diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 39cb7cd948..badb2a84f4 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -187,6 +187,9 @@
     <string name="prepare_transaction_error_incorrect_destination">Incorrect destination wallet address</string>
     <string name="prepare_transaction_error_same_address">Destination wallet address equal source address</string>
     <string name="prepare_transaction_error_amount_empty">Amount is empty</string>
+    <string name="prepare_transaction_warning_last_signature">Only one signature left</string>
+    <string name="prepare_transaction_warning_send_full_amount">You need to send all available funds in this transaction</string>
+
 
     <!-- ConfirmTransaction -->
     <string name="confirm_transaction_hint_target_address">target wallet address</string>
diff --git a/app/src/tangemAccess/java/com/tangem/ui/PrepareTransactionFragment.kt b/app/src/tangemAccess/java/com/tangem/ui/PrepareTransactionFragment.kt
index cdea28160d..48a385a3d8 100644
--- a/app/src/tangemAccess/java/com/tangem/ui/PrepareTransactionFragment.kt
+++ b/app/src/tangemAccess/java/com/tangem/ui/PrepareTransactionFragment.kt
@@ -54,8 +54,18 @@ class PrepareTransactionFragment : BaseFragment(), NavigationResultListener, Nfc
             rgIncFee.visibility = View.VISIBLE
         }
 
-        if (ctx.card!!.remainingSignatures < 2)
+        if (ctx.card!!.remainingSignatures < 2) {
             etAmount.isEnabled = false
+        }
+
+        if (ctx.card.remainingSignatures == 1) {
+            androidx.appcompat.app.AlertDialog.Builder(requireContext())
+                    .setTitle(R.string.prepare_transaction_warning_last_signature)
+                    .setMessage(R.string.prepare_transaction_warning_send_full_amount)
+                    .setPositiveButton(R.string.general_ok) { _, _ -> }
+                    .create()
+                    .show()
+        }
 
         tvCurrency.text = engine.balance.currency
         etAmount.setText(engine.balance.toValueString())
@@ -144,7 +154,7 @@ class PrepareTransactionFragment : BaseFragment(), NavigationResultListener, Nfc
             val schemeSplit = code!!.split(":")
             when (schemeSplit.size) {
                 2 -> {
-                    if (ctx.blockchain.officialName.toLowerCase(Locale.ROOT).replace("\\s","") == schemeSplit[0]) {
+                    if (ctx.blockchain.officialName.toLowerCase(Locale.ROOT).replace("\\s", "") == schemeSplit[0]) {
                         val uri = Uri.parse(schemeSplit[1])
                         etWallet?.setText(uri.path)
 //                        val amount = uri.getQueryParameter("amount") //TODO: enable after redesign