diff --git a/app/Models/Traits/ChargesFees.php b/app/Models/Traits/ChargesFees.php
index d3085bab95a4..5b4a9fdf6034 100644
--- a/app/Models/Traits/ChargesFees.php
+++ b/app/Models/Traits/ChargesFees.php
@@ -28,15 +28,14 @@ trait ChargesFees
         }
 
         if ($settings->fee_percent) {
+            $amount = $this->partial > 0 ? $this->partial : $this->balance;
+
             // prevent charging taxes twice on the surcharge
-            if ($location == FEE_LOCATION_ITEM) {
-                $amount = $this->partial > 0 ? $this->partial : $this->balance;
-            } else {
-                $amount = $this->amount;
+            if ($location != FEE_LOCATION_ITEM) {
                 if ($this->$taxField) {
                     $taxAmount = 0;
                     foreach ($this->getTaxes() as $key => $tax) {
-                        $taxAmount += $tax['amount'];
+                        $taxAmount += $tax['amount'] - $tax['paid'];
                     }
                     $amount -= $taxAmount;
                 }