diff --git a/src/CONST.ts b/src/CONST.ts
index fcbb97cfdb01..ce1295d2d71f 100755
--- a/src/CONST.ts
+++ b/src/CONST.ts
@@ -3112,6 +3112,8 @@ const CONST = {
      */
     ADDITIONAL_ALLOWED_CHARACTERS: 20,
 
+    VALIDATION_REIMBURSEMENT_INPUT_LIMIT: 20,
+
     REFERRAL_PROGRAM: {
         CONTENT_TYPES: {
             MONEY_REQUEST: 'request',
diff --git a/src/pages/ReimbursementAccount/ConnectBankAccount/components/BankAccountValidationForm.tsx b/src/pages/ReimbursementAccount/ConnectBankAccount/components/BankAccountValidationForm.tsx
index 0e8192b60416..6a18fba22bf9 100644
--- a/src/pages/ReimbursementAccount/ConnectBankAccount/components/BankAccountValidationForm.tsx
+++ b/src/pages/ReimbursementAccount/ConnectBankAccount/components/BankAccountValidationForm.tsx
@@ -113,6 +113,7 @@ function BankAccountValidationForm({requiresTwoFactorAuth, reimbursementAccount,
                     containerStyles={[styles.mb6]}
                     inputMode={CONST.INPUT_MODE.DECIMAL}
                     label={`${translate('connectBankAccountStep.validationInputLabel')} 1`}
+                    maxLength={CONST.VALIDATION_REIMBURSEMENT_INPUT_LIMIT}
                 />
                 <InputWrapper
                     InputComponent={TextInput}
@@ -121,6 +122,7 @@ function BankAccountValidationForm({requiresTwoFactorAuth, reimbursementAccount,
                     containerStyles={[styles.mb6]}
                     inputMode={CONST.INPUT_MODE.DECIMAL}
                     label={`${translate('connectBankAccountStep.validationInputLabel')} 2`}
+                    maxLength={CONST.VALIDATION_REIMBURSEMENT_INPUT_LIMIT}
                 />
                 <InputWrapper
                     InputComponent={TextInput}
@@ -129,6 +131,7 @@ function BankAccountValidationForm({requiresTwoFactorAuth, reimbursementAccount,
                     containerStyles={[styles.mb6]}
                     inputMode={CONST.INPUT_MODE.DECIMAL}
                     label={`${translate('connectBankAccountStep.validationInputLabel')} 3`}
+                    maxLength={CONST.VALIDATION_REIMBURSEMENT_INPUT_LIMIT}
                 />
             </View>
             {!requiresTwoFactorAuth && (