAndFortyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndFortyTwoMember" abstract="false" name="TwoThousandAndFortyTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndTwentyEightMember" abstract="false" name="TwoThousandAndTwentyEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndTwentyFiveMember" abstract="false" name="TwoThousandAndTwentyFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwoThousandAndTwentyFourMember" abstract="true" name="TwoThousandAndTwentyFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DebtInstrumentFaceAmount1" abstract="false" name="DebtInstrumentFaceAmount1" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ReceivablesFromCreditCardIssuersMember" abstract="false" name="ReceivablesFromCreditCardIssuersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DepositsInGuaranteeForContingentLiabilitiesProvisionsAndLegalObligationsMember" abstract="false" name="DepositsInGuaranteeForContingentLiabilitiesProvisionsAndLegalObligationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TradingAndIntermediationOfSecuritiesMember" abstract="false" name="TradingAndIntermediationOfSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_IncomeReceivableMember" abstract="false" name="IncomeReceivableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CreditOfOperationsWithoutCreditGrantingCharacteristicsNetAmountMember" abstract="false" name="CreditOfOperationsWithoutCreditGrantingCharacteristicsNetAmountMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_NetAmountReceivableFromReimbursementOfProvisionsMember" abstract="false" name="NetAmountReceivableFromReimbursementOfProvisionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DepositsInGuaranteeOfFundRaisingAbroadMember" abstract="false" name="DepositsInGuaranteeOfFundRaisingAbroadMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SundryForeignMember" abstract="false" name="SundryForeignMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PrepaidExpensesMember" abstract="false" name="PrepaidExpensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SundryDomesticMember" abstract="false" name="SundryDomesticMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PlanAssetsPostemploymentBenefitsMember" abstract="false" name="PlanAssetsPostemploymentBenefitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_EncryptedDigitalAssetsMember" abstract="false" name="EncryptedDigitalAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ForeignExchangePortfolioMember" abstract="false" name="ForeignExchangePortfolioMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherFinancialAsset" abstract="false" name="OtherFinancialAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherFinancialAssetsAtAmortisedCost" abstract="false" name="OtherFinancialAssetsAtAmortisedCost" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherFinancialAssetsAtFairValueThroughProfitOrLoss" abstract="false" name="OtherFinancialAssetsAtFairValueThroughProfitOrLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CreditCardOperationsMember" abstract="false" name="CreditCardOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinanceLeasesMember" abstract="false" name="FinanceLeasesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherFinancialsLiabilitiesMember" abstract="false" name="OtherFinancialsLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FundsInTransitMember" abstract="false" name="FundsInTransitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CollectionAndPaymentOfTaxesAndContributionsMember" abstract="false" name="CollectionAndPaymentOfTaxesAndContributionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SocialAndStatutoryMember" abstract="false" name="SocialAndStatutoryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DeferredIncomeMember" abstract="false" name="DeferredIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DomesticSundryCreditorsMember" abstract="false" name="DomesticSundryCreditorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PersonnelProvisionMember" abstract="false" name="PersonnelProvisionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ProvisionForSundryPaymentsMember" abstract="false" name="ProvisionForSundryPaymentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LiabilitiesForOfficialAgreementsAndRenderingOfPaymentServicesMember" abstract="false" name="LiabilitiesForOfficialAgreementsAndRenderingOfPaymentServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ProvisionForRetirementPlanBenefitsMember" abstract="false" name="ProvisionForRetirementPlanBenefitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherNonfinancialLiabilitiesMember" abstract="false" name="OtherNonfinancialLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherFinancialLiabilitiesTotal" abstract="false" name="OtherFinancialLiabilitiesTotal" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherFinancialLiabilitiesAtAmortisedCostTotal" abstract="false" name="OtherFinancialLiabilitiesAtAmortisedCostTotal" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossTotal" abstract="false" name="OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossTotal" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncreaseCapital" abstract="false" name="IncreaseCapital" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_StatutoryReservePercentage" abstract="false" name="StatutoryReservePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="itub_IncreaseInCapitalShares" abstract="false" name="IncreaseInCapitalShares" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="itub_PreferredSharesOfOwnIssue" abstract="false" name="PreferredSharesOfOwnIssue" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="itub_AdjustedNetIncomeRate" abstract="false" name="AdjustedNetIncomeRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_NonCumulativePerShare" abstract="false" name="NonCumulativePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="itub_DividendPerShare" abstract="false" name="DividendPerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="itub_NetIncomeRemainingAfterTheDistributionOfDividendsAndAppropriationsToStatutoryReserves" abstract="false" name="NetIncomeRemainingAfterTheDistributionOfDividendsAndAppropriationsToStatutoryReserves" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CountryOfBrazilMember" abstract="false" name="CountryOfBrazilMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ShareIssuanceAxis" abstract="true" name="ShareIssuanceAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_ShareIssuanceDomain" abstract="true" name="ShareIssuanceDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BonusShareIssuanceOneMember" abstract="true" name="BonusShareIssuanceOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BonusShareIssuanceTwoMember" abstract="true" name="BonusShareIssuanceTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SharesOfCapitalStockSharesBonusSharesIssuedDuringPeriod" abstract="false" name="SharesOfCapitalStockSharesBonusSharesIssuedDuringPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="itub_SharesOfCapitalStockSharesCancellationOfShares" abstract="false" name="SharesOfCapitalStockSharesCancellationOfShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="itub_NumberOfTreasuryShares" abstract="false" name="NumberOfTreasuryShares" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="itub_TreasuryShare" abstract="false" name="TreasuryShare" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AcquisitionOfTreasuryShares" abstract="false" name="AcquisitionOfTreasuryShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="itub_AcquisitionOfTreasurySharesValue" abstract="false" name="AcquisitionOfTreasurySharesValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TreasurySharesSharesCancellationOfSharesDuringPeriod" abstract="false" name="TreasurySharesSharesCancellationOfSharesDuringPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="itub_TreasurySharesValueCancellationOfSharesDuringPeriod" abstract="false" name="TreasurySharesValueCancellationOfSharesDuringPeriod" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SaleOrIssuanceOfTreasuryShares" abstract="false" name="SaleOrIssuanceOfTreasuryShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="itub_TreasurySharesBonusSharesIssued" abstract="false" name="TreasurySharesBonusSharesIssued" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="itub_MarketValueMinimum" abstract="false" name="MarketValueMinimum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="itub_MarketValueWeightedAverage" abstract="false" name="MarketValueWeightedAverage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="itub_MarketValueMaximum" abstract="false" name="MarketValueMaximum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="itub_AverageCostPricePerShare" abstract="false" name="AverageCostPricePerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="itub_MarketPricePerShare" abstract="false" name="MarketPricePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="itub_LegalReserve" abstract="false" name="LegalReserve" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DividendCalculationBasis" abstract="false" name="DividendCalculationBasis" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_MandatoryDividend" abstract="false" name="MandatoryDividend" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DividendsAndInterestOnCapitalPaidAccrued" abstract="false" name="DividendsAndInterestOnCapitalPaidAccrued" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestOnCapitalOneMember" abstract="false" name="InterestOnCapitalOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterestOnCapitalTwoMember" abstract="false" name="InterestOnCapitalTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterestOnCapitalThreeMember" abstract="false" name="InterestOnCapitalThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterestOnCapitalFourMember" abstract="false" name="InterestOnCapitalFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterestOnCapitalCreditedMember" abstract="false" name="InterestOnCapitalCreditedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterestOnCapitalCredited1Member" abstract="false" name="InterestOnCapitalCredited1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DividendsPaidAndPrepaidGross" abstract="false" name="DividendsPaidAndPrepaidGross" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DividendsPaidAndPrepaidWithholdingTax" abstract="false" name="DividendsPaidAndPrepaidWithholdingTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DividendsPaidAndPrepaid" abstract="false" name="DividendsPaidAndPrepaid" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestOnCapitalMonthlyInstallmentGrossValuePerShare" abstract="false" name="InterestOnCapitalMonthlyInstallmentGrossValuePerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="itub_InterestOnCapitalMonthlyInstallmentValue" abstract="false" name="InterestOnCapitalMonthlyInstallmentValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestOnCapitalMonthlyInstallmentWHT" abstract="false" name="InterestOnCapitalMonthlyInstallmentWHT" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestOnCapitalMonthlyInstallmentNet" abstract="false" name="InterestOnCapitalMonthlyInstallmentNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestOnCapitalGrossValuePerShare" abstract="false" name="InterestOnCapitalGrossValuePerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="itub_InterestOnCapitalPaidValue" abstract="false" name="InterestOnCapitalPaidValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestOnCapitalWHT" abstract="false" name="InterestOnCapitalWHT" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestsOnCapitalNet" abstract="false" name="InterestsOnCapitalNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestOnCapitalValue" abstract="false" name="InterestOnCapitalValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CurrentDividendPayablesGross" abstract="false" name="CurrentDividendPayablesGross" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CurrentDividendPayablesWithHoldingtax" abstract="false" name="CurrentDividendPayablesWithHoldingtax" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestOnCapitalToBePaidInFuturePaidPerShare" abstract="false" name="InterestOnCapitalToBePaidInFuturePaidPerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="itub_IdentifiedInRevenuesReservesInStockholdersEquityValue" abstract="false" name="IdentifiedInRevenuesReservesInStockholdersEquityValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IdentifiedInRevenueReservesInStockholdersEquityNet" abstract="false" name="IdentifiedInRevenueReservesInStockholdersEquityNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestsOnCapitalGrossValuePerShare" abstract="false" name="InterestsOnCapitalGrossValuePerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="itub_InterestOnCapitalGrossValue" abstract="false" name="InterestOnCapitalGrossValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestOnCapitalWithholdingTax" abstract="false" name="InterestOnCapitalWithholdingTax" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestOnCapitalNet" abstract="false" name="InterestOnCapitalNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DividendsGrossValuePerShare" abstract="false" name="DividendsGrossValuePerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="itub_DividendsValue" abstract="false" name="DividendsValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DividendsNet" abstract="false" name="DividendsNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalValue" abstract="false" name="TotalValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DividendsOrInterestOnCapitalRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYearsWithholdingTax" abstract="false" name="DividendsOrInterestOnCapitalRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYearsWithholdingTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DividendsAndInterestOnShareholderEquityPayable" abstract="false" name="DividendsAndInterestOnShareholderEquityPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PremiumOnSubscriptionOfSharesMember" abstract="false" name="PremiumOnSubscriptionOfSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ReservesFromTaxIncentivesRestatementOfEquitySecuritiesAndOtherMember" abstract="false" name="ReservesFromTaxIncentivesRestatementOfEquitySecuritiesAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LegalMember" abstract="false" name="LegalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SpecialRevenueMember" abstract="false" name="SpecialRevenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RevenueReserves" abstract="false" name="RevenueReserves" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalReservesAtParentCompany" abstract="false" name="TotalReservesAtParentCompany" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ItauColombiaSAMember" abstract="false" name="ItauColombiaSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LuizacredSASocCredFinanciamentoInvestimentoMember" abstract="false" name="LuizacredSASocCredFinanciamentoInvestimentoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherSubsidiariesMember" abstract="false" name="OtherSubsidiariesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PercentageOfSharesHeldByControllingAndMinorityStockholders" abstract="false" name="PercentageOfSharesHeldByControllingAndMinorityStockholders" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_ShareBasedCompensationArrangementBonusArrangementSharesAcquiredLockUpPeriod" abstract="false" name="ShareBasedCompensationArrangementBonusArrangementSharesAcquiredLockUpPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="itub_BonusShareIssuanceRatio" abstract="false" name="BonusShareIssuanceRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="itub_ShareBasedCompensationArrangementVariableCompensationArrangementCompensationPeriod" abstract="false" name="ShareBasedCompensationArrangementVariableCompensationArrangementCompensationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="itub_ShareBasedCompensationArrangementVariableCompensationArrangementShareDeferralBasisPercentageDeliveredPerYear" abstract="false" name="ShareBasedCompensationArrangementVariableCompensationArrangementShareDeferralBasisPercentageDeliveredPerYear" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="itub_PartnersPlanMember" abstract="false" name="PartnersPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ShareBasedPlanMember" abstract="false" name="ShareBasedPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_NumberOfShareOptionsDeliveredInShareBasedPaymentArrangement" abstract="false" name="NumberOfShareOptionsDeliveredInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="itub_NumberOfShareOptionsCancelledInShareBasedPaymentArrangement" abstract="false" name="NumberOfShareOptionsCancelledInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="itub_WeightedAverageOfRemainingContractualLifeYears" abstract="false" name="WeightedAverageOfRemainingContractualLifeYears" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="itub_VariableCompensationsMember" abstract="false" name="VariableCompensationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CompulsoryDepositsInTheCentralBankOfBrazilMember" abstract="false" name="CompulsoryDepositsInTheCentralBankOfBrazilMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterbankDepositsMember" abstract="false" name="InterbankDepositsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LoansOperationsMember" abstract="false" name="LoansOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherFinancialAssetMember" abstract="false" name="OtherFinancialAssetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterestAndSimilarIncome" abstract="false" name="InterestAndSimilarIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_BankDepositsMember" abstract="false" name="BankDepositsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SecuritiesSoldUnderRepurchaseAgreementsMember" abstract="false" name="SecuritiesSoldUnderRepurchaseAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterBankMarketDebtMember" abstract="false" name="InterBankMarketDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InstitutionalMarketDebtMember" abstract="false" name="InstitutionalMarketDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherInterestAndSimilarExpenseMember" abstract="false" name="OtherInterestAndSimilarExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InterestAndSimilarExpense" abstract="false" name="InterestAndSimilarExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SecuritiesMember" abstract="false" name="SecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherFinancialAssetsAtFairValueThroughProfitOrLossMember" abstract="false" name="OtherFinancialAssetsAtFairValueThroughProfitOrLossMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialLiabilityDesignatedAtFairValueMember" abstract="false" name="FinancialLiabilityDesignatedAtFairValueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialAssetsDesignatedAtFairValueThroughProfitOrLossEquitySecuritiesMember" abstract="false" name="FinancialAssetsDesignatedAtFairValueThroughProfitOrLossEquitySecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialAssetsExpenseRecognizedOnExpectedLosses" abstract="false" name="FinancialAssetsExpenseRecognizedOnExpectedLosses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalLossNetOfReversals" abstract="false" name="TotalLossNetOfReversals" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FeesFromCreditAndDebitCardServices" abstract="false" name="FeesFromCreditAndDebitCardServices" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CurrentAccountServices" abstract="false" name="CurrentAccountServices" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AssetManagement" abstract="false" name="AssetManagement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AssetManagementFeesFundsIncome" abstract="false" name="AssetManagementFeesFundsIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AssetManagementFeesConsortiaIncome" abstract="false" name="AssetManagementFeesConsortiaIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FeesForGuaranteesIssuedAndCreditLines" abstract="false" name="FeesForGuaranteesIssuedAndCreditLines" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FeesForCreditLines" abstract="false" name="FeesForCreditLines" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FeesForFinancialGuaranteesIssued" abstract="false" name="FeesForFinancialGuaranteesIssued" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CollectionCommissions" abstract="false" name="CollectionCommissions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_BrokerageCommission" abstract="false" name="BrokerageCommission" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CustodyServices" abstract="false" name="CustodyServices" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherBankingServices" abstract="false" name="OtherBankingServices" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_EmployeeProfitSharing" abstract="false" name="EmployeeProfitSharing" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ThirdPartyServicesFinancialServicesExpensesSecurityAndTransportation" abstract="false" name="ThirdPartyServicesFinancialServicesExpensesSecurityAndTransportation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DataProcessingAndTelecommunications" abstract="false" name="DataProcessingAndTelecommunications" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InstallationFee" abstract="false" name="InstallationFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherAdministrativeExpenses" abstract="false" name="OtherAdministrativeExