diff --git a/app/src/main/java/to/bitkit/viewmodels/AppViewModel.kt b/app/src/main/java/to/bitkit/viewmodels/AppViewModel.kt
index b4cdfb8d1..bc026b863 100644
--- a/app/src/main/java/to/bitkit/viewmodels/AppViewModel.kt
+++ b/app/src/main/java/to/bitkit/viewmodels/AppViewModel.kt
@@ -1146,13 +1146,15 @@ class AppViewModel @Inject constructor(
         if (amount == 0uL) return false
 
         return when (payMethod) {
-            SendMethod.LIGHTNING -> when (val lnurl = _sendUiState.value.lnurl) {
-                null -> lightningRepo.canSend(amount)
-                is LnurlParams.LnurlWithdraw -> amount < lnurl.data.maxWithdrawableSat()
-                is LnurlParams.LnurlPay -> {
-                    val maxSat = lnurl.data.maxSendableSat()
-
-                    amount <= maxSat && lightningRepo.canSend(amount)
+            SendMethod.LIGHTNING -> {
+                val maxSendable = maxSendableLightningSats()
+                when (val lnurl = _sendUiState.value.lnurl) {
+                    null -> amount <= maxSendable && lightningRepo.canSend(amount)
+                    is LnurlParams.LnurlWithdraw -> amount < lnurl.data.maxWithdrawableSat()
+                    is LnurlParams.LnurlPay -> {
+                        val maxSat = lnurl.data.maxSendableSat()
+                        amount <= maxSat && amount <= maxSendable && lightningRepo.canSend(amount)
+                    }
                 }
             }
 
@@ -1160,6 +1162,12 @@ class AppViewModel @Inject constructor(
         }
     }
 
+    private fun maxSendableLightningSats(): ULong {
+        val max = walletRepo.balanceState.value.maxSendLightningSats
+        val fee = _sendUiState.value.estimatedRoutingFee
+        return max.safe() - fee.safe()
+    }
+
     private fun onPasteClick() {
         val data = context.getClipboardText()?.trim()
         if (data.isNullOrBlank()) {