diff --git a/app/src/main/java/cash/z/ecc/android/ui/send/SendAddressFragment.kt b/app/src/main/java/cash/z/ecc/android/ui/send/SendAddressFragment.kt
index 484506a..d8a9526 100644
--- a/app/src/main/java/cash/z/ecc/android/ui/send/SendAddressFragment.kt
+++ b/app/src/main/java/cash/z/ecc/android/ui/send/SendAddressFragment.kt
@@ -150,8 +150,8 @@ class SendAddressFragment : BaseFragment<FragmentSendAddressBinding>(),
 
     private fun onBalanceUpdated(balance: WalletBalance) {
         binding.textLayoutAmount.helperText =
-            "You have ${balance.availableZatoshi.convertZatoshiToZecString(8)} available"
-        maxZatoshi = balance.availableZatoshi - ZcashSdk.MINERS_FEE_ZATOSHI
+            "You have ${balance.availableZatoshi.coerceAtLeast(0L).convertZatoshiToZecString(8)} available"
+        maxZatoshi = (balance.availableZatoshi - ZcashSdk.MINERS_FEE_ZATOSHI).coerceAtLeast(0L)
     }
 
     override fun onPrimaryClipChanged() {