diff --git a/app/Classes/Modules/Transactions/Services/CalculateTransactionRefundAmount.php b/app/Classes/Modules/Transactions/Services/CalculateTransactionRefundAmount.php
new file mode 100644
index 00000000..55a9d80b
--- /dev/null
+++ b/app/Classes/Modules/Transactions/Services/CalculateTransactionRefundAmount.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Classes\Modules\Transactions\Services;
+
+
+use App\Models\Transaction;
+
+class CalculateTransactionRefundAmount
+{
+    public function execute(Transaction $transaction, float $amount = 0.00){
+        return $transaction->amount == $amount ? $transaction->amount : $transaction->amount - $amount;
+    }
+
+}
\ No newline at end of file
diff --git a/app/Classes/Modules/Transactions/Services/CalculateTransactionRefundOriginalAmount.php b/app/Classes/Modules/Transactions/Services/CalculateTransactionRefundOriginalAmount.php
new file mode 100644
index 00000000..15e5cb6d
--- /dev/null
+++ b/app/Classes/Modules/Transactions/Services/CalculateTransactionRefundOriginalAmount.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Classes\Modules\Transactions\Services;
+
+
+use App\Models\Transaction;
+
+class CalculateTransactionRefundOriginalAmount
+{
+    public function execute(Transaction $transaction, float $amount = 0.00){
+        return $transaction->original_amount == $amount ? $transaction->original_amount : $transaction->original_amount - $amount;
+    }
+
+}
\ No newline at end of file
diff --git a/app/Classes/Modules/Transactions/Services/CalculateTransactionRefundServiceCharge.php b/app/Classes/Modules/Transactions/Services/CalculateTransactionRefundServiceCharge.php
new file mode 100644
index 00000000..38e48d8b
--- /dev/null
+++ b/app/Classes/Modules/Transactions/Services/CalculateTransactionRefundServiceCharge.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Classes\Modules\Transactions\Services;
+
+
+use App\Models\Transaction;
+
+class CalculateTransactionRefundServiceCharge
+{
+    public function execute(Transaction $transaction, float $service_charge = 0.00){
+        return $transaction->service_charge == $service_charge ? $transaction->service_charge : $transaction->service_charge - $service_charge;
+    }
+
+}
\ No newline at end of file