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_Claims" abstract="false" name="Claims" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SellingOfNonFinancialProducts" abstract="false" name="SellingOfNonFinancialProducts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LossOnSaleOfAssetsHeldForSaleFixedAssetsAndInvestmentsInAssociatesAndJointVentures" abstract="false" name="LossOnSaleOfAssetsHeldForSaleFixedAssetsAndInvestmentsInAssociatesAndJointVentures" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ProvisionForCivilLawsuits" abstract="false" name="ProvisionForCivilLawsuits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ProvisionForTaxAndSocialSecurityLawsuitsAndOtherRisks" abstract="false" name="ProvisionForTaxAndSocialSecurityLawsuitsAndOtherRisks" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SellingGeneralAndAdministrativeExpenses" abstract="false" name="SellingGeneralAndAdministrativeExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeTax" abstract="false" name="IncomeTax" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_AdditionalIncomeTax" abstract="false" name="AdditionalIncomeTax" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_SocialContributionOnNetIncome" abstract="false" name="SocialContributionOnNetIncome" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_ChargesInIncomeTaxAndSocialContributionAtRatesInEffect" abstract="false" name="ChargesInIncomeTaxAndSocialContributionAtRatesInEffect" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncreaseDecreaseInIncomeTaxAndSocialContributionChargesArisingFromAbstract" abstract="true" name="IncreaseDecreaseInIncomeTaxAndSocialContributionChargesArisingFromAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_ShareOfProfitOrLossOfAssociatesAndJointVentures" abstract="false" name="ShareOfProfitOrLossOfAssociatesAndJointVentures" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestOnCapital" abstract="false" name="InterestOnCapital" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherNondeductibleExpensesNetOfNonTaxableIncome" abstract="false" name="OtherNondeductibleExpensesNetOfNonTaxableIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CurrentIncomeTaxAndSocialContributionExpenseBenefit" abstract="false" name="CurrentIncomeTaxAndSocialContributionExpenseBenefit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RelatedToTemporaryDifferences" abstract="true" name="RelatedToTemporaryDifferences" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_DeferredIncomeTaxAndSocialContributionExpenseBenefit" abstract="false" name="DeferredIncomeTaxAndSocialContributionExpenseBenefit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeTaxAndSocialContributionExpenses" abstract="false" name="IncomeTaxAndSocialContributionExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ReflectedInIncomeMember" abstract="false" name="ReflectedInIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ProvisionForExpectedLossMember" abstract="false" name="ProvisionForExpectedLossMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RelatedToIncomeTaxAndSocialContributionTaxCarryforwardsMember" abstract="false" name="RelatedToIncomeTaxAndSocialContributionTaxCarryforwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ProvisionForProfitSharingMember" abstract="false" name="ProvisionForProfitSharingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ProvisionMember" abstract="false" name="ProvisionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CivilLawsuitsMember" abstract="false" name="CivilLawsuitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LaborClaimsMember" abstract="false" name="LaborClaimsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TaxAndSocialSecurityMember" abstract="false" name="TaxAndSocialSecurityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LegalLiabilitiesMember" abstract="false" name="LegalLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AdjustmentsOfOperationsCarriedOutOnFuturesSettlementMarketMember" abstract="false" name="AdjustmentsOfOperationsCarriedOutOnFuturesSettlementMarketMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AdjustmentToFairValueOfFinancialAssetsAtFairValueThroughProfitOrLossMember" abstract="false" name="AdjustmentToFairValueOfFinancialAssetsAtFairValueThroughProfitOrLossMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ProvisionRelatedToHealthInsuranceOperationsMember" abstract="false" name="ProvisionRelatedToHealthInsuranceOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherItemsReflectedInIncomeMember" abstract="false" name="OtherItemsReflectedInIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ReflectedInStockholderEquityMember" abstract="false" name="ReflectedInStockholderEquityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AdjustmentToFairValueOfFinancialAssetsAtFairValueThroughOtherComprehensiveIncomeMember" abstract="false" name="AdjustmentToFairValueOfFinancialAssetsAtFairValueThroughOtherComprehensiveIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherItemsReflectedInIncomeStockholderEquityMember" abstract="false" name="OtherItemsReflectedInIncomeStockholderEquityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DepreciationInExcessFinanceLeaseMember" abstract="false" name="DepreciationInExcessFinanceLeaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AdjustmentOfEscrowDepositsAndProvisionsMember" abstract="false" name="AdjustmentOfEscrowDepositsAndProvisionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PostEmploymentBenefitsMember" abstract="false" name="PostEmploymentBenefitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TaxationOfResultsAbroadCapitalGainsMember" abstract="false" name="TaxationOfResultsAbroadCapitalGainsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PostEmploymentBenefits1Member" abstract="false" name="PostEmploymentBenefits1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RealizationReversal" abstract="false" name="RealizationReversal" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncreaseDecreaseInDeferredTaxAssets" abstract="false" name="IncreaseDecreaseInDeferredTaxAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ProvisionForDeferredTaxAndContributions" abstract="false" name="ProvisionForDeferredTaxAndContributions" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RealizationReversalProvisionForDeferredTaxAndContributions" abstract="false" name="RealizationReversalProvisionForDeferredTaxAndContributions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncreaseInProvisionForDeferredTaxAndContributions" abstract="false" name="IncreaseInProvisionForDeferredTaxAndContributions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TaxableEntityMember" abstract="false" name="TaxableEntityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_NetDeferredTaxAsset" abstract="false" name="NetDeferredTaxAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TemporaryDifferences" abstract="false" name="TemporaryDifferences" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TemporaryDifferencesPercentage" abstract="false" name="TemporaryDifferencesPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_DeferredTaxAssetsTaxLossSocialContributionLossCarryforwards" abstract="false" name="DeferredTaxAssetsTaxLossSocialContributionLossCarryforwards" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DeferredTaxAssetsTaxLossSocialContributionLossCarryforwardsPercentage" abstract="false" name="DeferredTaxAssetsTaxLossSocialContributionLossCarryforwardsPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_DeferredTaxAssetsPercentage" abstract="false" name="DeferredTaxAssetsPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_DeferredTaxLiabilitiesPercentage" abstract="false" name="DeferredTaxLiabilitiesPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_NetDeferredTaxesPercentage" abstract="false" name="NetDeferredTaxesPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_PresentValueOfTemporaryDifferences" abstract="false" name="PresentValueOfTemporaryDifferences" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PresentValueOfTaxLossSocialContributionLossCarryforwards" abstract="false" name="PresentValueOfTaxLossSocialContributionLossCarryforwards" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PresentValueOfDeferredTaxAssets" abstract="false" name="PresentValueOfDeferredTaxAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PresentValueOfDeferredTaxesLiabilities" abstract="false" name="PresentValueOfDeferredTaxesLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PresentValueOfNetDeferredTaxes" abstract="false" name="PresentValueOfNetDeferredTaxes" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TaxesAndContributionsOnIncomePayable" abstract="false" name="TaxesAndContributionsOnIncomePayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DeferredTaxLiability" abstract="false" name="DeferredTaxLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherTaxLiability" abstract="false" name="OtherTaxLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_MinimumNonCumulativeDividendsOnPreferredShares" abstract="false" name="MinimumNonCumulativeDividendsOnPreferredShares" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RetainedEarningsToBeDistributedToCommonShares" abstract="false" name="RetainedEarningsToBeDistributedToCommonShares" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RetainedEarningsToBeDistributedOnProRataBasisToCommonAndPreferredEquityOwners" abstract="false" name="RetainedEarningsToBeDistributedOnProRataBasisToCommonAndPreferredEquityOwners" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DividendOnPreferredSharesAfterDilutionEffects" abstract="false" name="DividendOnPreferredSharesAfterDilutionEffects" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OverAllAdjustedWeightedAverageShares" abstract="false" name="OverAllAdjustedWeightedAverageShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="itub_FixedIncomeSecurities1Member" abstract="false" name="FixedIncomeSecurities1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_VariableIncomeSecuritiesMember" abstract="false" name="VariableIncomeSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_StructuredInvestmentsMember" abstract="false" name="StructuredInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RealEstate1Member" abstract="false" name="RealEstate1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LoansToParticipantsMember" abstract="false" name="LoansToParticipantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DefinedBenefitPlansByNameAxis" abstract="true" name="DefinedBenefitPlansByNameAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_DefinedBenefitPlansByNameDomain" abstract="true" name="DefinedBenefitPlansByNameDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_QuotedInAnActiveMarketMember" abstract="false" name="QuotedInAnActiveMarketMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_NonquotedInAnActiveMarketMember" abstract="false" name="NonquotedInAnActiveMarketMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PercentageOfAllocation" abstract="false" name="PercentageOfAllocation" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_RealEstate2Member" abstract="false" name="RealEstate2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PlanoDeBeneficiosIIMember" abstract="false" name="PlanoDeBeneficiosIIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InflationRate" abstract="false" name="InflationRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_ActuarialAssumptionOfDiscountRate" abstract="false" name="ActuarialAssumptionOfDiscountRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_OtherIncomeExpenses" abstract="false" name="OtherIncomeExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DefinedBenefitPlansAndVariableContributionPlansMember" abstract="false" name="DefinedBenefitPlansAndVariableContributionPlansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DefinedContributionPlansMember" abstract="false" name="DefinedContributionPlansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherPostEmploymentBenefitsMember" abstract="false" name="OtherPostEmploymentBenefitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AmountsRecognizedInIncome" abstract="false" name="AmountsRecognizedInIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CostOfCurrentService" abstract="false" name="CostOfCurrentService" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherRevenuesAndExpenses" abstract="false" name="OtherRevenuesAndExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AmountRecognizedInStockholdersEquity" abstract="false" name="AmountRecognizedInStockholdersEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DecreaseIncreaseInNetDefinedBenefitLiabilityAssetResultingFromGainLossInChangesInDemographicAssumptions" abstract="false" name="DecreaseIncreaseInNetDefinedBenefitLiabilityAssetResultingFromGainLossInChangesInDemographicAssumptions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ChangesInFinancialAssumptions" abstract="false" name="ChangesInFinancialAssumptions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ExperienceOfThePlan" abstract="false" name="ExperienceOfThePlan" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromOtherChanges" abstract="false" name="IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromOtherChanges" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ContributionsAndInvestmentsFromSponsor" abstract="false" name="ContributionsAndInvestmentsFromSponsor" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AmountRecognizedInAssets" abstract="false" name="AmountRecognizedInAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AmountRecognizedInLiabilities" abstract="false" name="AmountRecognizedInLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FundacaoItauUnibancoPrevidenciaComplementarMember" abstract="false" name="FundacaoItauUnibancoPrevidenciaComplementarMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FunbepFundoDePensaoMultipatrocinadoMember" abstract="false" name="FunbepFundoDePensaoMultipatrocinadoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DefinedBenefitPlanObligationAverageDuration" abstract="false" name="DefinedBenefitPlanObligationAverageDuration" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="itub_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths1" abstract="false" name="DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths1" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DefinedBenefitPlanExpectedFutureBenefitPaymentYearTwo" abstract="false" name="DefinedBenefitPlanExpectedFutureBenefitPaymentYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DefinedBenefitPlanExpectedFutureBenefitPaymentYearThree" abstract="false" name="DefinedBenefitPlanExpectedFutureBenefitPaymentYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DefinedBenefitPlanExpectedFutureBenefitPaymentYearFour" abstract="false" name="DefinedBenefitPlanExpectedFutureBenefitPaymentYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DefinedBenefitPlanExpectedFutureBenefitPaymentYearFive" abstract="false" name="DefinedBenefitPlanExpectedFutureBenefitPaymentYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearsSixAndThereAfter" abstract="false" name="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearsSixAndThereAfter" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ActuarialAssumptionOfInterestRatesMember" abstract="false" name="ActuarialAssumptionOfInterestRatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_StockholdersEquityMember" abstract="false" name="StockholdersEquityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AssetsLiabilitiesMember" abstract="false" name="AssetsLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_IncomeContractualMember" abstract="false" name="IncomeContractualMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_IncomeFinancialMember" abstract="false" name="IncomeFinancialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_GeneralModelBba" abstract="false" name="GeneralModelBba" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_GeneralModelBbaInsurance" abstract="false" name="GeneralModelBbaInsurance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PrivatePensions" abstract="false" name="PrivatePensions" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_VariableFeeApproachVfa" abstract="false" name="VariableFeeApproachVfa" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_VariableFeeApproachVfaPrivatePension" abstract="false" name="VariableFeeApproachVfaPrivatePension" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SimplifiedModelPaa" abstract="false" name="SimplifiedModelPaa" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SimplifiedModelPaaInsurance" abstract="false" name="SimplifiedModelPaaInsurance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SimplifiedModelPaaReinsurance" abstract="false" name="SimplifiedModelPaaReinsurance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalInsuranceContractsAndPrivatePension" abstract="false" name="TotalInsuranceContractsAndPrivatePension" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalInsuranceContractsAndPrivatePensionInsurance" abstract="false" name="TotalInsuranceContractsAndPrivatePensionInsurance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalInsuranceContractsAndPrivatePensionReinsurance" abstract="false" name="TotalInsuranceContractsAndPrivatePensionReinsurance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalInsuranceContractsAndPrivatePensionPrivatePension" abstract="false" name="TotalInsuranceContractsAndPrivatePensionPrivatePension" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NonCurrentAssetsLiabilities" abstract="false" name="NonCurrentAssetsLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_GeneralModelBBAMember" abstract="false" name="GeneralModelBBAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FairValueInvestmentFunds" abstract="false" name="FairValueInvestmentFunds" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RevenueFromInsurance" abstract="false" name="RevenueFromInsurance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RevenueFromPrivatePension" abstract="false" name="RevenueFromPrivatePension" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LiabilityRemainingCoverageMember" abstract="false" name="LiabilityRemainingCoverageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LossComponentOfTheLiabilityForRemainingCoverageMember" abstract="false" name="LossComponentOfTheLiabilityForRemainingCoverageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LiabilityForIncurredClaimsMember" abstract="false" name="LiabilityForIncurredClaimsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TotalMember" abstract="false" name="TotalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InsuranceMember" abstract="false" name="InsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OpeningBalance" abstract="false" name="OpeningBalance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeFromInsuranceContractsAndPrivatePensions" abstract="false" name="IncomeFromInsuranceContractsAndPrivatePensions" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialIncomeFromInsuranceContractsAndPrivatePension" abstract="false" name="FinancialIncomeFromInsuranceContractsAndPrivatePension" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PremiumsReceivedClaimsAndOtherExpensesPaid" abstract="false" name="PremiumsReceivedClaimsAndOtherExpensesPaid" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ClosingBalance" abstract="false" name="ClosingBalance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ConsolidatedAndSeparateFinancialStatementAxis" abstract="true" name="ConsolidatedAndSeparateFinancialStatementAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_ConsolidatedAndSeparateFinancialStatementDomain" abstract="true" name="ConsolidatedAndSeparateFinancialStatementDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_EstimateOfPresentValueOfFutureCashFlowsMember" abstract="false" name="EstimateOfPresentValueOfFutureCashFlowsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RiskAdjustmentsForNonfinancialRiskMember" abstract="false" name="RiskAdjustmentsForNonfinancialRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TotalOneMember" abstract="false" name="TotalOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RealizationOfInsuranceContractualMargin" abstract="false" name="RealizationOfInsuranceContractualMargin" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ActuarialRemeasurements" abstract="false" name="ActuarialRemeasurements" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeFromInsuranceContractAndPrivatePension" abstract="false" name="IncomeFromInsuranceContractAndPrivatePension" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NewRecognizedInsuranceContracts" abstract="false" name="NewRecognizedInsuranceContracts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RecognizedInIncomeForThePeriod" abstract="false" name="RecognizedInIncomeForThePeriod" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RecognizedInOtherComprehensiveIncome" abstract="false" name="RecognizedInOtherComprehensiveIncome" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PrivatePensionMember" abstract="false" name="PrivatePensionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OneYearMember" abstract="false" name="OneYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ThreeYearMember" abstract="false" name="ThreeYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FiveYearMember" abstract="false" name="FiveYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TenYearMember" abstract="false" name="TenYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