diff --git a/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/BankingRepository.kt b/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/BankingRepository.kt
index f6b3665..ad6dd0b 100644
--- a/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/BankingRepository.kt
+++ b/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/BankingRepository.kt
@@ -31,6 +31,8 @@ interface BankingRepository {
 
     suspend fun updateBank(bank: BankAccessEntity, loginName: String, password: String, bankName: String?)
 
+    suspend fun updateBank(bank: BankAccessEntity, clientData: String?)
+
     suspend fun updateAccount(account: BankAccountEntity, userSetDisplayName: String?, hideAccount: Boolean, includeInAutomaticAccountsUpdate: Boolean)
 
     suspend fun updateAccount(account: BankAccountEntity, balance: Amount, lastAccountUpdateTime: Instant, retrievedTransactionsFrom: LocalDate?)
diff --git a/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/InMemoryBankingRepository.kt b/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/InMemoryBankingRepository.kt
index 1e1aeb5..97a835a 100644
--- a/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/InMemoryBankingRepository.kt
+++ b/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/InMemoryBankingRepository.kt
@@ -55,6 +55,10 @@ class InMemoryBankingRepository(
         // no-op
     }
 
+    override suspend fun updateBank(bank: BankAccessEntity, clientData: String?) {
+        // no-op
+    }
+
     override suspend fun updateAccount(account: BankAccountEntity, userSetDisplayName: String?, hideAccount: Boolean, includeInAutomaticAccountsUpdate: Boolean) {
         // no-op
     }
diff --git a/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/SqliteBankingRepository.kt b/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/SqliteBankingRepository.kt
index e730e84..b0087d0 100644
--- a/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/SqliteBankingRepository.kt
+++ b/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/SqliteBankingRepository.kt
@@ -97,7 +97,7 @@ open class SqliteBankingRepository : BankingRepository {
 
         return bankQueries.getAllBanks { id, domesticBankCode, loginName, password, bankName, bic, customerName, userId, selectedTanMethodIdentifier, selectedTanMediumIdentifier, bankingGroup, serverAddress, countryCode, clientData, userSetDisplayName, displayIndex, iconUrl, wrongCredentialsEntered ->
             BankAccessEntity(id, domesticBankCode, loginName, password, bankName, bic, customerName, userId, getAccountsOfBank(id, bankAccounts, holdings), selectedTanMethodIdentifier, tanMethods[id] ?: mutableListOf(), selectedTanMediumIdentifier, tanMedia[id] ?: mutableListOf(),
-                bankingGroup?.let { BankingGroup.valueOf(it) }, serverAddress, countryCode, userSetDisplayName, displayIndex.toInt(), iconUrl, wrongCredentialsEntered)
+                bankingGroup?.let { BankingGroup.valueOf(it) }, serverAddress, countryCode, userSetDisplayName, displayIndex.toInt(), iconUrl, wrongCredentialsEntered, clientData)
         }.executeAsList()
     }
 
@@ -111,7 +111,7 @@ open class SqliteBankingRepository : BankingRepository {
         return bankQueries.transactionWithResult {
             bankQueries.insertBank(bank.domesticBankCode, bank.loginName, bank.password, bank.bankName, bank.bic,
                 bank.customerName, bank.userId, bank.selectedTanMethodIdentifier, bank.selectedTanMediumIdentifier,
-                bank.bankingGroup?.name, bank.serverAddress, bank.countryCode, null, bank.userSetDisplayName, bank.displayIndex.toLong(), bank.iconUrl, bank.wrongCredentialsEntered
+                bank.bankingGroup?.name, bank.serverAddress, bank.countryCode, bank.clientData, bank.userSetDisplayName, bank.displayIndex.toLong(), bank.iconUrl, bank.wrongCredentialsEntered
             )
 
             val bankId = getLastInsertedId() // getLastInsertedId() / last_insert_rowid() has to be called in a transaction with the insert operation, otherwise it will not work
@@ -141,6 +141,14 @@ open class SqliteBankingRepository : BankingRepository {
         }
     }
 
+    override suspend fun updateBank(bank: BankAccessEntity, clientData: String?) {
+        bankQueries.transaction {
+            if (clientData != null) {
+                bankQueries.updateBankClientData(clientData, bank.id)
+            }
+        }
+    }
+
     override suspend fun updateAccount(account: BankAccountEntity, userSetDisplayName: String?, hideAccount: Boolean, includeInAutomaticAccountsUpdate: Boolean) {
         bankQueries.transaction {
             if (account.userSetDisplayName != userSetDisplayName) {
diff --git a/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/entities/BankAccessEntity.kt b/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/entities/BankAccessEntity.kt
index 819eb70..718a931 100644
--- a/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/entities/BankAccessEntity.kt
+++ b/BankingPersistence/src/commonMain/kotlin/net/codinux/banking/persistence/entities/BankAccessEntity.kt
@@ -32,7 +32,9 @@ class BankAccessEntity(
     displayIndex: Int = 0,
 
     iconUrl: String? = null,
-    wrongCredentialsEntered: Boolean = false
+    wrongCredentialsEntered: Boolean = false,
+
+    clientData: String? = null
 ) : BankAccess(domesticBankCode, loginName, password, bankName, bic, customerName, userId, accounts, selectedTanMethodIdentifier, tanMethods, selectedTanMediumIdentifier, tanMedia, bankingGroup, serverAddress, countryCode) {
 
     init {
@@ -41,6 +43,8 @@ class BankAccessEntity(
 
         this.iconUrl = iconUrl
         this.wrongCredentialsEntered = wrongCredentialsEntered
+
+        this.clientData = clientData
     }
 
 
diff --git a/BankingPersistence/src/commonMain/sqldelight/net/codinux/banking/persistence/Bank.sq b/BankingPersistence/src/commonMain/sqldelight/net/codinux/banking/persistence/Bank.sq
index 1c22fa1..d5c4a55 100644
--- a/BankingPersistence/src/commonMain/sqldelight/net/codinux/banking/persistence/Bank.sq
+++ b/BankingPersistence/src/commonMain/sqldelight/net/codinux/banking/persistence/Bank.sq
@@ -95,6 +95,12 @@ SET userSetDisplayName = ?
 WHERE id = ?;
 
 
+updateBankClientData:
+UPDATE BankAccess
+SET clientData = ?
+WHERE id = ?;
+
+
 deleteBank {
     DELETE FROM TanMethod
     WHERE bankId = :bankId;
diff --git a/composeApp/src/commonMain/kotlin/net/codinux/banking/ui/service/BankingService.kt b/composeApp/src/commonMain/kotlin/net/codinux/banking/ui/service/BankingService.kt
index 9186580..9e53c12 100644
--- a/composeApp/src/commonMain/kotlin/net/codinux/banking/ui/service/BankingService.kt
+++ b/composeApp/src/commonMain/kotlin/net/codinux/banking/ui/service/BankingService.kt
@@ -281,6 +281,8 @@ class BankingService(
                 bankingRepository.updateAccount(account, response.balance ?: account.balance, response.transactionsRetrievalTime, response.retrievedTransactionsFrom ?: account.retrievedTransactionsFrom)
             }
 
+            bankingRepository.updateBank(bank, bank.clientData)
+
             notifyBanksListUpdated() // notify about updated values like account balance
         } catch (e: Throwable) {
             log.error(e) { "Could not save updated account transactions for bank $bank" }