diff --git a/app/Helpers/Invoice/InvoiceSum.php b/app/Helpers/Invoice/InvoiceSum.php
index 4b5efbf8b480..8886433fa348 100644
--- a/app/Helpers/Invoice/InvoiceSum.php
+++ b/app/Helpers/Invoice/InvoiceSum.php
@@ -120,19 +120,19 @@ class InvoiceSum
 	{
 
         if($this->invoice->tax_rate1 > 0){
-        	$tax = $this->taxer($this->total, $this->invoice->tax_rate1);
+        	$tax = $this->taxer($this->sub_total, $this->invoice->tax_rate1);
         	$this->total_taxes += $tax;
         	$this->total_tax_map[] = ['name' => $this->invoice->tax_name1 . ' ' . $this->invoice->tax_rate1.'%', 'total' => $tax];
         }
 
         if($this->invoice->tax_rate2 > 0){
-        	$tax = $this->taxer($this->total, $this->invoice->tax_rate2);
+        	$tax = $this->taxer($this->sub_total, $this->invoice->tax_rate2);
         	$this->total_taxes += $tax;
         	$this->total_tax_map[] = ['name' => $this->invoice->tax_name2. ' ' . $this->invoice->tax_rate2.'%', 'total' => $tax];
         }
 
         if($this->invoice->tax_rate3 > 0){
-        	$tax = $this->taxer($this->total, $this->invoice->tax_rate3);
+        	$tax = $this->taxer($this->sub_total, $this->invoice->tax_rate3);
         	$this->total_taxes += $tax;
         	$this->total_tax_map[] = ['name' => $this->invoice->tax_name3 . ' ' . $this->invoice->tax_rate3.'%', 'total' => $tax];
         }