fixed #695

app/Models/Expense/Bill.php

@@ -23,7 +23,7 @@ class Bill extends Model
      *
      * @var array
      */
-    protected $appends = ['attachment', 'discount', 'paid'];
+    protected $appends = ['attachment', 'amount_without_tax', 'discount', 'paid'];
 
     protected $dates = ['deleted_at', 'billed_at', 'due_at'];
 
@@ -201,6 +201,22 @@ class Bill extends Model
         return $percent;
     }
 
+    /**
+     * Get the amount without tax.
+     *
+     * @return string
+     */
+    public function getAmountWithoutTaxAttribute()
+    {
+        $amount = $this->amount;
+
+        $this->totals()->where('code', 'tax')->each(function ($tax) use(&$amount) {
+            $amount -= $tax->amount;
+        });
+
+        return $amount;
+    }
+
     /**
      * Get the paid amount.
      *