diff --git a/system/autoload/Message.php b/system/autoload/Message.php
index ece9ad4a..3f632e46 100644
--- a/system/autoload/Message.php
+++ b/system/autoload/Message.php
@@ -325,6 +325,42 @@ class Message
         $textInvoice = str_replace('[[password]]', $cust['password'], $textInvoice);
         $textInvoice = str_replace('[[expired_date]]', Lang::dateAndTimeFormat($trx['expiration'], $trx['time']), $textInvoice);
         $textInvoice = str_replace('[[footer]]', $config['note'], $textInvoice);
+		// Calculate bills and additional costs
+        list($bills, $add_cost) = User::getBills($cust['id']);
+
+        // Initialize note and total variables
+        $note = "";
+        $total = $trx['price'];
+
+        // Add bills to the note if there are any additional costs
+        if ($add_cost != 0) {
+            foreach ($bills as $k => $v) {
+                $note .= $k . " : " . Lang::moneyFormat($v) . "\n";
+            }
+            $total += $add_cost;
+        }
+
+        // Calculate tax
+        $tax = 0;
+        $tax_enable = isset($config['enable_tax']) ? $config['enable_tax'] : 'no';
+        if ($tax_enable === 'yes') {
+            $tax_rate_setting = isset($config['tax_rate']) ? $config['tax_rate'] : null;
+            $custom_tax_rate = isset($config['custom_tax_rate']) ? (float) $config['custom_tax_rate'] : null;
+
+            $tax_rate = ($tax_rate_setting === 'custom') ? $custom_tax_rate : $tax_rate_setting;
+            $tax = Package::tax($trx['price'], $tax_rate);
+
+            if ($tax != 0) {
+                $note .= "Tax : " . Lang::moneyFormat($tax) . "\n";
+                $total += $tax;
+            }
+        }
+
+        // Add total to the note
+        $note .= "Total : " . Lang::moneyFormat($total) . "\n";
+
+		// Replace placeholders in the message
+        $textInvoice = str_replace('[[bills]]', $note, $textInvoice);
 
         if ($config['user_notification_payment'] == 'sms') {
             Message::sendSMS($cust['phonenumber'], $textInvoice);