diff --git a/app/src/main/java/io/horizontalsystems/bankwallet/modules/tonconnect/TonConnectSendRequestViewModel.kt b/app/src/main/java/io/horizontalsystems/bankwallet/modules/tonconnect/TonConnectSendRequestViewModel.kt
index 9548baf593..73604f4fdc 100644
--- a/app/src/main/java/io/horizontalsystems/bankwallet/modules/tonconnect/TonConnectSendRequestViewModel.kt
+++ b/app/src/main/java/io/horizontalsystems/bankwallet/modules/tonconnect/TonConnectSendRequestViewModel.kt
@@ -121,6 +121,16 @@ class TonConnectSendRequestViewModel(
             tonKitWrapper = it
         }
 
+        val accountBalance = tonKitWrapper.tonKit.account?.balance
+        if (accountBalance != null){
+            val totalSentAmount = sendRequestEntity.messages.sumOf { it.amount }
+            if (totalSentAmount > accountBalance){
+                error = TonConnectSendRequestError.InvalidData("Transaction amount exceeds available balance")
+                responseBadRequest(sendRequestEntity)
+                return
+            }
+        }
+
         val tonEvent = try {
             val event = transactionSigner.getDetails(sendRequestEntity, tonWallet)
             tonEvent = event