TwentyYearMember" abstract="false" name="TwentyYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DiscountRatesIGPM" abstract="false" name="DiscountRatesIGPM" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_DiscountRatesIPCA" abstract="false" name="DiscountRatesIPCA" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_DiscountRatesTR" abstract="false" name="DiscountRatesTR" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_AtTheEndOfEventPeriod" abstract="false" name="AtTheEndOfEventPeriod" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_After1Year" abstract="false" name="After1Year" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_After2Years" abstract="false" name="After2Years" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_After3Years" abstract="false" name="After3Years" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_After4Years" abstract="false" name="After4Years" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AccumulatedPaymentsThroughBaseDate" abstract="false" name="AccumulatedPaymentsThroughBaseDate" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LiabilitiesRecognizedInTheBalanceSheet" abstract="false" name="LiabilitiesRecognizedInTheBalanceSheet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LiabilitiesInRelationToPriorPeriods" abstract="false" name="LiabilitiesInRelationToPriorPeriods" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherEstimates" abstract="false" name="OtherEstimates" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentToPresentValue" abstract="false" name="AdjustmentToPresentValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RiskAdjustmentToNonFinancialRisk" abstract="false" name="RiskAdjustmentToNonFinancialRisk" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LiabilityForClaimsIncurredAt12312024" abstract="false" name="LiabilityForClaimsIncurredAt12312024" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AllOtherCountriesMember" abstract="false" name="AllOtherCountriesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CorporatesDebtSecuritiesMember" abstract="false" name="CorporatesDebtSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DesignatedFairValueProfitOrLossMember" abstract="false" name="DesignatedFairValueProfitOrLossMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherFinancialAssetsMember" abstract="false" name="OtherFinancialAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherCorporateDebtSecuritiesMember" abstract="true" name="OtherCorporateDebtSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialLiabilitiesMember" abstract="true" name="FinancialLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialLiabilityAtFairValueThroughProfitOrLossMember" abstract="false" name="FinancialLiabilityAtFairValueThroughProfitOrLossMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_StructuredNoteMember" abstract="false" name="StructuredNoteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OthersFinancialLiabilitiesMember" abstract="false" name="OthersFinancialLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CurrencyOptionsContractMember" abstract="false" name="CurrencyOptionsContractMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CreditDerivativesFinancialInstitutionsMember" abstract="false" name="CreditDerivativesFinancialInstitutionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherDerivativesFinancialInstrumentsMember" abstract="false" name="OtherDerivativesFinancialInstrumentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DesignatedAsFairValueThroughProfitOrLoss" abstract="false" name="DesignatedAsFairValueThroughProfitOrLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherFinancialAssetsAtFairValue" abstract="false" name="OtherFinancialAssetsAtFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NonFinancialAssetsAtFairValue" abstract="false" name="NonFinancialAssetsAtFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialLiabilitiesAtFairValuesThroughProfitOrLoss" abstract="false" name="FinancialLiabilitiesAtFairValuesThroughProfitOrLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PromissoryNoteMember" abstract="false" name="PromissoryNoteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherSecuritiesMember" abstract="false" name="OtherSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CurrencyForwardContractMember" abstract="false" name="CurrencyForwardContractMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TransfersInTheHierarchyAssetsAtFairValue" abstract="false" name="TransfersInTheHierarchyAssetsAtFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalUnrealizedGainsLossesOnFinancialAssetsFairValue" abstract="false" name="TotalUnrealizedGainsLossesOnFinancialAssetsFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_GainsLossesOnFinancialAssetsMeasuredAtFairValueMeasurementThroughOtherComprehensiveIncome" abstract="false" name="GainsLossesOnFinancialAssetsMeasuredAtFairValueMeasurementThroughOtherComprehensiveIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PurchasesFairValueMeasurementOnFinancialAssetsOtherComprehensiveIncome" abstract="false" name="PurchasesFairValueMeasurementOnFinancialAssetsOtherComprehensiveIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SettlementsFairValueMeasurementFinancialAssetsOtherComprehensiveIncome" abstract="false" name="SettlementsFairValueMeasurementFinancialAssetsOtherComprehensiveIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TransfersIntoOrOutOfLevel3OfFairValueHierarchyAssetsThroughOtherComprehensiveIncome" abstract="false" name="TransfersIntoOrOutOfLevel3OfFairValueHierarchyAssetsThroughOtherComprehensiveIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalUnrealizedGainsLossesOnFinancialAssetsFairValueThroughOtherComprehensiveIncome" abstract="false" name="TotalUnrealizedGainsLossesOnFinancialAssetsFairValueThroughOtherComprehensiveIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_GainsLossesOnFinancialAssetsMeasuredAtFairValueMeasurementThroughProfitLoss" abstract="false" name="GainsLossesOnFinancialAssetsMeasuredAtFairValueMeasurementThroughProfitLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PurchasesFairValueMeasurementFinancialAssetsAtFairValueThroughProfitLoss" abstract="false" name="PurchasesFairValueMeasurementFinancialAssetsAtFairValueThroughProfitLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SettlementsFairValueMeasurementFinancialAssetsAtFairValueThroughProfitLoss" abstract="false" name="SettlementsFairValueMeasurementFinancialAssetsAtFairValueThroughProfitLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TransfersInTheHierarchyAssetsAtFairValueThroughProfitLoss" abstract="false" name="TransfersInTheHierarchyAssetsAtFairValueThroughProfitLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalUnrealizedGainsLossesOnFinancialAssetsFairValueThroughProfitLoss" abstract="false" name="TotalUnrealizedGainsLossesOnFinancialAssetsFairValueThroughProfitLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalGainsOrLossesRealizedUnrealizedRecognizedInTheResult" abstract="false" name="TotalGainsOrLossesRealizedUnrealizedRecognizedInTheResult" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PurchaseOfDerivativeAssets" abstract="false" name="PurchaseOfDerivativeAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SettlementsOfDerivativeAssets" abstract="false" name="SettlementsOfDerivativeAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TransfersIntoLevelOfFairValueHierarchyDerivativeAssets" abstract="false" name="TransfersIntoLevelOfFairValueHierarchyDerivativeAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DerivativesAssetsTotalGainsOrLossesUnrealized" abstract="false" name="DerivativesAssetsTotalGainsOrLossesUnrealized" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DerivativeFinancialLiability" abstract="false" name="DerivativeFinancialLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RealizedOrUnrealizedGainsLossesOnDerivativeLiabilities" abstract="false" name="RealizedOrUnrealizedGainsLossesOnDerivativeLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PurchaseOfDerivativeLiabilities" abstract="false" name="PurchaseOfDerivativeLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SettlementsOfDerivativeLiabilities" abstract="false" name="SettlementsOfDerivativeLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TransfersIntoLevelOfFairValueHierarchyDerivativeLiabilities" abstract="false" name="TransfersIntoLevelOfFairValueHierarchyDerivativeLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DerivativesLiabilityTotalGainsOrLossesUnrealized" abstract="false" name="DerivativesLiabilityTotalGainsOrLossesUnrealized" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ScenarioOneMember" abstract="false" name="ScenarioOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ScenarioTwoMember" abstract="false" name="ScenarioTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ScenarioThreeMember" abstract="false" name="ScenarioThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CommoditiesIndexesAndSharesMember" abstract="false" name="CommoditiesIndexesAndSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_NonlinearRiskMember" abstract="false" name="NonlinearRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SensitivityAnalysisImpactOnAssetFairValue" abstract="false" name="SensitivityAnalysisImpactOnAssetFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ImpactStockholdersEquity" abstract="false" name="ImpactStockholdersEquity" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialAssetAtFairValue" abstract="false" name="FinancialAssetAtFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CentralBankCompulsoryDeposits" abstract="false" name="CentralBankCompulsoryDeposits" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_Securities" abstract="false" name="Securities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LoanAndLeaseOperations" abstract="false" name="LoanAndLeaseOperations" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterbankMarketFunds" abstract="false" name="InterbankMarketFunds" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InstitutionalMarketFunds" abstract="false" name="InstitutionalMarketFunds" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialGuaranteeAmount" abstract="false" name="FinancialGuaranteeAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_EstimatedValueOfFinancialAssets" abstract="false" name="EstimatedValueOfFinancialAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LaborProvisionMember" abstract="false" name="LaborProvisionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CivilLaborAndOtherProvisionsMember" abstract="false" name="CivilLaborAndOtherProvisionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LessProvisionsGuaranteedByIndemnityClause" abstract="false" name="LessProvisionsGuaranteedByIndemnityClause" