diff --git a/agent/modals/invoice/invoice_add.php b/agent/modals/invoice/invoice_add.php
index 6c659798..0d0249d1 100644
--- a/agent/modals/invoice/invoice_add.php
+++ b/agent/modals/invoice/invoice_add.php
@@ -97,6 +97,16 @@ ob_start();
             </div>
         </div>
 
+        <div class='form-group'>
+            <label>Discount Amount</label>
+            <div class='input-group'>
+                <div class='input-group-prepend'>
+                    <span class='input-group-text'><i class='fa fa-fw fa-dollar-sign'></i></span>
+                </div>
+                <input type='text' class='form-control' inputmode="decimal" pattern="-?[0-9]*\.?[0-9]{0,2}" name='invoice_discount' placeholder='0.00'>
+            </div>
+        </div>
+
     </div>
     <div class="modal-footer">
         <button type="submit" name="add_invoice" class="btn btn-primary text-bold"><i class="fa fa-check mr-2"></i>Create</button>
diff --git a/agent/post/invoice.php b/agent/post/invoice.php
index e1d43d1d..affc1945 100644
--- a/agent/post/invoice.php
+++ b/agent/post/invoice.php
@@ -12,6 +12,8 @@ if (isset($_POST['add_invoice'])) {
 
     $client_id = intval($_POST['client']);
 
+    $invoice_amount = 0 - $invoice_discount;     // Calc amount if discount is applied, otherwise wrongly shows 0
+
     // Get Net Terms
     $client_net_terms = intval(getFieldById('clients', $client_id, 'client_net_terms'));
 
@@ -23,7 +25,7 @@ if (isset($_POST['add_invoice'])) {
     //Generate a unique URL key for clients to access
     $url_key = randomString(156);
 
-    mysqli_query($mysqli,"INSERT INTO invoices SET invoice_prefix = '$config_invoice_prefix', invoice_number = $invoice_number, invoice_scope = '$scope', invoice_date = '$date', invoice_due = DATE_ADD('$date', INTERVAL $client_net_terms day), invoice_currency_code = '$session_company_currency', invoice_category_id = $category, invoice_status = 'Draft', invoice_url_key = '$url_key', invoice_client_id = $client_id");
+    mysqli_query($mysqli,"INSERT INTO invoices SET invoice_prefix = '$config_invoice_prefix', invoice_number = $invoice_number, invoice_scope = '$scope', invoice_date = '$date', invoice_due = DATE_ADD('$date', INTERVAL $client_net_terms day), invoice_discount_amount = '$invoice_discount', invoice_amount = '$invoice_amount', invoice_currency_code = '$session_company_currency', invoice_category_id = $category, invoice_status = 'Draft', invoice_url_key = '$url_key', invoice_client_id = $client_id");
     
     $invoice_id = mysqli_insert_id($mysqli);