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ProvisionsDuringThePeriod" abstract="false" name="ProvisionsDuringThePeriod" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestOnProvisions" abstract="false" name="InterestOnProvisions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AddProvisionsGuaranteedByIndemnityClauses" abstract="false" name="AddProvisionsGuaranteedByIndemnityClauses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DecreaseInProvisionGuaranteedByIndemnityClause" abstract="false" name="DecreaseInProvisionGuaranteedByIndemnityClause" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ChangesInPeriodReflectedInIncome" abstract="false" name="ChangesInPeriodReflectedInIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncreaseInProvisionGuaranteedByIndemnityClause" abstract="false" name="IncreaseInProvisionGuaranteedByIndemnityClause" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_INSSMember" abstract="false" name="INSSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ISSMember" abstract="false" name="ISSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_IrpjCsllPisAndCofinsMember" abstract="false" name="IrpjCsllPisAndCofinsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_IrpjandcsllMember" abstract="false" name="IrpjandcsllMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PisAndCofinsMember" abstract="false" name="PisAndCofinsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TaxAndSocialSecurityObligationsMember" abstract="false" name="TaxAndSocialSecurityObligationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ProvisionsRecognizedForTaxAndSocialSecuritiesLawsuits" abstract="false" name="ProvisionsRecognizedForTaxAndSocialSecuritiesLawsuits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DepositBalance" abstract="false" name="DepositBalance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NetEffectOnIncome" abstract="false" name="NetEffectOnIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalEstimatedRisk" abstract="false" name="TotalEstimatedRisk" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NonCompensatoryAmounts" abstract="false" name="NonCompensatoryAmounts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FundingExpenses" abstract="false" name="FundingExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ReversalOfRevenuesFromDepreciationInExcess" abstract="false" name="ReversalOfRevenuesFromDepreciationInExcess" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DeductibilityOfLossesInCreditOperations" abstract="false" name="DeductibilityOfLossesInCreditOperations" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DeductibilityOfLossInLoanOperations" abstract="false" name="DeductibilityOfLossInLoanOperations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_GuaranteesByTypeAxis" abstract="true" name="GuaranteesByTypeAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_GuaranteesByTypeDomain" abstract="true" name="GuaranteesByTypeDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CivilMember" abstract="false" name="CivilMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LabourMember" abstract="false" name="LabourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TaxMember" abstract="false" name="TaxMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TotalGuaranteesOfContingenciesProvisionsAndLegalObligationsMember" abstract="true" name="TotalGuaranteesOfContingenciesProvisionsAndLegalObligationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_GuaranteesOfContingenciesProvisionsAndLegalObligationsMember" abstract="false" name="GuaranteesOfContingenciesProvisionsAndLegalObligationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DepositsInGuarantee" abstract="false" name="DepositsInGuarantee" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InvestmentsFundQuotas" abstract="false" name="InvestmentsFundQuotas" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_Surety" abstract="false" name="Surety" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InsuranceBond" abstract="false" name="InsuranceBond" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_GuaranteeByGovernmentSecurities" abstract="false" name="GuaranteeByGovernmentSecurities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_GuaranteesRelatedToLegalProceedings" abstract="false" name="GuaranteesRelatedToLegalProceedings" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RetailBankingMember" abstract="false" name="RetailBankingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_WholesaleBankingMember" abstract="false" name="WholesaleBankingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_MarketAndCorporationMember" abstract="false" name="MarketAndCorporationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ItaUnibancoSaMember" abstract="false" name="ItaUnibancoSaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AdjustmentsMember" abstract="false" name="AdjustmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OperatingRevenues" abstract="false" name="OperatingRevenues" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestMargin" abstract="false" name="InterestMargin" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IncomeRelatedToInsuranceAndPrivatePensionOperationsBeforeClaimAndSellingExpenses" abstract="false" name="IncomeRelatedToInsuranceAndPrivatePensionOperationsBeforeClaimAndSellingExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CostOfCredit" abstract="false" name="CostOfCredit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ClaimsAndBenefitsPaidNetOfReinsuranceRecoveries" abstract="false" name="ClaimsAndBenefitsPaidNetOfReinsuranceRecoveries" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OperatingMargin" abstract="false" name="OperatingMargin" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NonInterestExpense1" abstract="false" name="NonInterestExpense1" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestMarginAndSimilarIncomeAndExpenses" abstract="false" name="InterestMarginAndSimilarIncomeAndExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NetGainsLossOnInvestmentSecuritiesAndDerivatives" abstract="false" name="NetGainsLossOnInvestmentSecuritiesAndDerivatives" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ResultsFromForeignExchangeOperation" abstract="false" name="ResultsFromForeignExchangeOperation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DepreciationAndAmortizationExpenses" abstract="false" name="DepreciationAndAmortizationExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InterestAndSimilarIncomeAndExpenses" abstract="false" name="InterestAndSimilarIncomeAndExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NetGainLossOnInvestmentSecuritiesAndDerivatives" abstract="false" name="NetGainLossOnInvestmentSecuritiesAndDerivatives" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdjustmentsForForeignExchangeGainsLosses" abstract="false" name="AdjustmentsForForeignExchangeGainsLosses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DepreciationsAndAmortisationExpenses" abstract="false" name="DepreciationsAndAmortisationExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AbroadMember" abstract="false" name="AbroadMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_IncomeRelatedToFinancialOperations" abstract="false" name="IncomeRelatedToFinancialOperations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_MaximumRevenuePercentageRepresentedByClients" abstract="false" name="MaximumRevenuePercentageRepresentedByClients" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_AssociatesAndJointVenturesMember" abstract="false" name="AssociatesAndJointVenturesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LnterbankInvestments" abstract="false" name="LnterbankInvestments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LoanOperations" abstract="false" name="LoanOperations" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SecuritiesAndDerivativesAssetAndLiabilityPosition" abstract="false" name="SecuritiesAndDerivativesAssetAndLiabilityPosition" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherAsset" abstract="false" name="OtherAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalAsset" abstract="false" name="TotalAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_Deposit" abstract="false" name="Deposit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DepositsReceivedUnderSecuritiesRepurchaseAgreements" abstract="false" name="DepositsReceivedUnderSecuritiesRepurchaseAgreements" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FundsFromAcceptancesAndIssuanceOfSecurities" abstract="false" name="FundsFromAcceptancesAndIssuanceOfSecurities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LnterbankAndLnterbranchAccountsAssetsAndLiabilities" abstract="false" name="LnterbankAndLnterbranchAccountsAssetsAndLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OthersLiabilities" abstract="false" name="OthersLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_Liability" abstract="false" name="Liability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_Income" abstract="false" name="Income" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_Expenses" abstract="false" name="Expenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherOperatingRevenuesExpenses" abstract="false" name="OtherOperatingRevenuesExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalIncome" abstract="false" name="TotalIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RelatedPartyTransactionsAssets" abstract="false" name="RelatedPartyTransactionsAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RelatedPartyTransactionsLiability" abstract="false" name="RelatedPartyTransactionsLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RelatedPartyTransactionsExpense" abstract="false" name="RelatedPartyTransactionsExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ManagementMembersMembersOfTheAuditCommitteeAndTheBoardOfDirectorsMember" abstract="false" name="ManagementMembersMembersOfTheAuditCommitteeAndTheBoardOfDirectorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FeesMember" abstract="false" name="FeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_EmployeeProfitSharingPlanMember" abstract="false" name="EmployeeProfitSharingPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_GrantingOfTheSharebasedPaymentMember" abstract="false" name="GrantingOfTheSharebasedPaymentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialAssetsAtAmortisedCostAndAtFairValueThroughOtherComprehensiveIncomeMember" abstract="false" name="FinancialAssetsAtAmortisedCostAndAtFairValueThroughOtherComprehensiveIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PessimisticScenarioMember" abstract="false" name="PessimisticScenarioMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BaseCaseScenarioMember" abstract="false" name="BaseCaseScenarioMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OptimisticScenarioMember" abstract="false" name="OptimisticScenarioMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialAssetAtAmortizedCosts" abstract="false" name="FinancialAssetAtAmortizedCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ExpectedCreditLoss" abstract="false" name="ExpectedCreditLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ReductionIncreaseOfExpectedLoss" abstract="false" name="ReductionIncreaseOfExpectedLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialInstrumentAssets" abstract="false" name="FinancialInstrumentAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialAssetsAtAmortizedCost" abstract="false" name="FinancialAssetsAtAmortizedCost" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SecuritiesOnReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" abstract="false" name="SecuritiesOnReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LoanOperationsAndLeaseOperationsPortfolio" abstract="false" name="LoanOperationsAndLeaseOperationsPortfolio" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LoansAndLeaseOperationsNetOfAllowanceProvisionForExpectedCreditLoss" abstract="false" name="LoansAndLeaseOperationsNetOfAllowanceProvisionForExpectedCreditLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SecuritiesHeldForTradingOfFinancialAssetsAtFairValueThroughOtherComprehensiveIncomeDesignatedRecognition" abstract="false" name="SecuritiesHeldForTradingOfFinancialAssetsAtFairValueThroughOtherComprehensiveIncomeDesignatedRecognition" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialAssetAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition" abstract="false" name="FinancialAssetAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SecuritiesHeldForTradingOfFinancialAssetsAtFairValueThroughProfitOrLossDesignatedRecognition" abstract="false" name="SecuritiesHeldForTradingOfFinancialAssetsAtFairValueThroughProfitOrLossDesignatedRecognition" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DerivativesHeldTradingOfFinancialAssetsAtFairValueThroughProfitOrLossDesignatedRecognition" abstract="false" name="DerivativesHeldTradingOfFinancialAssetsAtFairValueThroughProfitOrLossDesignatedRecognition" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherFinancialAssetsThroughProfitOrLoss" abstract="false" name="OtherFinancialAssetsThroughProfitOrLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ProvisionForExpectedLossOfFinancialLiabilities" abstract="false" name="ProvisionForExpectedLossOfFinancialLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OffBalanceSheet" abstract="false" name="OffBalanceSheet" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OffBalanceSheetExposureFinancialGuarantees" abstract="false" name="OffBalanceSheetExposureFinancialGuarantees" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LettersOfCreditAndCreditsToBeReleased" abstract="false" name="LettersOfCreditAndCreditsToBeReleased" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CreditRiskExposure" abstract="false" name="CreditRiskExposure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_IndustryAndCommerceMember" abstract="false" name="IndustryAndCommerceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ServicesMember" abstract="false" name="ServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherSectorsMember" abstract="false" name="OtherSectorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LoanOperationsAndLeaseOperationsValue" abstract="false" name="LoanOperationsAndLeaseOperationsValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LoanOperationsAndLeaseOperationsPercentage" abstract="false" name="LoanOperationsAndLeaseOperationsPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_RiskAndCapitalManagementTable" abstract="true" name="RiskAndCapitalManagementTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_EntitySectorIndustryClassificationsSectorsAxis" abstract="true" name="EntitySectorIndustryClassificationsSectorsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_EntitySectorIndustryClassificationsSectorDomain" abstract="true" name="EntitySectorIndustryClassificationsSectorDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PublicSectorMember" abstract="false" name="PublicSectorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialMember" abstract="false" name="FinancialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_RiskAndCapitalManagementLineItems" abstract="true" name="RiskAndCapitalManagementLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_MaximumExposureOfOtherFinancialAssets" abstract="false" name="MaximumExposureOfOtherFinancialAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OtherFinancialAssetsPercentage" abstract="false" name="OtherFinancialAssetsPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_StageOneMember" abstract="false" name="StageOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_StageTwoMember" abstract="false" name="StageTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_StageThreeMember" abstract="false" name="StageThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CommitmentsToBeReleasedMember" abstract="false" name="CommitmentsToBeReleasedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TotalAssetsMember" abstract="false" name="TotalAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_StageOneLoanMember" abstract="false" name="StageOneLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_StageTwoLoanMember" abstract="false" name="StageTwoLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_StageThreeLoanMember" abstract="false" name="StageThreeLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_LowerRiskMember" abstract="false" name="LowerRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_MediumMember" abstract="false" name="MediumMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_HigherRiskMember" abstract="false" name="HigherRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CreditImpairedMember" abstract="false" name="CreditImpairedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CountryOfLatinAmericaMember" abstract="false" name="CountryOfLatinAmericaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_EurobondsAndOtherMember" abstract="false" name="EurobondsAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialAssetsAtFairValueThroughProfitOrLossMember" abstract="false" name="FinancialAssetsAtFairValueThroughProfitOrLossMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SatisfactoryRiskMember" abstract="false" name="SatisfactoryRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_MicroSmallAndMediumCompaniesAndCorporatesMember" abstract="false" name="MicroSmallAndMediumCompaniesAndCorporatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OverCollateralizedAssetsCarryingValueOfTheAssets" abstract="false" name="OverCollateralizedAssetsCarryingValueOfTheAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OverCollateralizedAssetsFairValueOfCollateral" abstract="false" name="OverCollateralizedAssetsFairValueOfCollateral" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_UnderCollateralizedAssetsCarryingValueOfTheAssets" abstract="false" name="UnderCollateralizedAssetsCarryingValueOfTheAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_UnderCollateralizedAssetsFairValueOfCollateral" abstract="false" name="UnderCollateralizedAssetsFairValueOfCollateral" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LCRMember" abstract="false" name="LCRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_NSFRMember" abstract="false" name="NSFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SubordinatedDebttierICapitalMember" abstract="false" name="SubordinatedDebttierICapitalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SubordinatedDebttierIICapitalMember" abstract="false" name="SubordinatedDebttierIICapitalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_UnsecuredLoansMember" abstract="true" name="UnsecuredLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TotalAssetsRepossessed" abstract="false" name="TotalAssetsRepossessed" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_VaRCalculationConfidenceLevelPercentage" abstract="false" name="VaRCalculationConfidenceLevelPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_VaRCalculationConfidenceLevelPeriod" abstract="false" name="VaRCalculationConfidenceLevelPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="itub_PercentageOfVaRTotalStockholdersEquity" abstract="false" name="PercentageOfVaRTotalStockholdersEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_PercentageOfAggregateFundsFromCustomersAvailableOnDemand" abstract="false" name="PercentageOfAggregateFundsFromCustomersAvailableOnDemand" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_FundsFromClients" abstract="false" name="FundsFromClients" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotaledAverageSovereignSecurities" abstract="false" name="TotaledAverageSovereignSecurities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_NetCashOutflowsTotaledAverage" abstract="false" name="NetCashOutflowsTotaledAverage" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PercentageOfFinancialAssets" abstract="false" name="PercentageOfFinancialAssets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_AvailableStableFunds" abstract="false" name="AvailableStableFunds" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RequiredStableFunding" abstract="false" name="RequiredStableFunding" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SubordinatedDebtTierICapital" abstract="false" name="SubordinatedDebtTierICapital" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SubordinatedDebtTierIICapital" abstract="false" name="SubordinatedDebtTierIICapital" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalCapitalRatio" abstract="false" name="TotalCapitalRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_PercentageOfReinsurancePremiumsOperations" abstract="false" name="PercentageOfReinsurancePremiumsOperations" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_SurplusCapitalInRelationToTheMinimumReferentialEquityRequired" abstract="false" name="SurplusCapitalInRelationToTheMinimumReferentialEquityRequired" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AdditionalTierOneCapitalRequired" abstract="false" name="AdditionalTierOneCapitalRequired" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PercentageOfAdjustedCapitalRatio" abstract="false" name="PercentageOfAdjustedCapitalRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_PercentageOfFixedAssetsRatio" abstract="false" name="PercentageOfFixedAssetsRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_IncreaseDecreaseInReferentialEquity" abstract="false" name="IncreaseDecreaseInReferentialEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ReferringToAmounts" abstract="false" name="ReferringToAmounts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_AverageMember" abstract="false" name="AverageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinancialsLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" abstract="false" name="FinancialsLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InstitutionalMarketDebts" abstract="false" name="InstitutionalMarketDebts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PremiumBondsPlans" abstract="false" name="PremiumBondsPlans" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialLiabilitiesAtFairValueThroughProfitOrLosses" abstract="false" name="FinancialLiabilitiesAtFairValueThroughProfitOrLosses" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CumulativeDifference" abstract="false" name="CumulativeDifference" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_RatioOfCumulativeDifferenceToTotalInterestBearingAssets" abstract="false" name="RatioOfCumulativeDifferenceToTotalInterestBearingAssets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_DemandDepositMember" abstract="false" name="DemandDepositMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SavingDepositsMember" abstract="false" name="SavingDepositsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherDepositMember" abstract="false" name="OtherDepositMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SecurityDepositsMember" abstract="false" name="SecurityDepositsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SubordinatedsDebtMember" abstract="false" name="SubordinatedsDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PercentageOfFundingFromClients" abstract="false" name="PercentageOfFundingFromClients" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_FundsFromOwnIssue" abstract="false" name="FundsFromOwnIssue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FundingFromCustomers" abstract="false" name="FundingFromCustomers" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_UndiscountedCashFlowsMember" abstract="false" name="UndiscountedCashFlowsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ForeignMember" abstract="false" name="ForeignMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ForwardsMember" abstract="false" name="ForwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OptionsMember" abstract="false" name="OptionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SwapsMember" abstract="true" name="SwapsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherDerivativesMember" abstract="false" name="OtherDerivativesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TotalFinancialLiabilities" abstract="false" name="TotalFinancialLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_FinancialGuarantees" abstract="false" name="FinancialGuarantees" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CommitmentsToBeReleased" abstract="false" name="CommitmentsToBeReleased" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OffBalanceSheetItem" abstract="false" name="OffBalanceSheetItem" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_LettersOfCredit" abstract="false" name="LettersOfCredit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CommonEquityTierOneCapitalAmount" abstract="false" name="CommonEquityTierOneCapitalAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TierOneCommonEquityTierOneAndAdditionalTierOneCapital" abstract="false" name="TierOneCommonEquityTierOneAndAdditionalTierOneCapital" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ReferentialEquity" abstract="false" name="ReferentialEquity" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TotalRiskWeightedAssetsRWA" abstract="false" name="TotalRiskWeightedAssetsRWA" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_CommonEquityTier1Ratio" abstract="false" name="CommonEquityTier1Ratio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_Tier1Ratio" abstract="false" name="Tier1Ratio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_CapitalConservationBufferRequirement" abstract="false" name="CapitalConservationBufferRequirement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_CountercyclicalBufferRequirementPercentage" abstract="false" name="CountercyclicalBufferRequirementPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_BankGSIBAndOrDSIBAdditionalRequirements" abstract="false" name="BankGSIBAndOrDSIBAdditionalRequirements" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_TotalOfBankCET1SpecificBufferRequirements" abstract="false" name="TotalOfBankCET1SpecificBufferRequirements" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="itub_CreditRiskAxis" abstract="true" name="CreditRiskAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_CreditRiskDomain" abstract="true" name="CreditRiskDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CreditRiskExcludingCounterpartyCreditRiskMember" abstract="false" name="CreditRiskExcludingCounterpartyCreditRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CreditRiskStandardisedApproachCreditRiskMember" abstract="false" name="CreditRiskStandardisedApproachCreditRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CreditRiskAdvancedInternalRatingBasedApproachCreditRiskMember" abstract="false" name="CreditRiskAdvancedInternalRatingBasedApproachCreditRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CounterpartyCreditRiskMember" abstract="false" name="CounterpartyCreditRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_EquityInvestmentsInFundsLookThroughApproachMember" abstract="false" name="EquityInvestmentsInFundsLookThroughApproachMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_EquityInvestmentInFundsFallBackApproachMember" abstract="false" name="EquityInvestmentInFundsFallBackApproachMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SecuritisationExposuresInBankingBookMember" abstract="false" name="SecuritisationExposuresInBankingBookMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OperationalRiskMember" abstract="false" name="OperationalRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_AmountsBelowTheThresholdsForDeductionMember" abstract="false" name="AmountsBelowTheThresholdsForDeductionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_CounterpartyCreditRiskAxis" abstract="true" name="CounterpartyCreditRiskAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_CounterpartyCreditRiskDomain" abstract="true" name="CounterpartyCreditRiskDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OtherCounterpartyCreditRiskMember" abstract="false" name="OtherCounterpartyCreditRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_MarketRiskAxis" abstract="true" name="MarketRiskAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_MarketRiskDomain" abstract="true" name="MarketRiskDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_StandardisedApproachMember" abstract="false" name="StandardisedApproachMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_InternalModelApproachMember" abstract="false" name="InternalModelApproachMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_TypesOfInsuranceContractsAxis" abstract="true" name="TypesOfInsuranceContractsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_TypesOfInsuranceContractsDomainDomain" abstract="true" name="TypesOfInsuranceContractsDomainDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ImpactInIncomeInsuranceMember" abstract="false" name="ImpactInIncomeInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ImpactInIncomePrivatePensionMember" abstract="false" name="ImpactInIncomePrivatePensionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ImpactInStockholdersEquityInsuranceMember" abstract="false" name="ImpactInStockholdersEquityInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_ImpactInStockholdersEquityPrivatePensionMember" abstract="false" name="ImpactInStockholdersEquityPrivatePensionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_DiscountRateIncrease" abstract="false" name="DiscountRateIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_DiscountRateDecrease" abstract="false" name="DiscountRateDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_BiometricTablesIncrease" abstract="false" name="BiometricTablesIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_BiometricTablesDecrease" abstract="false" name="BiometricTablesDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ClaimsRatesIncrease" abstract="false" name="ClaimsRatesIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_ClaimsRatesDecrease" abstract="false" name="ClaimsRatesDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_TwoYearMember" abstract="false" name="TwoYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FourYearMember" abstract="false" name="FourYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_OverFiveYearsMember" abstract="false" name="OverFiveYearsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_Insurance" abstract="false" name="Insurance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_PrivatePension" abstract="false" name="PrivatePension" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_InsuranceAndPrivatePension" abstract="false" name="InsuranceAndPrivatePension" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_SupplementaryInformationTable" abstract="true" name="SupplementaryInformationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="itub_LegalEntitiesOfCapitalizationAndCreditFinancingAndInvestmentCompaniesMember" abstract="true" name="LegalEntitiesOfCapitalizationAndCreditFinancingAndInvestmentCompaniesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_FinanceiraItauCBDS.A.CreditoFinanciamentoEInvestimentoMember" abstract="true" name="FinanceiraItauCBDS.A.CreditoFinanciamentoEInvestimentoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_BancoINVESTCREDUnibancoS.A.Member" abstract="true" name="BancoINVESTCREDUnibancoS.A.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_SupplementaryInformationLineItems" abstract="true" name="SupplementaryInformationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="itub_PercentageOfSocialContributionOnNetProfits" abstract="false" name="PercentageOfSocialContributionOnNetProfits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="itub_ProportionOfOwnershipInterestAmount" abstract="false" name="ProportionOfOwnershipInterestAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="itub_OwnershipInterestAcquiringPeriod" abstract="false" name="OwnershipInterestAcquiringPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="itub_ITBHoldingBrasilParticipacoesLtda.Member" abstract="true" name="ITBHoldingBrasilParticipacoesLtda.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="itub_PercentageOfInterestOwnedAfterTheAcquisition" abstract="false" name="PercentageOfInterestOwnedAfterTheAcquisition" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
</xs:schema>
